Need a blockchain development company in California to create smart contracts and facilitate decentralized transactions? We’ve studied many companies across the state to consolidate this list of innovators — to help businesses like yours connect with potential partners. Explore local providers across our directory and filter them by reviews, rates, budget, and more.
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 is the top mobile app development company in the US, creating innovative mobile applications that help businesses across industries increase efficiency, engagement, and sales. Our top mobile app developers utilize cutting-edge technologies to build high-performing, intuitive mobile solutions that...
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 ReviewsAccelerate Your Roadmap & Drive Innovation
At Rootstrap, we help companies scale people, processes, and products through outcome-driven development. We’ve helped launch more than 750+ digital products with more than 100 million combined downloads...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Software Testing
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $87/hr
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRootstrap Services
Data sourced from the agency's DesignRush profileWalletJoys MasterClass Ownable Generis TONY ROBBINS COACHING EMPIRE Merry Jane Google Opus Globalization Partners
Rootstrap Reviews & Testimonials

Enterprise Review from Bridget Garcia
We needed a new website for our business and we knew it was time to update the design and make it more user friendly. Rootstrap helped us create our site with all of the latest technology and they were very flexible in terms of our requests. Award winning work! Kudos.

Web Development Review from Ori Goldman
When I was looking to build my MVP I spoke to about 10 shops. Little did I know that I would still be working with that same company over 5 years later. Rootstrap built our MVP and we have stuck with them ever since. Through multiple pivots, design changes, thousands of implemented features, we still feel lucky that we found them 5 years ago.
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HTML5 Review from Pete Ghiorse
Rootstrap is the real deal. We've worked with them on our app from day one. From the first napkin sketch through V2 of our app, Rootstrap has been one of the most reliable value-producing companies I've ever worked with.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDecoding Innovation
MoogleLabs leverage AI/ML, Blockchain, DevOps,Low Code/No Code platforms, AI Testing and Data Science to come up with the best solutions for diverse businesses...
Top Services:
- AI Development
- Blockchain
- Software Development
- Mobile App Development
- IT Services
- Show more
- Location
- Emeryville, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMoogleLabs Services
Data sourced from the agency's DesignRush profileVoXXi Zanran Bitani
MoogleLabs Reviews & Testimonials

Business Consulting Review from Isla William
The client finds the MoogleLabs team awesome. Based on the requirements someone provides, MoogleLabs can help find the right technology stack and solution for the problem. The client recognizes its superb guidance for any newcomers within the development sphere. (Verified via email)

Business Consulting Review from Jennifer Turcios
We trusted Moogle to make the right suggestions and calls for our product. They quickly understood our business and how data could help our business units.

Business Consulting Review from Anna Prendiville
Moogle is [a] very fabulous company [that] provides big data analytics solutions to its customers. I have hired Moogle for my work, and they provided me [with] excellent work [...]. Highly recommend [the] company! (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Automate Critical Business Processes.
Nzouat is an Oakland, California based digital consulting and development studio founded by Chris Nzouat. The agency which typically works with small to mid-size businesses and startups offers full-stack web and mobile development, blockchain (smart contracts, NFTs, DeFi), AI/ML integration, and digital...
Top Services:
- Blockchain
- Mobile App Development
- Software Development
- AI Development
- WordPress Website Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNZOUAT Services
Data sourced from the agency's DesignRush profileAesthetic Lab Metroplex Multimedia Tony Alexander Election Campaign Aesthetic Studios Omega Health Clinics San Francisco Police Department (SFPD)
AI-ready Senior Engineers and Dedicated Teams in ~60 hours
Founder-led IT staff augmentation for small-mid companies. We solve problems you haven't fully scoped yet...
Top Services:
- eCommerce Development
- Software Testing
- AI Development
- Mobile App Development
- Software Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsUASOFTDEV Services
Data sourced from the agency's DesignRush profileDwelly Managed IT Experts Hazy
UASOFTDEV Reviews & Testimonials

DevOps Consulting Review from Khrystyna Sliana
We hired a DevOps engineer from UASOFTDEV to handle a multi-entity AWS infrastructure split. The project was completed on schedule, with zero downtime and great attention to security and data integrity. Recommended.

Dedicated Team Augmentation Review from Leonid Viktorov
I am the CEO of Biz Adviser, a business consulting company. We work with companies on strategic business initiatives, digital transformation, and improving business performance. We partnered with UASOFTDEV when we urgently needed additional engineering capacity. I was looking for proven senior developers and did not have time to spend weeks sourcing candidates and conducting multiple interviews. UASOFTDEV offered to provide vetted Ukrainian developers within 60 hours, which was exactly what we needed. The team provided senior engineers with strong technical expertise and excellent communication skills. We worked with developers across PHP, Node.js, Python, and React, depending on the project requirements. They were reliable, proactive, and able to understand not only the technical tasks but also the broader business context. The developers contributed to several important initiatives, including the implementation of an AI agent, and helped us move projects forward faster while keeping development costs under control. UASOFTDEV delivered what they promised. The process was straightforward, communication was reliable, and the developers were able to start working quickly without compromising on quality. The pricing was a good fit for our budget, and the overall value for cost was excellent. I also appreciated the cultural fit and the team's ability to communicate effectively and take ownership of their work. I would definitely recommend UASOFTDEV to companies looking for reliable staff augmentation with senior Ukrainian developers. They are a trustworthy partner that can provide strong engineering talent quickly and help businesses deliver important initiatives without the overhead of a lengthy hiring process.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsComplex custom software and AI-powered products built around your business.
Rocket Systems builds custom software and AI-powered products around real business needs. We take time to understand each clients goals and choose the right technical approach, creating reliable and scalable solutions with a strong focus on quality and long-term value...
Top Services:
- Web Development
- Web Design
- IoT
- AI Development
- Mobile App Development
- Show more
- Location
- Sacramento, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRocket Systems Services
Data sourced from the agency's DesignRush profileGrandTime Armroom Rafayel Narek
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 ReviewsAnmel Transforms_ Digital Success.
Anmel is proven to boost productivity by up to 60% and efficiency by 45% for startups and enterprises alike. Trusted by businesses globally, Anmel delivers tangible results, driving success and growth in today's competitive market landscape...
Top Services:
- AI Development
- Software Development
- IT Services
- Mobile App Development
- Wearables
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAnmel Services
Data sourced from the agency's DesignRush profileJPMC PL D&G
Anmel Reviews & Testimonials

Software Development Review from Brenda Benitez
Their expertise in custom software and mobile development allowed us to streamline our processes and boost productivity by 60%. The 1-Year Free Maintenance & Bug Fixing guarantee was a huge selling point, ensuring we had ongoing support and stability. With their award-winning, ISO-certified approach and a team of over 100 in-house experts, Anmel has truly elevated our business operations. Highly recommend them to any startup or enterprise looking for top-notch digital transformation services
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTurning Ideas Into Interactive Apps
AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...
Top Services:
- Mobile App Development
- Web Development
- eCommerce Development
- Software Development
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppCrops Services
Data sourced from the agency's DesignRush profileFluoSpeak Sellers Route Muslim Me Linkedly Stryde Planzee TRP Mobile
AppCrops Reviews & Testimonials
Nabula Warden's Review Sourced from Google
AppCrops built a CMS for us that easily integrated with our website. Easy to manage and flexible. It made content updates much simpler. Recommended group of developers 👍
Reverie Selah's Review Sourced from Google
We used AppCrops for web development services and the result exceeded expectations. The website is fast, modern, and aligns perfectly with our brand.
Hazel Lucas's Review Sourced from Google
We worked with AppCrops for mobile app development and had a great experience. The team was professional, responsive, and delivered a high-quality app for our business. Highly recommended for anyone looking for web or app development services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYour dedicated Digital Marketer.
Nicco Strategies can help! We are a Los Angeles based full stack digital marketing and blockchain consultancy firm that will digitally enhance and add value to your brand. You can count on us to create a tailored strategy that best suits you. It is our mission to ensure your business thrives to its fullest...
Top Services:
- Branding
- Digital Marketing
- Web Development
- Blockchain
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNicco Strategies LLC Services
Data sourced from the agency's DesignRush profileChino Tattoo Studio Ulta Beauty Midea Group Lucky Bean
We Build Tomorrow, Today
With 15 years of experience, we specialize in developing startups, cryptocurrency exchanges, cashback platforms, Telegram bots, and complex software solutions for clients across the USA and Europe. Our expertise guarantees tailored, high-quality solutions for diverse industries and business needs...
Top Services:
- Software Development
- Web Development
- UI/UX Design
- eCommerce Development
- Blockchain
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZavod-IT Services
Data sourced from the agency's DesignRush profileRoasUp Easy Lashes Delofon
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