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.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Where Exceptional Apps Are Just The Beginning
BitsWits builds iOS, Android, Flutter, and React Native apps alongside AI and blockchain solutions, with a four-week delivery guarantee. Its work spans healthcare, fintech, and eCommerce, making the software development company suitable for businesses needing fast, affordable mobile app development...
Top Services:
- Mobile App Development
- Software Development
- VR/AR
- Blockchain
- AI Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBitsWits Services
Data sourced from the agency's DesignRush profileFitNow Wisu Soul Scribe Grease Monkey Beats
BitsWits Reviews & Testimonials

Mobile App Development Review from Sydney Malone
With the development of our Mobile App, BitsWits performed a fantastic job. Their team was quick to respond and produced a great application that runs smoothly on all platforms. We are quite happy with the result.

Mobile App Development Review from Benson Sung
They created a Mobile app for Medical services, and patient management has changed greatly as a result. The app works well with our current systems, is safe, and is simple to use. Their team produced a top-notch product on schedule while paying close attention to our unique requirements. We are really pleased with their work and heartily recommend BitsWits to anyone in need of app development services.

Mobile App Development Review from Steve Garry
The outcomes of our collaboration with BitsWits to develop an Online Food delivery app were outstanding. Real-time tracking is integrated into the app, which makes it easy to use and has significantly enhanced our customer support. Their development staff was quick to respond and took care of all of our requests. We couldn't be more pleased with the result!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBringing awesome ideas to life
Our mission at Closeloop Technologies is to empower enterprises with transformative Software Development, from advanced conversational AI and custom CRM/ERP to robust mobile apps and e-commerce platforms. With our extensive industry knowledge, achieving success in digital innovation is second nature...
Top Services:
- Software Development
- Web Design
- Mobile App Development
- AI Development
- Wearables
- Show more
- Location
- Mountain View, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 31 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCloseloop Technologies Services
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Closeloop Technologies Reviews & Testimonials

Software Development Review from Rick Tomsic
Global business segment growth is requiring technology to keep up with the increase. Our platform is designed to be scalable and able to be implemented across several nations. We collaborated with Closeloop Technologies to work with our staff in order to scale up the programme.An whole agile team is provided by Closeloop Technologies to participate in our programme. At first, we gave them the data in hopes that they would aid in our execution. They have combined Spring Boot, JavaScript, and AWS cloud technologies.The platform is a value stream and full-suite insurance lifecycle. It is an internal iterative software programme.Working with Closeloop Technologies is simple. They pick up new roles rapidly and possess agile team abilities that are industry standard. The staff not only fits right in, but they also contribute their knowledge and perspectives, making them a vital component of the programme.

Software Development Review from Henrique Dubugras
Services that had been slow or unavailable for weeks had to be brought back up. We must bring back our vital business role. After learning about our issue, the Closeloop project manager assigned a senior database specialist to address it. Our main programmer had a direct conversation with the database specialist of Closeloop after they listened to our problem and asked some follow-up questions. Within less than two hours, the solution to our issue had been verified and implemented.

Software Development Review from Bill Rogers
We occasionally utilize outsourced resources to increase our team's ability to satisfy the commercial demands of our clients. This time, my goal was to create and enhance the products we were providing to clients. Their engineers joined our own team to work on the project, creating MetaTrader-based software for our traders. They assisted us in creating and refining a suite of services that give our clients more functionality; up until that point, the solution had been erratic and unconventional. Their most recent endeavor was the development of an income trading module. We employed a scrum methodology with sprint deliverables and agile planning. Along with narrative points, we also used our in-house bug tracking application for project and task management. Everything was really accurate.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDedicated Teams That Build Complex Software Systems
SiliconMint designs, develops, and supports mission-critical software systems. Based in San Francisco, SiliconMint has offices in New York and Europe to serve clients across the globe...
Top Services:
- Software Development
- Mobile App Development
- IoT
- AI Development
- Cybersecurity
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSiliconMint Services
Data sourced from the agency's DesignRush profileVerizon Yahoo Japan NASDAQ NYSE Goldman Sachs Barclays BCG Wargaming,net AA orange
SiliconMint Reviews & Testimonials

Software Development Review from Leon Hounshell
Using SiliconMint’s AI engine and their engineering team was a great decision for us. They built the core foundation of our ThingSpace IoT platform on time and within budget, helping us serve millions of customers across the country. I would highly recommend the SiliconMint team for their drive and dedication to the art of software architecture and development.

Software Development Review from Leonid Zhukov
I’m always impressed by the technical depth & breadth of SiliconMint’s engineering team and the passion they bring to our projects. We’ve worked with them on distributed systems, data science projects, and a predictive maintenance system for the oil and gas sector. Every time, they blew me away with their experience, passion, energy, and the overall dedication for how they approach software engineering and delivery.

Cybersecurity Review from Steve Grice
SiliconMint built a real-time fraud detection system for us in a record period of time, with precision and recall that rivals the best in the industry. I was pleasantly impressed by their passion, dedication, and attention to detail in how they approached software development, driving excellence and speed within our organisation.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsNearshore Software Development Services
Clear your backlog and ship products you're proud of faster with our nearshore software development resources. We provides highly skilled, team-based resources to companies that need tech talent fast...
Top Services:
- Mobile App Development
- Software Development
- Staff Augmentation
- Web Development
- eCommerce Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAdmios Services
Data sourced from the agency's DesignRush profileConverse Anaplan Zignal Labs Contract Pod AI Collective Health Terraformation Conductor Shop Ware Symphony Off the Grid
Admios Reviews & Testimonials

Web Development Review from Will McDonald
I was able to dictate requirements at a high level without having to deal with the details. The Admios team was able to make technical level decisions on their own. They were a first class partner of the team.

Software Development Review from Mark Griffin
Due to past experiences, Latent AI is always cautious when hiring external engineering resources for a project. But collaborating with Admios is a breath of fresh air. The agencys account manager is nothing short of professional, attentive, and understanding of client needs. Furthermore, Admios seasoned and self-sufficient engineers fit seamlessly into the Latent AI culture. The team treats and trusts them as one of their own. (Verified via email)

Mobile App Development Review from Matt Attaway
Off the Grid has had a longstanding developer partnership with Admios. Recently, the client trusted Admios with building a complex React Native POS system and a guest order-ahead app. Given the complexities of the project, Off the Grid wouldn't have chosen any other agency to work with. The Admios' developers did an excellent job, the management was proactive, and the software quality is exceptional. Admios is highly recommended. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDriven by Innovation
The best eCommerce development company empowering you with the tools you need to conquer your industry...
Top Services:
- Wearables
- VR/AR
- Mobile App Development
- Software Development
- eCommerce Development
- Show more
- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFolio3 Services
Data sourced from the agency's DesignRush profileLioher - Magento B2B Solution TJM Flexiglass Trilink Colgate-Palmolive Standard Chartered Zoetis Mercedez Benz Barnes and Noble Merck
Folio3 Reviews & Testimonials

Web Development Review from Irshad
I am very happy about how Folio3 gives 100% in the work dedication and has a very organized and energetic team who thrive with innovative ideas for our business. We are still using Folio3 on a regular basis and also get excellent updates from any usage left so that we can utilize our monthly allowance which is great teamwork.

Web Development Review from Mike Do
Whether it’s a new development, update or maintenance – Folio3 always shines through. Their turnaround time is always stellar, it’s a pleasure to work with them.

Software Development Review from Stewart Kelly
They have helped us manage and execute the bulk of the engineering work necessary for integrating with our partners in the Airline, Car and Hotel verticals.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCertified E-Commerce Development Company
Certified E-Commerce Development Company...
Top Services:
- eCommerce Development
- Web Development
- IT Services
- Web Design
- Mobile App Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 16 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDinarys Services
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Dinarys Reviews & Testimonials

eCommerce Development Review from André Schörnig
We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!

Web Development Review from Nissrine Kohen
Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow.Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working.They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent.All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.
Nina Liashuk's Review Sourced from Google
Smooth, reliable cooperation every step of the way. They're quick to respond, easy to work with, and consistently deliver strong results. Their reliability and the quality of support have stood out the most. A team we would recommend without hesitation.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPromising the exposure you deserve!
We dont just develop applications; we build lasting partnerships that evolve software to keep our clients competitive and innovative. Since 2009, MobiDev has helped over 400 businesses in the US, Canada, Europe, and Israel build, modernize, and scale their products for todays dynamic market...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Web Design
- VR/AR
- Show more
- Location
- Sacramento, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMobiDev Services
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MobiDev Reviews & Testimonials
Raymond Ferrara's Review Sourced from Google
I have retained Mobidev on three different projects over a period of four years. Mobidev was and is an excellent technical partner in all respects.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSimplify Every Software Product Interface
Pepper Square is a digital innovation agency that blends strategy, design, and technology to deliver intuitive digital products and experiences. The agency specializes in UI/UX design, web and mobile app development, digital strategy, and creative solutions tailored to enterprise and mid-market clients. With...
Top Services:
- Mobile App Development
- Web Design
- Software Development
- UI/UX Design
- Branding
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPepper Square Services
Data sourced from the agency's DesignRush profileMicrosoft Honeywell Airbnb Texas Instruments Saatchi & Saatchi CISCO AIG Bosch Wipro Ketchum
No-Code, AI, UI/UX Design, and Custom Development
Aspirity is a web development agency with a representative office in San Francisco CA. Founded in 2011, we provide dedicated teams for extension startups and midsize companies. Our services include full stack web and mobile development, UI\UX and product design...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAspirity Services
Data sourced from the agency's DesignRush profileSchibsted Media Group Arctic Group Shoreline.io
Building Products That Change the Future of Businesses
BL3NDlabs is an end-to-end strategy, design, and technology firm. We redefine the way business gets done with industry-standard and emerging technologies...
Top Services:
- Software Development
- Digital Services
- Web Design
- Product Design
- Creative Services
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBL3NDlabs Services
Data sourced from the agency's DesignRush profileMiaMia chanje Agentology Scalematrix Westpak CAGIX IES Fulcrum Ocean Park Inn SDG&E
Designing and Building Platforms for Your AI Bot Development.
ISBX (Interactive, Strategy, Branding, Execution) stands as the premier web and mobile application development agency in Southern California, boasting extensive expertise across a diverse spectrum of digital services such as Mobile, Blockchain, IoT, Web3, and Web Development. With a track record of...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Blockchain
- IoT
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsISBX Services
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ISBX Reviews & Testimonials
Peggy McCabe's Review Sourced from Google
ISBX is a very professional and talented web development company. The overall experience I had with them in the redesign of our website was outstanding. They were extremely creative, provided viable options at all junctures, and delivered on time and on budget. ISBX also provided a very hands-on, and professional team who understood our need for brand engagement and outreach to a new audience with our website refresh. The team also optimized the new site for mobile usage which was very important to us. ISBX successfully executed our complex project efficiently, with excellent communication and attention to detail at every step. I wouldn't hesitate to work with them again.
Kim Farley's Review Sourced from Google
ISBX helped us from concept to launch without any issues. They were communicative, patient, and able to quickly implement solutions to project changes that came up along the way. We appreciate that they took the time to hold our hands with explanations and detailed questions to make the process as stress free as possible and to get a good understanding of our product.
Tony Alfaro's Review Sourced from Google
I've been a client of ISBX for nearly three years. They are hands down the best development firm I have ever worked with. They are on budget and on time consistently. They are trustworthy, highly communicative, and very versatile. Nothing is in the "too hard box" for them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDigital products. Done beautifully.
Wve Labs is a digital product company bringing strategy, design, and engineering together to create mobile apps, web platforms, and custom software. Since 2015, we have partnered with startups, growth companies, and global organizations to design, build, and scale digital products...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- Product Design
- Web Development
- Show more
- Location
- Costa Mesa, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWVE Media Services
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WVE Media Reviews & Testimonials
Brayden Yarbrough's Review Sourced from Google
Working with Wve Labs has been an outstanding experience. Their communication is exceptional—they keep me informed throughout every stage of the process and are always quick to answer questions and provide thoughtful feedback.The app design has exceeded my expectations, and they consistently stay on track with the timelines they set. What really sets Wve Labs apart is their ability to brainstorm and collaborate. They don't just build my app—they help refine my ideas, offer creative solutions, and provide valuable insights that continue to make the final product even better.It's clear that their team consists of true experts in digital product development. Whether it's strategy, design, or technical execution, they bring a level of professionalism, creativity, and expertise that's hard to find. I'm excited to continue working with them and highly recommend Wve Labs to anyone looking for a development partner that genuinely cares about the success of their project.Founder, GameDay Bites
delaney day's Review Sourced from Google
I have had the pleasure of working at Wve Labs for over a year now, and it has been an absolutely amazing experience. The leadership is dedicated to ensuring each employee’s success and is highly focused on the company’s growth. Being part of such a dynamic and diverse team with a fantastic client base makes me proud.The company offers numerous opportunities for professional development, and the collaborative atmosphere encourages innovation and creativity. Every day presents new challenges and learning opportunities, making the work both engaging and fulfilling.Additionally, Wve Labs prioritizes community involvement and social responsibility, frequently organizing events and initiatives that give back to society. This comprehensive approach not only enriches our corporate culture but also instills a sense of contributing to a larger cause.In conclusion, my time at Wve Labs has been extremely fulfilling, and I look forward to the future as we continue to grow and innovate together.
Jack Joyce's Review Sourced from Google
Working at Wve Labs has been an incredible experience, and I can't speak highly enough about the company's atmosphere and culture. From the moment I joined, I was welcomed into a collaborative and supportive environment where creativity and innovation are not just encouraged but celebrated.The culture at Wve Labs is one of inclusivity and respect. Every team member's ideas are valued, and there's a strong sense of camaraderie that makes coming to work each day a pleasure. The leadership team is approachable and genuinely cares about the growth and well-being of every employee, fostering a workplace where people feel motivated to do their best.Wve Labs truly excels in creating a positive and dynamic work environment. The office is buzzing with energy, driven by passionate individuals who are dedicated to delivering top-notch results. The company also offers numerous opportunities for professional development, which has allowed me to expand my skill set and grow in my career.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCreating amazing software products!
CognitiveClouds is a custom software product and consumer app development company with a reputation for excellence in creating tailored software solutions...
Top Services:
- Mobile App Development
- Software Development
- IoT
- AI Development
- eCommerce Development
- Show more
- Location
- Fremont, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCognitiveClouds Services
Data sourced from the agency's DesignRush profileWalmart Sony Yahoo UBS Volkswagen Mahindra Electric Katerra
Innovating One Product at a Time!
Kwanso, recognized as a top 5 mobile company by Silicon Review, is a team of expert designers, developers, machine learning engineers, and consultants dedicated to building exceptional digital experiences...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- eCommerce Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKwanso Services
Data sourced from the agency's DesignRush profileWhirlpool Craftsman Gladiator Kenmore RealREPP TrueReview College Advisor BioMarker Uptok Bushnell
Kwanso Reviews & Testimonials
Full Circle Healthcare Solutions's Review Sourced from Google
Although I have responded to be removed from this person‘s spamming emails, they still continue to email me over and over again. This is borderline rude and an excusable since I have responded to those emails to be opted out. Regardless of the business the way that you represent it is not how I do business. Normally I don’t leave responses but after three or four times of receiving the same emails when requesting to be opted out I figured this was the best place to post.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDesign What You Want To Use
Asymm is a software design and development company with headquarters in San Diego. The company specializes in the creation of mobile and hybrid web applications. We develop products and provide solutions for customers in a wide variety of business sectors and market verticals. Delivering goods that assist our...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAsymm Services
Data sourced from the agency's DesignRush profileSotheby's International Facilitron Lady M Now Insurance Cannon Safe Preverity NAPS
Asymm Reviews & Testimonials
Alexandra Ranney's Review Sourced from Google
Ari and his team have been an absolute pleasure to work with. Very professional, timely responsiveness, transparency with pricing, and skilled at making my idea come to life. Would recommend to anyone seeking a full stack developer particularly if this is your first foray into building a technology business and/or tool.
Andre Nordan's Review Sourced from Google
Working with Ari and Asymm has been a great experience. We plan to continue using a variety of their services. They have been instrumental in our product development and delivered on everything we discussed before becoming a customer. Would strongly recommend for anyone searching for software development, design, or any other related services.
Ethan Lew's Review Sourced from Google
I love working with Asymm. They development great work and really communicate their ideas and stages of the project well. I’ve worked with Ari and the team on multiple website and apps. They really care about the work they do and it shows.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsThe best Next.js & Sanity agency
Roboto Studio is a Next.js and Sanity agency in San Francisco. We build headless content platforms for companies that have outgrown their CMS, so marketing teams can publish without waiting on a developer. Recent work includes Tray.ai, Topaz Labs and Slingshot Bio...
Top Services:
- Web Development
- Web Design
- UI/UX Design
- eCommerce Development
- AI Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRoboto Studio Services
Data sourced from the agency's DesignRush profileTabby.ai Tray.ai Global Cycling Network Teckro
End-to-end digital product design and engineering.
End-to-end digital product design and engineering for enterprises and premium brands...
Top Services:
- Branding
- Mobile App Development
- Software Development
- AI Development
- Design Services
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsL+R Services
Data sourced from the agency's DesignRush profileMeta The Estée Lauder Companies OceanX Hilton Worldwide UNICEF ATP Tour Louis Vuitton Amazon GE Footlocker
Engineering Intelligent & Scalable Solutions.
VentureDive is an award-winning custom software development company dedicated to spearheading digital transformations for Fortune 500 companies across BFSI, CPG/retail, healthcare, transportation, logistics, and QSR industries through its expertise in the realms of Fintech, Data & AI, HealthTech, PropTech...
Top Services:
- AI Development
- Software Testing
- Software Development
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- Mountain View, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVentureDive Services
Data sourced from the agency's DesignRush profileCareem Unilever DNOW Islamic Finder Roland Berger Kaizen Google McKinsey & Company Droobi Kashat
Fast & Easy Technical Launch for Your Startup
We are a reliable team to develop your idea within the deadline and budget. We share your business value, that's why we are really keen on launching your Proof of Concept ASAP, so you get funded and come to us again for further development...
Top Services:
- Software Development
- IT Services
- Blockchain
- Location
- Redwood City, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCodemotion Services
Data sourced from the agency's DesignRush profileTrastra Zero1 Fastvan Invotra Cloudwith.me Linkry Events RunBuggy Xpolog Prospectlinked Tactoom
Innovative Software Development
TopDevz is an innovative software development and technology delivery partner that brings your ideas and visions to life quickly and cost-effectively by giving you direct access to elite software development experts located throughout the United States and Canada who are rated at the top 1% of their skill...
Top Services:
- Software Development
- Mobile App Development
- IT Services
- Product Design
- Show more
- Location
- Sacramento, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $145/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTopDevz Services
Data sourced from the agency's DesignRush profileUnder Armour Expedia KPA Kraft
TopDevz Reviews & Testimonials
Peter Burns's Review Sourced from Google
It's my first time working with Topdevz and so far I am impressed. They presented me with 3 resources in less than 10 days, my team successfully interviewed them and they started on our project a mere 18 days after I first contacted them on their website. I can only hope their work will be as good as their staffing is efficient.
Maryrose Rhone's Review Sourced from Google
You'll meet some smart, professional and dedicated people at TopDevz. Their developers are really good at integrating an existing team and help lead complex projects. Their pricing is quite competitive for US resources and their services are well worth the investment.
Bruce Schaaf's Review Sourced from Google
I've worked as a contractor for several firms over the years. TopDevz really stands out above the others. They stay deeply involved throughout the project, maintaining regular communication with both client and contractor. This level of engagement really changes the nature of the project, making it a team-oriented approach rather than a simple contractor placement. This helps the project keep on track and insures that the contractor will keep busy. The people at TopDevz are all very friendly and helpful and I've been very happy working there.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted by Leading Brands
We work with startups and enterprise clients to create amazing mobile apps that users love, across iPhone, iPad, Android and the Web...
Top Services:
- Mobile App Development
- Web Design
- Web Development
- UI/UX Design
- IoT
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinixSoft Services
Data sourced from the agency's DesignRush profileUdely.com bubblesu.com pezo.land
Results Driven Strategies
Facet Interactive is the go-to digital strategy agency. Our data-driven insight helps clients focus on higher-yield projects while we ensure strong returns through integrated marketing campaigns. We can step in as your product owner or CMO to provide direction when it comes to making informed product and...
Top Services:
- Web Development
- AI Development
- Software Development
- IT Services
- CRM Consulting
- Show more
- Location
- El Segundo, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $199/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFacet Interactive Services
Data sourced from the agency's DesignRush profileAmber Road ROA Neuroedge drupalconnect
Custom Software for Businesses
Consider us an extension of your team and your technical co-founders, the highly qualified engineers who will create, develop, and maintain the software systems required to power your idea...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- IoT
- Blockchain
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCoreware Group Services
Data sourced from the agency's DesignRush profileIBM Magellan Jets Omnicharge Rug Doctor Mercedes Benz
Coreware Group Reviews & Testimonials
Cris Nuñez's Review Sourced from Google
The system is user-friendly, intuitive, and easy to learn. To further enhance its capabilities, it would be beneficial to adopt certain processes from other clients. We would also like to extend our appreciation to Ranie and Steph for their continuous support and valuable assistance whenever clarification is needed.
Joshua Kaiser's Review Sourced from Google
Jeremiah was very helpful is resolving a concern we had with our Corefire website. He was able to swiftly offer resolution to keep our website functioning as intended. Thanks Jeremiah and Coreware team! :)
Brad and Resilient Rebecca's Royal Cruises's Review Sourced from Google
🌟🌟🌟🌟🌟 Phenomenal Support from Mark at Coreware! Mark from Coreware delivered a top-tier customer service experience that deserves applause. He didn’t just answer our questions—he jumped into action, proactively coordinating with the billing department to ensure our payment method update went through without a hitch. Mark’s professionalism, responsiveness, and clear communication made what could’ve been a frustrating process feel seamless and stress-free. If every company had a “Mark,” support calls would be something to look forward to. Huge thanks for helping us keep our subscription running smoothly!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTop App Development Agency
We help brands design and build superior digital products, enabling seamless user experiences only at the best Mobile App Development Company...
Top Services:
- Mobile App Development
- Cloud Consulting
- DevOps Consulting
- AI Development
- Big Data Analytics
- Show more
- Location
- Berkeley, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsApp Maestros Services
Data sourced from the agency's DesignRush profileBed Bath & Beyond Amazon FedEx DreamWorks WhiteCastle Walmart Kohls Politicos Data Stream Artizone
App Maestros Reviews & Testimonials
David B's Review Sourced from Google
I want to share my experience so others are aware of the tactics this company uses. I was first contacted via an unsolicited spam text message promoting app development services. I had never heard of this business before, nor did I request any information from them. To see who was really behind the spam, I replied with a simple question about app pricing. The next day, I was contacted directly by this company.What was most concerning is that they tried to claim I had emailed them asking for their services — which is completely false. I never sent them an email or initiated any legitimate contact. The only reason they had my information was because of their own spam outreach. This is both misleading and dishonest.Professional companies do not need to resort to spamming strangers or fabricating stories about how potential clients found them. This type of behavior demonstrates a serious lack of transparency and integrity. If a business cannot be upfront and honest during the very first interaction, it raises major red flags about how they would handle a client’s project, communication, data, and money over time.Based on my experience, I cannot recommend this company. Trust is one of the most important parts of choosing a development partner, and unfortunately, their conduct showed me they are not worthy of that trust. I strongly advise anyone considering working with them to be cautious and look elsewhere for reputable professionals.
Ruth Carlson's Review Sourced from Google
App Maestros is an efficient source for developing optimal applications as their designed app for my delivery business is nothing short of splendid with innovative features and an intuitive interface. Many thanks to them.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Software Development Companies in California by City
Related Services in California
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Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
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.
- Criminal Justice: Legal outcomes or profiling.
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