Our directory features trusted software development companies in California serving San Francisco, Silicon Valley, Los Angeles, and San Diego, with expertise across fintech, healthcare, eCommerce, and startups. Compare firms by pricing, size, and reviews to find the right local partner.
Best Software Developers in California
21 Companies-Rankings updated: September 03, 2026
All California software developers on DesignRush are assessed for industry expertise and customer testimonials to provide you with a vetted selection. Certain placements may be paid.
VerifiedVerified by the DesignRush team for authenticity and credibility.
Build it. Run it. Own it.
Sketch delivers AI-enabled custom software and DevOps via a subscription model with two-week delivery cycles, citing zero missed deadlines. Its team serves Fortune 500 clients and is best suited for product teams needing a transparent, agile dev partner without long-term contracts...
Top Services:
Software Development
Cloud Consulting
UI/UX Design
eCommerce Development
DevOps Consulting
Show more
Location
San Francisco, California
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Sketch Development Services Services
Software Development
Cloud Consulting
UI/UX Design
eCommerce Development
DevOps Consulting
Staff Augmentation
AI Development
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
U.S. Bank
Centene Corporation
Maritz
Change Healthcare
Stifel
Reinsurance Group of America (RGA)
bioMerieux
CareSource
CENTEGIX
Purina
Data sourced from the agency's DesignRush profile
Sketch Development Services Reviews & Testimonials
Monica Review from Google
5.0★
Monica's Review Sourced from Google
Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.
John Andesilich Review from Google
5.0★
John Andesilich's Review Sourced from Google
I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Software Outsourcing & Development | 500+ Active Clients
Founded in 2009 by Nacho de Marco and Paul Azorín, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies...
Top Services:
Software Development
Web Development
UI/UX Design
Mobile App Development
Software Testing
Show more
Location
San Francisco, California
Number of Employees
1000 & Up
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
BairesDev Services
Software Development
Web Development
UI/UX Design
Mobile App Development
Software Testing
Web Design
Staff Augmentation
Product Design
ERP Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Google
Salesforce
IBM
Autodesk
Rolls-Royce
SiriuXM
Motorola
Burger King
Chime
Data sourced from the agency's DesignRush profile
BairesDev Reviews & Testimonials
Undisclosed Director of e-commerce solutions at URBN
5.0★
Web Development Review from Undisclosed
We were truly impressed by the BairesDev team's expertise, work ethic, and eagerness to learn. The agency quickly adapted to our corporate culture and integrated seamlessly. When tasked to work on a new platform, it provided solutions within a week. It's like the software version of a versatile and powerful utility infielder.
Undisclosed Engineering Manager at Pinterest
5.0★
Staff Augmentation Review from Undisclosed
BairesDev engineers are the soul of the team. They’re able to identify dependencies and figure out solutions quickly. They strongly exceeded my expectations.
Undisclosed Team Leader at Avigilon
5.0★
Web Development Review from Undisclosed
Following consultations with the BairesDev team, we recognized that the primary objective was to localize the system and concentrate on enhancing the UI, while also upgrading tools to uphold a high-performance analytics system. Witnessing its expertise and ability to address specific issues greatly alleviated our security platform's primary concerns.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
AI-Native App & Enterprise Software Development Company
TechAhead, a global leader in AI-powered custom software development & cloud engineering services, trusted by Fortune 500 companies and enterprises worldwide. We are a Great Place to Work-certified company with 240+ experts and 16 years of experience in engineering innovative, scalable applications...
Top Services:
Mobile App Development
AI Development
Software Development
IoT
Staff Augmentation
Show more
Location
Agoura Hills, California
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
26 Projects Listed
TechAhead Services
Mobile App Development
AI Development
Software Development
IoT
Staff Augmentation
DevOps Consulting
Blockchain
Wearables
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
American Express
Disney
Lafarge
The Times Group
Allianz
AXA
ESPN F1
Audi
JLL
DLF
Data sourced from the agency's DesignRush profile
TechAhead Reviews & Testimonials
Dolly Pundeer Director of Sales at Elite Mindz
5.0★
Mobile App Development Review from Dolly Pundeer
We were thrilled with our experience developing a Shipping App with TechAhead. They delivered exactly what we envisioned, and the entire process was smooth and efficient. Their team was incredibly knowledgeable and always kept us informed throughout the project. The final product is not only functional but also user-friendly, exceeding our expectations. Their creativity truly stood out! When we approached them for our shipping app development, they didn't just follow a template. They took the time to understand our specific needs and came up with innovative features that enhanced the user experience for both our customers and our own staff. We highly recommend TechAhead for any app development needs.
Noah Kraft CEO and Co-Founder at Wonderbelly
5.0★
Mobile App Development Review from Noah Kraft
It was a pleasure to collaborate with TechAhead on our mobile app development project. Their team went above and beyond our expectations with their creative ideas, showcasing their extraordinary Flutter and IoT experience. Throughout the project, their expertise and dedication were clear, and we were very grateful for their proactive grasp of our requirements. We are thrilled with the app's performance and eager to work with TechAhead again in the future.
Rory Bordiuk Co-Founder and CEO at Cirrus Glass
5.0★
Mobile App Development Review from Rory Bordiuk
Techahead proven to be an essential partner on our application development project. Their team demonstrated good communication and seamless collaboration from the start, which contributed to the delivery of a high-quality product. We were particularly pleased by their ability to provide creative technological solutions that exactly matched our needs. Overall, we appreciate Techahead's service and competence and would certainly recommend them to anybody looking for great mobile app development services.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
A Reliable Full-Service Software Development, Cloud, DevOps and QA Partner
Leveraging 30 years of excellence designing, developing, deploying and supporting world-class software solutions, Kanda Software has established itself as a trusted Software Development, Cloud Engineering, DevOps and QA partner for companies ranging from innovative startups to large enterprises...
Top Services:
Software Development
Mobile App Development
IT Services
IoT
VR/AR
Show more
Location
Alameda, California
Number of Employees
500 - 999
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
16 Projects Listed
Kanda Software Services
Software Development
Mobile App Development
IT Services
IoT
VR/AR
UI/UX Design
Staff Augmentation
Business Consulting
ERP Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
OneSky
Rue La La
imprivata
Lionbridge
CBRE
Havas Media
College Interactive
KAUST
Nuance
Association of Computing Machinery
Data sourced from the agency's DesignRush profile
Kanda Software Reviews & Testimonials
Alex Koifman President at RJCF
5.0★
Software Development Review from Alex Koifman
I've used Kanda's services for years. They're reliable and their work is of high quality. I'd recommend them to anyone looking for a partner in software engineering initiatives.
Andrew Duggan CEO at medQue
5.0★
Mobile App Development Review from Andrew Duggan
Kanda proved to be an exceptional choice for our development needs. They were much more [of] a partner to our startup than a vendor. The entire team treated our project like it was their own company, and the results showed that. Our customers were extremely please[d] with the desktop and mobile applications. I would definitely recommend hiring Kanda for any and all of your development needs. (Verified via email)
Alan Bugos Head of Technology at LifePod Solutions
4.8★
Software Development Review from Alan Bugos
We have worked with Kanda Software for over two years and [are] very please[d] with the quality of work, cost-effective approach in resourcing team members, and the expertise they bring to solving very complex development challenges. Overall, we are very happy with Kanda's team! (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...
Top Services:
Software Development
Mobile App Development
Software Testing
AI Development
IoT
Show more
Location
Aliso Viejo, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
ITRex Group Services
Software Development
Mobile App Development
Software Testing
AI Development
IoT
Blockchain
IT Compliance Solution
IT Services
Big Data Analytics
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Dollar Shave Club
Jib Jab
21st Century Fox
Procter & Gamble
Meet Me
Dun & Bradstreet
Data sourced from the agency's DesignRush profile
ITRex Group Reviews & Testimonials
Tammy Walker Owner at Retail Company
5.0★
IT Services Review from Tammy Walker
Extremely creative and awesome company name. It sounds trustworthy.
Undisclosed Product Owner at Global retailer
5.0★
Web Development Review from Undisclosed
We are making in minutes things that our teams have been stuck with for days before.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Applications and platforms proudly built here in the USA. We have assisted some of the most prominent global brands operating in complex and heavily regulated sectors in successfully launching software solutions that underpin their go-to-market strategy, ensuring a world-class customer experience...
Top Services:
Software Development
Mobile App Development
UI/UX Design
Product Design
Creative Services
Show more
Location
Irvine, California
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Portfolios Count
14 Projects Listed
Kingsmen Digital Ventures Services
Software Development
Mobile App Development
UI/UX Design
Product Design
Creative Services
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology...
Top Services:
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
Show more
Location
Costa Mesa, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Tepia Services
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
Web Design
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Marugame Udon
MicroVention
Henry Schein
Meta
Irvine Company
Participant Media
Pujol's Foundation
MoodMe
RELI Solutions Inc.
SleepCenter of Nevada
Data sourced from the agency's DesignRush profile
Tepia Reviews & Testimonials
Dr. Lesley Kirkpatrick, MD Founder at mindcomb
5.0★
Mobile App Development Review from Dr. Lesley Kirkpatrick, MD
I had a great experience working with Tepia. Abraham, the Founder and CEO, was available, helpful, and actively involved throughout every stage of the process. Kimmy, my assigned project manager, was organized, responsive, and clear in her communication from start to finish.They anticipated potential obstacles before they became issues and approached everything with a thoughtful, solutions-oriented mindset. The team was consistently proactive, professional, and transparent. I truly appreciated their structure and ability to keep things moving smoothly. I would highly recommend working with Tepia.
Robert Beknazarian President at RELI - Windows & Doors
5.0★
Mobile App Development Review from Robert Beknazarian
Working with Tepia Co has been an exceptional experience from start to finish. They played a critical role in developing our mobile app for RELI, and I can confidently say they exceeded our expectations on every levelFrom day one, Tepia demonstrated a deep understanding of both the technical and business sides of app development. They didnt just execute tasks they asked the right questions, challenged assumptions when needed, and helped us think through complex workflows in a way that improved the final product. Their team truly operates as a strategic partner, not just a development vendor The communication was excellent throughout the entire process. We always knew where things stood, timelines were clear, and any issues or changes were handled proactively and transparently. For a project as complex as ours involving pricing logic, user flows, financing options, compliance considerations, and scalability this level of clarity and responsiveness made a huge difference.What really stood out was Tepias attention to detail and commitment to quality. The app they helped build is stable, clean, intuitive, and built with long-term growth in mind. They were thoughtful about architecture, performance, and future enhancements, which is critical for a company like ours that plans to scale aggressively.They were also extremely flexible and patient as our requirements evolved (which happens in real-world startups). Instead of pushing back, they collaborated with us to find smart, efficient solutions that aligned with our vision and budget.If youre a founder or business owner looking for a team that:Truly understands mobile app developmentCommunicates clearly and consistentlyThinks strategically, not just technicallyDelivers high-quality, scalable workI highly recommend Tepia Co without hesitation. They have been a trusted partner in bringing RELI to life, and we look forward to continuing to work with them as we grow
Ara Agopian CEO at Solar Insure
5.0★
Mobile App Development Review from Ara Agopian
I had a great experience with Tepia on our mobile app development. The project was managed very well and finished on time. Thank you Tepia!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Zoho consulting, development and integration services for operationally complex organizations.
CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...
Top Services:
Software Development
AI Development
Web Development
CRM Consulting
ERP Consulting
Show more
Location
Santa Cruz, California
Number of Employees
50 - 99
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
CodeStringers Services
Software Development
AI Development
Web Development
CRM Consulting
ERP Consulting
Managed Services
Mobile App Development
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Tübr Storage
Addiction Rep
True Pet Kitchens
MasterControl
Tonal
MindTRAK Golf
Mido Play
Inboard Technology
SiteOne Services
KnowledgeDesk
Data sourced from the agency's DesignRush profile
CodeStringers Reviews & Testimonials
Lori Feld Oakley Executive VP at MasterControl
5.0★
Software Development Review from Lori Feld Oakley
Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.
Christian Schraga CEO at Tabula Learning
4.8★
Enterprise Review from Christian Schraga
CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Fueled is a top digital transformation agency that caters to a variety of unicorn startups, global brands, and Fortune 500 companies...
Top Services:
Mobile App Development
Software Development
Branding
Web Design
Show more
Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$175/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Fueled Services
Mobile App Development
Software Development
Branding
Web Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
MGM International Resorts
Verizon
Barney's NYC
Matador
Crunchbase
Rite Aid
QuizUp
Data sourced from the agency's DesignRush profile
Fueled Reviews & Testimonials
John Review from Google
5.0★
John's Review Sourced from Google
Came across these folks at the Logan Sq Farmers Market and am glad I did. Delicious, healthy snacks. Love supporting a business that gives employment opportunities to individuals with disabilities. Highly recommend checking out Fueled by AF!
Savannah Visor Review from Google
5.0★
Savannah Visor's Review Sourced from Google
I bought a variety pack of protein bites from the Made in Chicago Market. They taste really good and have a nice amount of protein. The chocolate chip cookie dough and fudge brownie are my favorites. The serving size is 3 seperate bites, but I was satisfied after 2. They are a great snack! If I’m just a little hungry and want something a tad sweet it’ll be great to just grab one from the fridge.
Jerry Vachaparambil Review from Google
5.0★
Jerry Vachaparambil's Review Sourced from Google
Came across Fueled by AF at the Elmhurst Farmers Market, big fan of their mission and these maple pecan protein bites!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Accelerate Velocity With Elite Engineers and Agile Experts.
Distillery is a seasoned player in the field of nearshore software development, offering expertise and a robust process for building, scaling, and innovating technology solutions...
Top Services:
Software Development
Mobile App Development
Software Testing
Blockchain
IoT
Show more
Location
Manhattan Beach, California
Number of Employees
100 - 249
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Portfolios Count
6 Projects Listed
Distillery Services
Software Development
Mobile App Development
Software Testing
Blockchain
IoT
Web Design
Web Development
IT Services
Product Design
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Savyint
Redbull
Sincplicity
5 Miles app
U-Nest
Tala
nēdl
Samsung SMT
Data sourced from the agency's DesignRush profile
Distillery Reviews & Testimonials
denny stearns Review from Google
5.0★
denny stearns's Review Sourced from Google
I bought the Carmela the other day. It is smoky, with burnt Carmel, marshmallow taste and smell. This is not my type of whiskey. I like smoke but there was something that disagreed with me. So this line is not my cup of... whiskey. Looking forward to trying their Bourbon and will update my tasting experience. The R6 distillery reached out to me which shows they care about their product. That goes far with me.Update... I have now tasted the R6 Distillery Bourbon Whiskey. Very pleasant to the nose with light vanilla. Taste is smooth and not sharp. The taste is in my wheelhouse of Bourbons. Sweet, smooth vanilla, light Carmel. I hear you can get a bottle at COSTCO and i saw one on the shelf at the local convenience store in Gundo. I would recommend it.
Inna Worrall Review from Google
5.0★
Inna Worrall's Review Sourced from Google
Great quality!We received selection of bourbons as a splendid gift from our friend. That was a first time we tried this product. We tested and tested different ones and enjoyed it so much, but did not have even a hint of a headache next morning! Amazing!
Victor Alpha Review from Google
5.0★
Victor Alpha's Review Sourced from Google
Great speakeasy, fine spirits, nice atmosphere. Drawback is licensing restrictions - only one cocktail or 1.5 oz total in spirits. Beers are unlimited. Another flaw is when a private event is scheduled, no notice is posted on the website, meaning if you’re traveling here from afar, you will have to travel right back spiritless and hopless.Edit: When I checked the website I did not see the notice about the private event. If you say it was posted, then it was my fault for not being thorough. Also, the state did not want your missing stars and I have too many myself. They are all yours. And the gin was delicious. Cheers!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We are a product development studio for innovators, specializing in B2B SaaS platforms for productivity, analytics, marketing, sales, and engineering. We work with serial entrepreneurs, startup founders, and CTOs at industrial enterprises to create time through innovative products...
Top Services:
Web Development
Mobile App Development
CRM Consulting
ECM Consulting
IT Services
Show more
Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$60/hr
Minimal Budget
$50,000 & Up
Portfolios Count
14 Projects Listed
Gearheart IO Services
Web Development
Mobile App Development
CRM Consulting
ECM Consulting
IT Services
DevOps Consulting
eCommerce Development
Software Development
AI Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
We have the privilege of collaborating with the top businesses in the world on cutting-edge transformational technologies thanks to our partnership with numerous Cloud service providers...
Top Services:
Software Development
Location
San Diego, California
Number of Employees
Under 49
Average Hourly Rate
$199/hr
Minimal Budget
$50,000 & Up
Achieve Internet Services
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Odyssey Computing is an industry leading custom software development company based in San Diego, CA. As a top app development company, we specialize in mobile and web app design and development, including enterprise solutions. Since our founding in 1990, our focus has been to provide solid, functional, custom...
Top Services:
Mobile App Development
Software Development
Location
San Diego, California
Number of Employees
Under 49
Average Hourly Rate
$125/hr
Minimal Budget
$50,000 & Up
Portfolios Count
4 Projects Listed
Odyssey Computing Services
Mobile App Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HP
Dexcom
Cardinal Health
ThermoFisher Scientific
Microsoft
Illumina
ABB
SKF
Viasat
Leidos
Data sourced from the agency's DesignRush profile
Odyssey Computing Reviews & Testimonials
Robert Porambo Review from Google
5.0★
Robert Porambo's Review Sourced from Google
Karim and his team do an amazing job and we are very appreciative of their tremendous support.
Richard Bergfeld Review from Google
5.0★
Richard Bergfeld's Review Sourced from Google
Karim is the concept/idea man and has assembled a superb team of top notch app and web developers. He has been key to our company's success. It is very easy to give Karim just a summary concept of what you want developed and within days, or a couple weeks in complex cases, you get back a sample that is always beyond your expectations. Thank you Karim and your team.CEO & PresidentSymfonee Corporation
Keith McNally Review from Google
5.0★
Keith McNally's Review Sourced from Google
Odyssey Computing Is Outstanding In All Respects! Innovative, quick, reliable, timely and loyal. They exceeded our expectations and have done so for 20+ years. Keith McNally, President, Ameranth Inc.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Award-Winning Mobile Design & Development Agency with AI Expertise
Utility is a premier digital product agency specializing in custom mobile apps, web platforms, and AI-powered solutions for forward-thinking startups and global brands including Airbnb, Coca-Cola, Samsung, the NBA, and Forbes...
Top Services:
Mobile App Development
Software Development
AI Development
UI/UX Design
Digital Services
Show more
Location
Los Angeles, California
Number of Employees
100 - 249
Average Hourly Rate
$149/hr
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
Utility Services
Mobile App Development
Software Development
AI Development
UI/UX Design
Digital Services
Web Development
Digital Strategy
eCommerce Development
Web Design
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Appstem Designs and Develops Custom Software To Help Our Clients Solve Complex Business Problems.
Appstem is a full-service mobile strategy, design and development agency, Based in San Francisco, Appstem has delivered over 200 apps with a team of experts specializing in strategy, QA, development and UI/UX design...
Top Services:
Web Design
eCommerce Development
IoT
Mobile App Development
Software Development
Show more
Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Appstem Services
Web Design
eCommerce Development
IoT
Mobile App Development
Software Development
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Tesla
Johnson & Johnson
Zendesk
Kaiser
Monster
Byton
Geisinger
Cambia
Data sourced from the agency's DesignRush profile
Appstem Reviews & Testimonials
Nate Sroor Review from Google
5.0★
Nate Sroor's Review Sourced from Google
From my initial consultation to the completion of the development process, the entire team at AppStem has been a pleasure to work with. With so many Mobile App Development companies to choose from, it's important to chose one who is willing to understand your needs and clearly outline a game plan before getting into development. If you're looking for more of a partner than just an agency, you're in good hands with AppStem.
Zachary Zimmerman Review from Google
5.0★
Zachary Zimmerman's Review Sourced from Google
Not sure I would have been able to find a better development team. My app was built to spec and is running great! I would highly recommend them
Ryan Ricketts Review from Google
5.0★
Ryan Ricketts's Review Sourced from Google
AppStem was able to answer all my questions in regards to designing a mobile app. They brought original ideas and professional aspect to their project for us. My team was extremely happy with the final results. I know I will be going back to them for my mobile app development needs.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
We're a software development agency that builds products that scale. Our engineering-first culture and product-minded approach have powered success stories like Calendlythe scheduling platform that revolutionized meetings for millions...
Top Services:
Software Development
AI Development
Mobile App Development
IT Services
DevOps Consulting
Show more
Location
West Hollywood, California
Number of Employees
100 - 249
Average Hourly Rate
$149/hr
Minimal Budget
$50,000 & Up
Railsware Services
Software Development
AI Development
Mobile App Development
IT Services
DevOps Consulting
IT Compliance Solution
Cloud Consulting
Web Development
Web Design
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
BrightByte
TennisHub
Calendly
SendGrid
Data sourced from the agency's DesignRush profile
Railsware Reviews & Testimonials
Yurii Review from Google
1.0★
Yurii's Review Sourced from Google
Don't waste your time on them, they are not really hiring, just pretending like they do. Not sure why, maybe to collect some data on potential candidates.
Przemyslaw Eliasz Review from Google
1.0★
Przemyslaw Eliasz's Review Sourced from Google
Unprofessional approach to the recruitment process in finance. Watch out just not to waste your time.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Dayspring Partners, previously known as Dayspring Technologies, specializes in supporting clients in navigating the complexities of the digital era. We offer expertise in four key service areas: brand design, web design, custom software development and Salesforce solutions for non-profit organizations...
Top Services:
Web Development
Software Development
Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$199/hr
Minimal Budget
$50,000 & Up
Dayspring Partners Services
Web Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Metabolon
Positive Coaching Alliance
Raising a Reader
Data sourced from the agency's DesignRush profile
Dayspring Partners Reviews & Testimonials
Gary Wake Review from Google
5.0★
Gary Wake's Review Sourced from Google
Maintaining a website seems like it should be an easy thing, especially if you're using a tool like Wordpress, but it can be a serious pain. Fortunately, Dayspring has worked with our page for years and have made it so easy. They respond quickly to questions, know how to fix just about anything that we have trouble with and overall are very knowledgeable and patient. They're a great team to work with!
Clare Crawford Review from Google
5.0★
Clare Crawford's Review Sourced from Google
Dayspring Studio helped launched Jubilee's website back in 2015 and subsequently provided additional update. I had found Janet and other staff there to be super helpful. They were always responsive to our concerns and input. Everything was done in a timely manner. For someone who was not very tech-savvy, Janet was patient in explaining how Squarespace worked and how to adjust content as needed. We appreciated their thoughtfulness throughout the whole process.
Adrian Tirtanadi Review from Google
5.0★
Adrian Tirtanadi's Review Sourced from Google
Dayspring helped our company with a UX design project and with a rebranding project. They are consummate professionals and amazing designers. Easy to work with: they keep their deadlines and stay in budget. Can't recommend enough.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Digital Deployment is a website development firm focused solely on website development and its various facets including content management, UX/UI, accessibility, information architecture, strategy, migration and stakeholder discovery. We currently operate over 300 websites for clients across the Uni...
Top Services:
Web Development
IoT
Web Design
Mobile App Development
Software Development
Show more
Location
Sacramento, California
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
Digital Deployment Services
Web Development
IoT
Web Design
Mobile App Development
Software Development
SEO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
California State Teachers' Retirement System
New York City Employees' Retirement System
Southern Regional Education Board
Monterey Regional Airport
The City of Rocklin
Data sourced from the agency's DesignRush profile
Digital Deployment Reviews & Testimonials
Chris Ryan Review from Google
5.0★
Chris Ryan's Review Sourced from Google
The folks at Digital Deployment ("DD" as they say) are simply amazing to work with. From start to finish they provide stellar customer service and we couldn't be happier with the site. Support remains quick and responsive. Keep up the good work "DD"!
Patrick Mcgiff Review from Google
5.0★
Patrick Mcgiff's Review Sourced from Google
helpful team and great service. As President of Sacramento Children’s Chorus, they have been an indespensible business partner to us! Thank you team Digital Deployment!
Marianne Clemmens Review from Google
5.0★
Marianne Clemmens's Review Sourced from Google
Digital Deployment is the best! Our nonprofit has worked with Digital Deployment for over 15 years. Their staff is very knowledgeable, creative and they quickly respond to any problems or questions about our website. We highly recommend their services.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
This Los Angeles based company is not your average web design and marketing company, LiveWebMedia is an avant-garde web and interactive media agency founded in 1998 in Southern California...
Top Services:
eCommerce
Social Media Marketing
Digital Marketing
PPC
Web Design
Show more
Location
Laguna Beach, California
Number of Employees
50 - 99
Average Hourly Rate
$125/hr
Minimal Budget
$50,000 & Up
LIVEWEBMEDIA Services
eCommerce
Social Media Marketing
Digital Marketing
PPC
Web Design
WordPress Website Design
Web Development
Graphic Design
Mobile App Development
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A Band Apart
Paramount Pictures
Cal Choice Financial
MTV
Hard Rock Cafe'
US Polymers Inc.
Century 21
Beitlet Commercial Real estate
Westlake Woman's Club
Connecting A Caring Community
Data sourced from the agency's DesignRush profile
LIVEWEBMEDIA Reviews & Testimonials
Esti Benchimol Review from Google
5.0★
Esti Benchimol's Review Sourced from Google
Alen was so responsive and worked really quickly and efficiently. He took his time explaining to me exactly what he set up for me and how I can manage it all on my own and was available for any questions need. I would definitely recommend working with LiveWebMedia!
Bailey Grotton Review from Google
5.0★
Bailey Grotton's Review Sourced from Google
LiveWebMedia helped me put the schedule and booking feature on my website. They also helped me pick out the best WIX package that fit my budget.
Bill Ferrell Review from Google
5.0★
Bill Ferrell's Review Sourced from Google
From the first phone call and conversation with Alen at LiveWeb Media, I knew I found the people the company that could provide me with the services I truly needed. They are very professional and super helpful. I would say that if you are looking for a web design company that also offers other services, such as SEO and Social Media packages, look no further!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...
Top Services:
AI Development
Software Development
Web Development
Mobile App Development
Blockchain
Show more
Location
Santa Clara, California
Number of Employees
1000 & Up
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Persistent Services
AI Development
Software Development
Web Development
Mobile App Development
Blockchain
Cybersecurity
Managed Services
IT Services
Big Data Analytics
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
GB Bank
Qapita
Vermont
Data sourced from the agency's DesignRush profile
Persistent Reviews & Testimonials
Sundeep Patel Review from Google
5.0★
Sundeep Patel's Review Sourced from Google
Persistent Systems Ltd is a global software company that provides innovative software solutions to clients worldwide. The Bhageerath office is one of the company's offices located in Pune, India. As an employee of Persistent Systems Ltd, I have had the opportunity to work at this office and experience its work culture, facilities, and environment.Work Culture:The work culture at Persistent Systems Ltd Bhageerath office is excellent. The company values its employees and provides a supportive environment that encourages creativity, innovation, and collaboration. The office has an open-door policy, and employees are encouraged to share their ideas and opinions freely. The management is approachable and provides ample opportunities for career growth and development.Facilities:The Bhageerath office has excellent facilities that cater to the needs of its employees. The office is spacious and well-equipped with state-of-the-art technology and infrastructure. The office has a modern cafeteria that serves a variety of delicious food and beverages. The office also has a gymnasium, a recreation room, and a meditation center, which are available to employees to use during their free time.Environment:The environment at Persistent Systems Ltd Bhageerath office is conducive to work. The office is located in a peaceful and quiet area, away from the hustle and bustle of the city. The office is surrounded by lush greenery and has a beautiful view of the nearby hills. The office has an eco-friendly policy and encourages its employees to adopt sustainable practices.Employee Experience:As an employee of Persistent Systems Ltd Bhageerath office, my experience has been excellent. The company provides a supportive and inclusive work environment that values its employees. The facilities and amenities provided by the company are top-notch, which makes it a great place to work. The company also provides ample opportunities for career growth and development.Conclusion:In conclusion, Persistent Systems Ltd Bhageerath office is a great place to work. The work culture is excellent, and the company values its employees. The facilities and amenities provided by the company are top-notch, which makes it a comfortable and enjoyable place to work. The environment is conducive to work, which makes it an ideal location for an office. Overall, it is a highly recommended place to work.
Harshad N Review from Google
5.0★
Harshad N's Review Sourced from Google
Well known IT company in Pune. Founded and managed by Dr Deshpande.Persistent family known for their social service along with the core business in IT sector..
Praveen Soni Review from Google
5.0★
Praveen Soni's Review Sourced from Google
One of the best IT company in pune. Location and offices are best. Personally I likes the name of buildings.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
6 Frequently Asked Questions About Software Development Companies in California
What services does a software development company in California typically provide?
It offers the following custom software development services:
Custom software development: Designing, building, and deploying software tailored to specific user needs or business requirements.
Mobile app development: Building Android and iOS applications that leverage native device features such as Bluetooth, camera, and GPS for enhanced functionality.
Web app development: Building software that lives on a remote server and is accessed through a web browser rather than being downloaded onto a device's hard drive.
Website development: Designing and developing both the front-end and back-end of a website, with a focus on responsive layouts, intuitive interfaces, and practical features.
Cloud development: Software developers in California craft bespoke programs that run on cloud environments and allow for secure and easy data retrieval and storage, while offering cloud consulting services too.
Quality assurance: Conducting rigorous tests to identify and resolve potential issues and ensure the software solutions meet performance standards, user expectations, and regulatory requirements.
Maintenance and support: Performing software updates to enhance security, functionality, and performance.
How much do these companies charge for software development services?
Software development pricing in California is among the highest in the United States, driven by talent demand in hubs like Silicon Valley, San Jose, and San Francisco. California sits at the top end globally, often 30-70%more expensive than offshore alternatives.
Costs vary widely by experience level, project scope, and specialization.
In top-tier markets, software developers in California charge $160-$275/hr.
Costs by project
Small projects (MVPs, simple apps): $40,000-$80,000
Mid-size platforms: $80,000-$150,000
Complex systems (enterprise, AI, SaaS): $150,000-$300,000+
What is the Privacy by Design requirement in California?
Privacy by Design (PbD) in California is a core regulatory expectation embedded in the California Privacy Rights Act (CPRA) and the California Consumer Privacy Act framework.
Privacy by Design requires software development companies in California to build privacy into systems from the start, not add it later, integrate privacy into software architecture, business processes, and data flows, and consider user privacy at every stage of development and data processing.
This requirement applies to web and mobile applications, data pipelines and analytics systems, and AI and automated decision-making tools.
How long does it take to complete a software development project in California?
The average timeline for a custom software development company in California ranges from 3 to 12 months, depending on the complexity and scope of the project. While AI-augmented development tools have increased coding velocity by nearly 40%, stricter California regulations (like the CCPA and new AI transparency laws) have added mandatory compliance and testing phases that offset those gains.
Project type
Timeline
Key focus area
Minimum Viable Product (MVP)
3-4 months
Core features only; rapid market entry.
Medium complexity SaaS
6-9 months
API integrations, multi-user roles, and scaling
Enterprise-grade systems
9-18+ months
Legacy migration, high security, and deep compliance.
AI-native platforms
12-24 months
Model training, ADMT audits, and data lineage.
Can I hire a California agency that uses offshore developers?
Yes, you can. Many top software developers in California use offshore or hybrid teams. In this setup, the agency usually keeps its strategy, design, and project management in California, while teams in Eastern Europe, Latin America, or Southeast Asia handle heavy-duty coding.
While the model is effective, California’s strict laws mean that a software development company in California must be the shield for your business. Even if developers are offshore, they may have access to your users' personal data. Under the 2026 CCPA rules, you must ensure the agency has Data Transfer Agreements in place. The data must be handled as if it never left California.
What is the ADMT regulation?
ADMT stands for Automated Decision-Making Technology. In the context of California law (specifically the CCPA/CPRA), it refers to any technology that uses computation to replace or substantially replace human involvement in making decisions about people.
As of January 1, 2026, new regulations from the California Privacy Protection Agency (CPPA) have officially taken effect, placing strict guardrails on how businesses use these tools. If the software solution you need uses AI to make decisions, a top software development company in California must provide a way for users to opt out and receive an explanation of the logic.
The regulation targets any system, including artificial intelligence, machine learning, and simple algorithms that process personal data to make a significant decision concerning a consumer.
This includes decisions related to:
Employment: Hiring, compensation, or work allocation.
Financial Services: Lending, insurance, or credit.
Essential Services: Housing, healthcare, or education enrollment.