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
20 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
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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
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Solving complex problems with design and technology since 2005.
We create digital products that streamline operations, grow your audience, and boost business success. Partnering with visionary brands, we transform ideas into impactful solutions using innovative design and technology. Discover how our Software Development expertise can elevate your next project...
Top Services:
Web Development
Web Design
Mobile App Development
UI/UX Design
Software Development
Show more
Location
Los Angeles, California
Number of Employees
250 - 499
Minimal Budget
$50,000 & Up
Portfolios Count
24 Projects Listed
Infinum Services
Web Development
Web Design
Mobile App Development
UI/UX Design
Software Development
Cloud Consulting
DevOps Consulting
Cybersecurity
Staff Augmentation
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Porsche
Nike
CITI
Royal Caribbean
Philips
Bayer
T-Mobile
P&G
Universal
Virgin Mobile
Data sourced from the agency's DesignRush profile
Infinum Reviews & Testimonials
Matic Debelak
Management Board Member at Modra zavarovalnica, d.d.
5.0★
Mobile App Development Review from Matic Debelak
Workstream 1: research and product strategy
Workstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.
Claus-Peter Mueller
Managing Director at NLB Lease&GO doo
5.0★
Software Development Review from Claus-Peter Mueller
We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork.
The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages.
At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.
Anonymous
VP of Marketing at SaaS Company
5.0★
Web Design Review from Anonymous
Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.
Reviews verified by DesignRush and sourced from the agency's profile
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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
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Building Products AI-Native Way
Talentica offers product engineering, with a playbook-driven approach refined across more than 200 products over 22 years. Its 200+ GenAI-certified developers deployed AI features in 60% of products. Recommended for startups and SaaS companies needing MVP development, AI integration, or product scaling...
Top Services:
Software Development
AI Development
IT Services
Big Data Analytics
Blockchain
Show more
Location
Pleasanton, California
Number of Employees
500 - 999
Average Hourly Rate
$30/hr
Minimal Budget
$50,000 & Up
Portfolios Count
7 Projects Listed
Talentica Software Services
Software Development
AI Development
IT Services
Big Data Analytics
Blockchain
Mobile App Development
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Wideorbit
Sema4.AI
Realization Technologies Inc.
TailoredMail
StructuredWeb Inc
Amplify
Mist Systems (Juniper Company)
Data sourced from the agency's DesignRush profile
Talentica Software Reviews & Testimonials
Ashish Sharma
Sr Engineering Manager at OpenGov India Pvt Ltd
4.7★
Software Development Review from Ashish Sharma
Talentica has proven to be an exceptional software outsourcing partner, consistently exceeding expectations in both the quality of their resources, deliverables and their commitment to our success. They function not merely as a vendor, but as an extension of our core engineering team.
Key Highlights of our Partnership:
High Resource Quality: The engineers provided by Talentica are technically strong and highly competent. They integrate seamlessly with our internal teams and quickly take ownership of complex projects.
Commitment and Reliability: Talentica is a truly reliable partner that consistently demonstrates a strong willingness to go beyond the standard scope of work. They proactively identify risks and contribute innovative solutions.
Critical Project Support: Their expertise was pivotal in two critical areas:
Data Pipeline & Reporting: They were instrumental in both enhancing and maintaining a reliable data pipeline & reporting infrastructure.
Software Upgrades: They managed challenging, large-scale software upgrades, ensuring we successfully transitioned to modern technology stacks with minimal disruption.
Overall, Talentica is a dependable and high-value partner assisting our mission-critical projects.
Anonymous
Advisor at IT Company
5.0★
Software Development Review from Anonymous
We had created a conceptual framework to authenticate and verify the provenance, transaction history, and authorship of blockchain-based NFTs. Talentica was brought on board to test and refine the concept from both functional and engineering perspectives, and later to build a Minimum Viable Product (MVP) aligned with the agreed specifications and constraints.
Anonymous
Engineering Manager at SaaS Company
5.0★
Software Development Review from Anonymous
For several years, the team was composed entirely of Talentica contractors. Since January 2022, I have been directly managing them. The Talentica team handled the admin tooling backend, which included multiple Python Flask services with Postgres and Elasticsearch. These services operated in a service-oriented architecture deployed on Kubernetes, using Istio for service mesh and Spinnaker for deployments.
Reviews verified by DesignRush and sourced from the agency's profile
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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
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We're JetRuby — AI-native, award-winning, and ISO-certified agency that's been shipping software since 2010. Our 250+ engineers turn bold ideas into production-ready products, starting from budgets of $50,000 and scaling all the way to enterprise roll-outs...
Top Services:
Web Development
Software Development
Mobile App Development
Web Design
AI Development
Show more
Location
San Francisco, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
33 Projects Listed
JetRuby Services
Web Development
Software Development
Mobile App Development
Web Design
AI Development
IoT
IT Services
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Financial Times
Universum Global
Linksquares
Sortly
NameCoach
Anova
Osram
BackBase
Glowforge
CampusOptics
Data sourced from the agency's DesignRush profile
JetRuby Reviews & Testimonials
Artur Ozierański
Chief Executive Officer at Holdapp
5.0★
Mobile App Development Review from Artur Ozierański
JetRuby provided staff augmentation services for us. developed a mobile app for a design platform. The team was responsible for implementing the backend server and admin panel, and frontend code. The team was made up of experienced developers that have great communication skills, which made resolving any issues or questions a breeze. JetRuby developers kept up-to-date with the latest technologies and trends in development and suggested updates and improvements to the application as needed.
Patrice Archer
Founder & CEO at Appy Ventures
5.0★
Web Design Review from Patrice Archer
They developed a SaaS web platform with smart scheduling and automation tools for us at and built the platform's front- and backend and integrated a custom analytics dashboard and calendar integrations. But to be honest what impressed us most was how deeply they engaged with our vision. They didn't just write code they challenged assumptions, proposed better workflows, and contributed as if they were part of our internal product team. Their ability to think strategically and focus on user experience made them feel more like tech partners than a typical outsourced vendor.
Reviews verified by DesignRush and sourced from the agency's profile
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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
Top Healthcare Product, Technology, & Venture Design Firm
Sidebench is the top healthcare technology design and software engineering firm in the US. We combine strategy, design, technical architecture at every point of our process. We are known for delivering extraordinary business results...
Top Services:
Mobile App Development
Software Development
AI Development
Wearables
UI/UX Design
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Portfolios Count
11 Projects Listed
Sidebench Services
Mobile App Development
Software Development
AI Development
Wearables
UI/UX Design
Web Development
Product Design
CRM Consulting
Cybersecurity
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
American Heart Association
Children's Hospital Los Angeles (CHLA)
Hoag Hospital
Cortica
A16Z (Andreessen Horowitz)
Lightspeed Venture Partners
Microsoft
Rud Bull
HP
Sony
Data sourced from the agency's DesignRush profile
Sidebench Reviews & Testimonials
Abhit
Undisclosed at Undisclosed
4.5★
Translation Services Review from Abhit
They provide consulting services for a healthcare service provider. Sidebench contributed their expertise to a comprehensive mobile application to make sure it would pass Apple Store requirements. Thanks to Sidebench`s input, the application launched on the Apple Store after the first submission. Sidebench`s response times were quick, and they were willing to accommodate a unique working arrangement. The relationship that we had was probably unique; most companies would push to do the development themselves. We only needed Sidebench`s know-how, and they were willing to accommodate us.
Reviews verified by DesignRush and sourced from the agency's profile
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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
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 & President
Symfonee 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
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We Build Technology for Brand Marketers and Agencies
Oshyn partners with some of the world's best brands and creative agencies to create exceptional digital marketing solutions. By providing services, technology, and platforms, we enable creative talent to focus on what they do best: create amazing work...
Top Services:
Web Development
eCommerce Development
DevOps Consulting
Software Development
Show more
Location
Cypress, California
Number of Employees
50 - 99
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Oshyn Services
Web Development
eCommerce Development
DevOps Consulting
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mindera Software Craft specializes in crafting robust IoT solutions through high-performance, scalable software systems. From product development and performance testing to technology consultancy, we provide end-to-end services tailored to your needs...
Top Services:
Software Development
Software Testing
IoT
DevOps Consulting
UI/UX Design
Show more
Location
Los Angeles, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Mindera Software Craft Services
Software Development
Software Testing
IoT
DevOps Consulting
UI/UX Design
Mobile App Development
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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
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More Than Code We Build Trust Through Craft & Commitment
Engineered with integrity. Backed by mentorship. Delivered with care. BTS transforms ideas into scalable, secure, and impactful digital products that deliver long-term value...
Top Services:
Software Development
AI Development
Big Data Analytics
Mobile App Development
UI/UX Design
Show more
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Blue Trail Software Services
Software Development
AI Development
Big Data Analytics
Mobile App Development
UI/UX Design
Cybersecurity
DevOps Consulting
Cloud Consulting
IT Services
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Codbel indicates substantial growth concerning the technology development cycle to release potential futuristic solutions instantaneously. Codbel brings sole solutions to enhance business profits. We offer smart-standing software solutions corresponding to business needs and customers' demands...
Top Services:
Cybersecurity
Software Development
Location
Palo Alto, California
Number of Employees
1000 & Up
Average Hourly Rate
$300/hr
Minimal Budget
$50,000 & Up
Codbel Services
Cybersecurity
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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
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We help brands, marketing teams, and creative agencies solve their design and technical challenges with high-quality solutions...
Top Services:
Web Design
WordPress Website Design
eCommerce Development
Web Development
Software Development
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$175/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Refact Services
Web Design
WordPress Website Design
eCommerce Development
Web Development
Software Development
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
University of Southern Carolina
The Getty Museum
MGA Entertainment
bebe
Data sourced from the agency's DesignRush profile
Refact Reviews & Testimonials
Masha Filatova
Review from Google
5.0★
Masha Filatova's Review Sourced from Google
The design team at Mark It As Done delivers in quality that is affordable and hard to find in the market. If you want an outstanding design they are the right partner for any website project.
Reviews verified by DesignRush and sourced from the agency's profile
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AJProTech is a leading IoT product development studio. With a dedicated team of expert engineers covering electrical, mechanical, software, and supply chain domains, the agency offers full-service support from concept to mass production, transforming clients' ideas into successful products. From conducting...
Location
Calabasas, California
Number of Employees
Under 49
Average Hourly Rate
$149/hr
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
Huupe
AR headset
Terraglide
Data sourced from the agency's DesignRush profile
AJProTech Reviews & Testimonials
Clayton Hoarell
Review from Google
5.0★
Clayton Hoarell's Review Sourced from Google
AJProTech provided a feasibility study for my fitness startup. The team was responsive, attentive, and easy to reach. Alex is a great leader and pays attention to detail heavily. He stays actively involved in the process and is a pleasure to do projects with. Overall the feasibility study was very well done. They consider all real world factors like cost and mass production. The team also made sure that they were always in alignment with our organization's goals. The actual deliverables that they provided like 3D renders, engineering solutions, industrial design, and overall roadmap to production are very well done. I would highly recommend the firm to anyone looking to develop a product. Alex and the team's real world experience make them world class in delivering results and helping you navigate the complex space of product development.
Kayla Austin
Review from Google
5.0★
Kayla Austin's Review Sourced from Google
I've had the pleasure of working with AJProTech for my startup, My Gun’s Been Moved. We initially connected while we were exhibiting at CES, and they immediately stood out for their professionalism and deep understanding of product development.
Throughout the process, Alex and the team have been incredibly thorough and accommodating—from the feasibility study to refining our initial product design. They were especially helpful during a critical time when we were locking down our intellectual property, ensuring that our development process remained smooth and aligned with our long-term goals.
Their team is genuinely invested in helping founders bring their vision to life. I highly recommend AJProTech to any founder looking for a reliable and innovative hardware development partner. I;ve loved working with them and am excited to go to market with our product!
— Kayla Austin, Founder of My Gun’s Been Moved
Chad Gerber
Review from Google
5.0★
Chad Gerber's Review Sourced from Google
AJ Pro Tech did an outstanding job for me in every way possible. They completed a comprehensive feasibility study that demonstrated their expertise and commitment to delivering high-quality products. Moreover, they selected the right technology and components, which resulted in amazing prototypes for both of my computer hardware and VR software requirements. Finally, their timely delivery exceeded my expectations, which just goes to show how reliable and efficient AJ Pro Tech is. Overall, I highly recommend AJ Pro Tech for any tech-related project you might have!
Reviews verified by DesignRush and sourced from the agency's profile
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Oui Will is a digital agency that builds influential brands and innovative digital products with a focus on the "Tech for Good" sector. The agency operates in San Diego and Paris and has received over 20 awards in the past year...
Top Services:
Product Design
Logo Design
Digital Services
Branding
eCommerce Development
Show more
Location
San Diego, California
Number of Employees
Under 49
Average Hourly Rate
$300/hr
Minimal Budget
$50,000 & Up
Oui Will Services
Product Design
Logo Design
Digital Services
Branding
eCommerce Development
Web Design
UI/UX Design
Web Development
Mobile App Development
Software Development
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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.
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