Our expert analysts researched and ranked the top California responsive website design companies that build professional mobile responsive websites that rank higher on search engines. You can use our filter to personalize your search and select the best partner based on rates, reviews, size and location.
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.

ZERO NEGATIVE
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.Boutique studio creating tailored web experiences.
Reach for the sky. We are Zero Negative. Your partner for innovative solutions. In a nutshell, Zero Negative is a boutique design and development studio, crafting responsive web experiences that captivate users...
Top Services:
- Web Development
- Web Design
- WordPress Website Design
- Branding
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZERO NEGATIVE Services
Data sourced from the agency's DesignRush profileMercedes-Benz United Nations Development Programme KFC Vodafone Foundation GS1 Conad Curative Biotech
ZERO NEGATIVE Reviews & Testimonials

Web Development Review from Jaroslav Tyman Jr.
We contacted Zero Negative about a two stage renewal of our company website with a very aggressive timeline for the first stage. Zero Negative worked and guided us through pulling off the first stage within our timeline while also ensuring that the content and ideas for that stage were readily applicable to the full design. When we got to the full design, they were fully responsible for corralling the various preferences and ideas from our team into a well executed cohesive site. We're now in a good spot and look forward to continuing to work with Zero Negative as our business and needs grow.

Web Development Review from Susan E. Roberts
Zero Negative did an exceptional job designing my website, roberts-communications.com. From the start, they understood that this wasn't just about aesthetics it was about positioning, credibility, and clarity for a senior-level communications brand.They translated a complex, high-stakes business into a site that feels polished, modern, and authoritative without being flashy or over designed. The process was collaborative, efficient, and thoughtful, and they were responsive to feedback while also offering smart guidance when it mattered.The final result reflects exactly how I want Roberts Communications to be perceived: strategic, sophisticated, and trusted. I would highly recommend Zero Negative to anyone looking for a design partner who understands brand, not just web building.

Web Development Review from Anonymous
These guys are the best! We engaged with Zero Negative to develop a comprehensive web-based system for our factory that allows for managing orders, processes, and inventory. This initiative was essential for us to secure a big ticket client. We truly could not have accomplished this without their assistance. They dedicated considerable time to on-boarding and collecting the requisite information, followed by prototyping the software, and ultimately developing it from scratch. Overall, we are very satisfied.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCloseloop is a renowned custom software development company in California, offering innovative software solutions to its clientele to meet modern digital trends. We specialize in custom software development, cloud solutions, web & mobile app development, and Salesforce and NetSuite implementation...
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
Idea Maker is a U.S.-based software development agency helping businesses transform ideas into scalable digital products. Our expert team specializes equally in mobile apps, custom software, AI-powered solutions, and modern web platforms...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Web Design
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
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
UXReactor Inc., headquartered in the San Francisco Bay Area, California, is a globally acclaimed consulting firm known for its excellence in user-centered design. Established in 2015 by two Harvard Business School alumni, the firm was built on a vision to scale the impact of user-centered design across...
Top Services:
- Product Design
- UI/UX Design
- Design Services
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 11 Projects Listed
Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth...
Top Services:
- Software Development
- Mobile App Development
- Web Design
- Web Development
- Staff Augmentation
- Show more
- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
From cohesive brand systems to high-performing websites, to data-driven marketing strategies and content that resonates with diverse audiences, we deliver scalable solutions that help you lead; whether you're a mission-driven startup, an investor, an enterprise, or a nonprofit...
Top Services:
- Branding
- Web Development
- Web Design
- eCommerce Development
- WordPress Website Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 25 Projects Listed
At Hidden Brains, we specialize in delivering state-of-the-art solutions meticulously tailored to our clients' specific requirements. Our comprehensive services include software development, IT consulting, wearable app development, and digital transformation, among others...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- Design Services
- Digital Services
- Show more
- Location
- Irvine, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Cozy specializes in delivering reliable creative support that feels like an extension of your team...
Top Services:
- Web Design
- Digital Marketing
- Graphic Design
- Web Development
- UI/UX Design
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $180/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 2 Projects Listed
Beardog Digital is a forward-thinking digital marketing agency based in Los Angeles, offering comprehensive solutions tailored to businesses' diverse needs. With a team of experts well-versed in the latest industry trends and best practices, the agency provides strategic guidance to clients struggling with...
Top Services:
- SEO
- Video Production
- Reputation Management
- Web Design
- UI/UX Design
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- Location
- Manhattan Beach, California
- Number of Employees
- Under 49
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Since 2009, 181 Creative Agency has been serving a wide variety of businesses and organizations with quality website design and accessibility services. We create responsive, user-friendly digital experiences that engage visitors while ensuring accessibility for all users...
Top Services:
- Web Design
- Creative Services
- Web Development
- eCommerce Development
- CRM Consulting
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Boomcycle Digital Marketing is a B2B Search Engine Optimization and Search Engine Marketing agency. We specialize in getting your message in front of your ideal prospects through our proven Intelligent Web Design and SEO processes. We are headquartered in the San Francisco East Bay, and work with clients here...
Top Services:
- Digital Marketing
- SEO
- PPC
- Web Development
- Web Design
- Show more
- Location
- San Ramon, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $25,000 - $50,000
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
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
Funkhaus is an independent, leadership-led Los Angeles digital agency that brings strategy, content, design, and technology together to build distinctive brands and digital platforms...
Top Services:
- Web Design
- Social Media Marketing
- Branding
- Content Marketing
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $300/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 4 Projects Listed
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
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