We’ve researched and ranked the best California HTML5 mobile app development agencies that build sophisticated and high-quality apps that help brands drive more loyal customers and sales. Compare listings by past work, reviews, cost and size to pick the best fit for you.
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.
United States × California × HTML5 Mobile App Development × Sort by: Number of Reviews ×Clear Filters
Aiming to Achieve Your Business Goals Through Technology
Code Genesis is a full-stack development company dedicated to building scalable and secure digital platforms. We combine expertise in cloud, automation, and modern software engineering to create solutions that are both innovative and reliable. Our mission is to deliver technology that not only meets todays...
Top Services:
- Mobile App Development
- Software Development
- UI/UX Design
- AI Development
- DevOps Consulting
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
Transforms Digital Idea Into Reality
Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Design Services
- Product Design
- Show more
- Location
- Signal Hill, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $22/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Health Tech and Managed IT Services Company
TechMatter is a leading global provider of technology and healthcare solutions headquartered in Glendale, California. The company specializes in enterprise software development, automation, and revenue cycle management, empowering organizations to streamline operations and achieve sustainable growth. With a...
Top Services:
- Digital Services
- Design Services
- UI/UX Design
- Web Development
- Affiliate Marketing
- Show more
- Location
- Glendale, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $100/hr
Building the new era of digital growth
Nova Era is a digital solutions agency built to merge creativity with innovation, offering web and app design, development, video production, automation, and customized AI tools. The focus is always on building smarter systems that help businesses work seamlessly and communicate with impact.What defines the...
Top Services:
- Web Design
- Web Development
- eCommerce Development
- UI/UX Design
- Mobile App Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Lukasa is a next-gen consulting partner helping organizations transform through data modernization,
Custom Software that Actually Works the Way You Do...
Top Services:
- Business Consulting
- Software Development
- AI Development
- VR/AR
- ERP Consulting
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
Take Charge Of Your Business Continuity
ACUBE USAL LLC is a US registered custom Software development company delivering solutions in web, mobile & AI-driven solutions to companies across the US, Europe and Australia. We have proven experience in delivering solutions into education, healthcare, real-estate, E-commerce, logistics, food compliance...
Top Services:
- Mobile App Development
- Location
- Nevada City, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
You Think We Will Deliver
TechMave Software LLP delivers innovative web, mobile, and AI solutions tailored to business needs. Our team combines creativity, technology, and strategy to build impactful digital products that empower brands globally...
Top Services:
- Design Services
- eCommerce Development
- Web Development
- AI Development
- Mobile App Development
- Show more
- Location
- Mountain View, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $11/hr
- Minimal Budget
- $10,000 - $25,000
Where Creativity Meets Excellence
USA Design Expert delivers creative, high-quality design solutions from logos to websites that help your brand stand out...
Top Services:
- Graphic Design
- Logo Design
- Web Design
- Web Development
- SEO
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Proven Excellence Through Custom Web Design and Development Services.
Allusive Digital is a creative and marketing agency that helps businesses grow through branding, web design, content development, and digital marketing. The agency blends thoughtful strategy with polished creative execution to help clients increase visibility, strengthen their identity, and connect with their...
Top Services:
- Web Development
- eCommerce Development
- Web Design
- WordPress Website Design
- AI Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
Reimagining Software Development
Beehive is a new production model for software development (the world's first we should add) that fuses AI precision with human ingenuity. A model of collective intelligence that breaks projects into microtasks, routing them to global experts, and delivering production-ready, high quality, code faster than...
Top Services:
- Web Development
- Software Development
- AI Development
- Mobile App Development
- IoT
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
Honest, Practical, & Focused On Results
Founded in 2005 in Reading (UK) Naxtech is a Digital Agency focusing on helping businesses grow, increase profitability, while attracting new customers via the effective use of technology and digital marketing...
Top Services:
- Web Development
- Digital Marketing
- Mobile App Development
- SEO
- Content Marketing
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Professional Mobile App Development Services
Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission...
Top Services:
- Mobile App Development
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Strategy, design, engineering, and AI
Bay Area Coders is a San Francisco-based product and engineering studio working with venture-backed startups and growth-stage companies since 2016. We combine strategy, design, engineering, and AI to help teams ship real products and modernize existing ones...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- AI Development
- Design Services
- Show more
- Location
- Roseville, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
We build websites, SaaS platforms & AI solutions that help ambitious brands launch, scale, and grow
Creexio is a modern software and digital agency headquartered in Irvine, California.We help startups, founders, and fast-growing brands build high-performance digital products - from conversion-focused websites and custom SaaS platforms to Shopify stores, AI integrations, and legacy app...
Top Services:
- Digital Strategy
- Branding
- WordPress Website Design
- Web Development
- eCommerce Development
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
White label & clone app development company
CloneAppz delivers white label and clone app solutions that help businesses go live faster. We combine proven technology with smart customization to give you a platform that genuinely represents your brand and supports real growth...
Top Services:
- Mobile App Development
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
Human + AI-built websites, optimized to get cited by ChatGPT and ranked on Google
AI-FTW is a US based AI agency building fast, modern websites for Los Angeles businesses booking systems, online stores, AI chatbots, internal dashboards. What sets us apart: we don't stop at ranking on Google. We optimize every site to get cited by ChatGPT, Perplexity, Claude and Google AI Overviews, since...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- eCommerce Development
- SEO
- Show more
- Location
- Santa Monica, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- Under $1,000
Design Against Cognitive Friction
Internauts is a Neurodigital design studio that helps organizations create brands and digital experiences built around how people actually think, feel, and make decisions. The studio combines branding, UX/UI design, accessibility, AI-aware experiences, and cognitive design principles to reduce friction and...
Top Services:
- Branding
- Logo Design
- Product Design
- Web Design
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $350/hr
- Minimal Budget
- $10,000 - $25,000
Movya is a technology company specializing in AI solutions, custom software development, web and mob
Movya helps businesses turn ideas into intelligent digital solutions through custom software, AI-powered automation, and modern web and mobile applications. We focus on building scalable, user-friendly products that simplify operations, enhance customer experiences, and support long-term business growth...
Top Services:
- AI Development
- Software Development
- CRM Consulting
- Digital Marketing
- SEO
- Show more
- Location
- Jurupa Valley, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $18/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 20 Projects Listed
We Build Digital Products, Experiences, And Systems that Matter.
Born West is a creative tech agency. We turn ambitious ideas into working software from inception to launch. Our senior strategists, designers, and engineers work as one team to shape digital products, AI-powered tools, platforms, and experiences that are thoughtful, scalable, and built to ship...
Top Services:
- Product Design
- Web Design
- eCommerce Development
- Web Development
- WordPress Website Design
- Show more
- Location
- Concord, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
We Bring The Tech. You Get The Wins.
Teamvoy is an AI engineering and transformation partner. We help companies make smarter technology decisions and turn them into production-ready software...
Top Services:
- Software Development
- AI Development
- Design Services
- Web Design
- UI/UX Design
- Show more
- Location
- Covina, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Your trusted technology partner for AI, cloud, product engineering, and digital innovation.
At Saguna Consulting, we work alongside businesses to create, build, and improve digital products powered by the latest in AI, cloud computing, and modern software engineering. We provide businesses with innovative, scalable technology solutions, helping to overcome tough business problems, boost operational...
Top Services:
- Digital Services
- UI/UX Design
- Web Development
- Digital Marketing
- AI Development
- Show more
- Location
- Irvine, California
- Number of Employees
- 50 - 99
- Minimal Budget
- Under $1,000
Engineering Intelligent Systems That Scale
We help businesses transform complex technology challenges into scalable, production-ready AI, software, and cloud solutions. From intelligent automation to enterprise-grade platforms, we build high-performing systems that scale with your business and deliver measurable, real-world impact...
Top Services:
- Web Design
- Web Development
- eCommerce Development
- AI Development
- Mobile App Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
Best AI Marketing Agency
Cubitrek is an AI-first marketing and engineering agency. We get brands discovered in Google and in AI answers through SEO, AEO, GEO, and automation...
Top Services:
- Digital Services
- Graphic Design
- eCommerce Development
- Web Design
- Web Development
- Show more
- Location
- Sacramento, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Digital Experiences, Websites & Software Built for Business
Netpace designs and develops websites, digital products, web applications, mobile apps, and custom software for businesses across industries. Our work combines thoughtful UI/UX, modern engineering, scalable technology, and AI capabilities to create digital experiences that are intuitive, functional, and built...
Top Services:
- Web Development
- eCommerce Development
- Web Design
- Software Development
- AI Development
- Show more
- Location
- San Ramon, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 5 Projects Listed
Fluent In Digital. Focused On Impact
We empower businesses / non-profits / communities with powerful technology solutions that shape their future...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- eCommerce Development
- Blockchain
- Show more
- Location
- Bakersfield, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Turn Visibility Into Customers
LoudFace is a full-stack organic growth agency for B2B SaaS and fintech, with AI visibility measured per engine. We run GEO, SEO, AEO, content, and conversion to get companies discovered across Google and AI search. We implement across your stack when the program needs it...
Top Services:
- Branding
- Design Services
- Digital Strategy
- Web Development
- AEO
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Design that eats
Memeador is a product design collective that believes design should earn attention. We take on work only when we can make it win and we say so when we can't. Our members are senior practitioners who act as strategic partners, bringing rigor, taste and humanity to products people actually love...
Top Services:
- Product Design
- Web Development
- Mobile App Development
- AEO
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Connecting Equipment. Enabling Smart Manufacturing.
eInnoSys delivers semiconductor equipment connectivity and smart manufacturing solutions, helping fabs and equipment manufacturers integrate SECS/GEM, MES, automation, AI-driven monitoring, and Industry 4.0 technologies for more connected and efficient operations...
Top Services:
- Software Development
- AI Development
- IoT
- Mobile App Development
- Software Testing
- Show more
- Location
- Fremont, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
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