Top UI/UX Companies in California
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List of the Best UI/UX Agencies and UI/UX Professionals in California
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
376 Companies
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SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Business solutions, tailor-made.
LANEX Corporation is a full-cycle software development company delivering custom digital products for startups and global enterprises. With deep expertise across Node.js, React, Angular, Laravel, .NET, Java, Flutter, Kotlin, and cloud platforms including AWS and Kubernetes, LANEX builds scalable, secure solutions tailored to each client's technology requirements and business objectives. Serving industries from banking and healthcare to retail, logistics, and energy, their agile teams bring domain-specific knowledge that accelerates delivery and reduces risk. LANEX's end-to-end offering—from UI/UX design through to post-launch support—ensures digital products are not only technically sound but built to elevate brand credibility and deliver exceptional user experiences at scale.
View LANEX Corporation Profile$25-$49/hr
$25,000+
50 - 249
San Francisco, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We build brands and products that rethink sports
This LA-based software and branding agency is uniquely positioned at the intersection of technology and the sports industry, partnering with elite brands including the LA Dodgers, Diamond Kinetics, EL1, PWHL, and Epicore Biosystems. Specializing in product and brand strategy, high-performance marketing websites, and native mobile development, the agency delivers digital experiences built specifically for the demands of sports organizations, sports tech companies, and performance brands. With a deep understanding of athlete-focused technology and fan engagement platforms, their team brings category-specific expertise that generic agencies simply cannot replicate. For sports brands seeking a technology partner who understands the industry from the inside, this studio offers an unmatched combination of technical capability and domain credibility.
View Robin Profile$150-$199/hr
$50,000+
10 - 49
Los Angeles, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Software and Product Development Company
4 Way Technologies is a premium IT services company specializing in business-critical web, mobile, and Smart TV application development, with offices in the USA, Australia, and India and a team of 100+ developers. Born cloud-native and operating in a fully Agile delivery model, 4 Way Technologies is an early adopter of OTT and live streaming platforms—making them a trusted development partner for major media companies. Their open-source technology stack (Java, JavaScript, Node.js, Angular, AWS) combined with OWASP-certified security practices ensures every application is built for performance, scalability, and enterprise-grade security. With transparent project management via JIRA and Trello, 4 Way Technologies delivers offshore software development with full visibility and zero compromise on quality.
View 4 Way Technologies Profile$50-$99/hr
$1,000+
50 - 249
Fremont, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Complex Checkout Framework and Custom Integration Engineers
Tivix is a prominent digital product engineering company specializing in complex custom software architecture, advanced transactional workflows, and deep API integrations for enterprise D2C merchants. Their massive engineering squad builds bespoke checkout microservices, high-speed product mapping engines, and secure data routing platforms that operate alongside standard commerce systems. They integrate online channels directly with complex corporate supply chain software, automated multi-currency financial ledger modules, and localized global warehousing portals. Their technical builds provide high-volume direct-to-consumer enterprises with absolute data consistency and system uptime.
View Tivix Profile$100-$149/hr
$50,000+
50 - 249
San Francisco, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Digital marketing and web development that drives measurable growth
ATAK Interactive is a Los Angeles-based digital marketing and web development agency dedicated to helping businesses grow through strategic, data-driven digital solutions. The agency specializes in custom web development, UI/UX design, SEO, content marketing, and paid advertising, delivering integrated digital experiences that attract, engage, and convert customers. ATAK Interactive works closely with clients across industries including healthcare, legal, real estate, and professional services to build high-performing websites and marketing programs. The agency combines technical expertise with creative strategy to deliver measurable results and long-term digital growth for every client.
View ATAK Interactive, Inc. Profile$150-$199/hr
$5,000+
10 - 49
Los Angeles, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transforming schools and school systems by developing exceptional school leaders
New Leaders is a national nonprofit organization dedicated to developing transformational school leaders and advancing equity in K-12 education. Founded with a mission to ensure every student in America has access to excellent schools, New Leaders designs and delivers leadership development programs for principals, aspiring principals, and district leaders. The organization partners with school districts, charter management organizations, and state education agencies to build the leadership capacity required to improve student outcomes in high-need communities. New Leaders combines rigorous leadership training, coaching, and ongoing support to equip educators with the skills, knowledge, and mindset needed to lead high-performing schools and drive systemic educational change.
View New Leaders Profile$150-$199/hr
$25,000+
10 - 49
Truckee, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Delivering innovative IT solutions to fuel your digital transformation
Baymediasoft Technologies is a full-service IT and digital solutions company providing custom software development, mobile app development, web development, and UI/UX design services. The company serves clients across the US, UK, and global markets, helping businesses of all sizes accelerate their digital transformation journeys. Baymediasoft offers end-to-end development services from ideation and design to deployment and post-launch support, with expertise in technologies including React, Node.js, Flutter, iOS, Android, and cloud platforms. The firm is known for its competitive pricing, agile development methodology, and strong project management practices that ensure timely delivery of quality digital products.
View Baymediasoft Technologies Profile$25-$49/hr
$1,000+
50 - 249
Van Nuys, USA
2
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Innovative products from concept to launch
Nectar Product Development is a product engineering and industrial design consultancy specializing in medical devices, consumer electronics, and connected technology solutions. The company provides rapid prototyping, electronics engineering, embedded systems development, industrial design, and manufacturing support services that help startups and enterprises accelerate product commercialization. Nectar Product Development works closely with clients to create scalable MVPs, proof-of-concept prototypes, and production-ready products optimized for usability and manufacturability. Their multidisciplinary engineering teams combine hardware, software, and UX expertise to reduce development risks and shorten innovation cycles. The company supports projects from early ideation through engineering validation and manufacturing transition.
View Nectar Product Development Profile$100-$149/hr
$25,000+
50 - 249
Long Beach, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom web design and digital marketing that drives results
WebSight Design is a full-service web design and digital marketing agency helping businesses establish and strengthen their online presence. The agency provides custom website design, WordPress development, eCommerce solutions, SEO, and digital advertising services tailored to each client's industry and target audience. WebSight Design combines creative design with technical expertise and marketing strategy to build websites that not only look great but also attract, engage, and convert visitors into customers. With a client-first philosophy and a commitment to ongoing support and optimization, WebSight Design builds lasting relationships with businesses seeking a dedicated digital partner.
View WebSight Design Profile$100-$149/hr
$1,000+
10 - 49
Sausalito, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
The growth agency for hardware and tech startups
Rainfactory is a specialized growth marketing agency focused exclusively on hardware companies, consumer tech brands, and crowdfunding campaigns. Based in San Francisco, Rainfactory has managed over $100 million in ad spend and worked with some of the most successful Kickstarter and Indiegogo campaigns in history. The agency provides end-to-end growth services including paid advertising across Facebook, Google, and Amazon, email marketing, landing page optimization, conversion rate optimization, and full-funnel digital strategy. With deep expertise in the unique challenges of hardware go-to-market, Rainfactory helps innovative product companies build awareness, generate pre-orders, and scale direct-to-consumer sales channels efficiently.
View Rainfactory Profile$100-$149/hr
$1,000+
10 - 49
San Francisco, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Long-Term Support for Ruby on Rails Applications
We deliver custom web and mobile application development services, specializing in Ruby on Rails development. Our team handles the full lifecycle—from design and development to support and maintenance—building scalable, secure, and high-performance applications tailored to modern business needs.
View Ecliptic Ideas Profile$100-$149/hr
$100,000+
2 - 9
Coronado, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Amazing design creates incredible experiences
Guided by strong business ethics and customer-focused values, we deliver custom software and digital solutions tailored to each client’s technical and budget requirements. Instead of offering one-size-fits-all services, we focus on creating practical, scalable solutions that improve efficiency, support business goals, and maximize return on investment (ROI) for our clients.
View App Design Company Profile$50-$99/hr
$10,000+
10 - 49
Carlsbad, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Let's build awesome
SDI is a global software development company delivering innovative digital solutions to businesses for over 20 years. We specialize in custom software development, mobile app development, web design and development, and digital marketing services, helping organizations transform ideas into scalable digital products. Our team of 200+ certified professionals and 30+ UI/UX experts collaborates closely with clients to create tailored solutions that align with their business goals. With offices in California, Melbourne, and multiple locations in India, SDI has served 5,000+ clients worldwide and successfully delivered 2,000+ applications across industries including finance, education, healthcare, enterprise, social networking, and startups. Trusted by brands such as Pepsi, Stanford University, and Marvell, we focus on building high-performance applications, responsive websites, and growth-driven digital strategies that help businesses innovate, scale, and compete in today’s digital landscape.
View SDI - Software Developers Inc Profile< $25/hr
$1,000+
50 - 249
Saratoga, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Turning ideas into powerful digital solutions
MindK is a global software development and IT consulting company that helps businesses build digital products, modernize legacy systems, and optimize technology infrastructure. Headquartered in California with engineering teams across Central and Eastern Europe, MindK delivers scalable, cloud-driven solutions for startups and established enterprises. The company has collaborated with well-known organizations such as Adidas, Nokia, Paramount, Roblox, and Levels.fyi. MindK provides end-to-end services including product development, MVP and PoC creation, software re-engineering, cloud migration, IT consulting, and team augmentation. Their experienced engineers help organizations automate processes, rebuild legacy applications, and develop modern cloud-native platforms that improve performance and scalability. As a certified AWS partner, MindK specializes in building secure, high-performance cloud solutions tailored to business goals. The team applies Agile development practices, proactive project management, and strong quality standards to ensure predictable delivery and long-term success. MindK has particular expertise in industries such as healthcare, e-learning, recruitment and HR technology, and energy and sustainability, helping companies innovate faster and create impactful digital solutions.
View MindK Profile$50-$99/hr
$25,000+
50 - 249
San Francisco, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
An AI Agent Engineering Company
Kwanso is a leading design and development consultancy specializing in bringing product visions to life. With over a decade of experience, we have successfully partnered with Fortune 100 companies, startups, digital agencies, and mid-sized enterprises. Acting as a trusted technology partner, we provide agile, high-performing teams to deliver projects on time and within budget. Our expertise spans web and mobile app development, UI/UX design, generative AI solutions for enterprises, Internet of Things (IoT) applications, and comprehensive QA testing. Kwanso empowers businesses to innovate, scale efficiently, and create impactful digital products that drive measurable results.
View Kwanso LLC Profile$25-$49/hr
$25,000+
50 - 249
San Francisco, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Driven by technology, designed for people, built to last
We are a results-driven technology company based in California, specializing in cloud transformation, custom software development, and big data analytics. By combining advanced engineering with data-driven insights, we help businesses scale efficiently and achieve measurable growth. Our expertise spans cloud security, mobile app development (iOS & Android), software testing, and IT consulting. We also provide end-to-end cloud migration services and analytics solutions to optimize operations and drive informed decision-making. Focused on innovation and execution, we deliver scalable, secure, and high-performance digital solutions that empower businesses to stay ahead in a competitive marketplace.
View Jaxel Profile$50-$99/hr
$5,000+
50 - 249
Pleasanton, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Form Follows Function
IMRepublic, founded in 2005 with offices in San Francisco, CA, and Belgrade, Serbia, is a full-stack software development and design agency delivering tailored digital solutions for businesses of all sizes. We specialize in custom software development, enterprise systems, and process optimization to help clients achieve measurable growth. Our client-focused approach combines assessment, design, development, and optimization. We collaborate closely with your team to align technology solutions with business goals, leveraging the latest globally-adopted frameworks and languages while respecting your existing infrastructure. From backend, frontend, and middleware development to complex enterprise integrations, our experienced team advises on the most efficient technology stack to maximize ROI. Whether you need custom software to solve unique business challenges or enhancements to existing systems, IMRepublic provides agile, reliable, and scalable solutions that drive results and streamline operations. We are committed to client success, delivering innovative, high-quality software that boosts performance and revenue.
View IM Republic, Inc Profile$50-$99/hr
$5,000+
10 - 49
San Francisco, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Let's build something great together.
Plus8Soft is a global software development company helping startups and enterprises build, scale, and modernize digital products using cutting-edge technologies and flexible engagement models. Our distributed team of engineers, product experts, and project managers delivers high-quality, cost-effective solutions across industries. We go beyond coding—acting as a true technology partner by aligning with your goals, integrating with your workflows, and providing strategic insights that accelerate product success. From MVP development and team augmentation to legacy system modernization, we deliver scalable, future-ready solutions. With a strong focus on Agile development, transparency, and continuous improvement, Plus8Soft ensures predictable delivery and measurable outcomes—empowering businesses to innovate faster and grow with confidence.
View Plus8soft Profile$25-$49/hr
$5,000+
50 - 249
Palo Alto, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web & Mobile Development for High-Growth SaaS
We deliver professional web and mobile development services designed to scale with your business. Our team specializes in building high-performance SaaS platforms, custom web applications, and cross-platform mobile apps that drive growth and efficiency. Our Expertise: SaaS and full-stack web development Cross-platform mobile app development Third-party API integrations and system connectivity Modern, responsive UI/UX design MVP development and product discovery Software architecture and digital consulting Dedicated development teams and team augmentation QA, testing, and ongoing support With years of experience delivering enterprise, analytics, and custom solutions across multiple industries, our skilled developers ensure reliable, scalable, and future-ready products backed by clear communication and technical excellence.
View InterCode Profile$50-$99/hr
$5,000+
10 - 49
Fair Oaks, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Unleash Agility: Your Trusted Partner for Outsourcing
Native DevOps is a global digital transformation partner delivering advanced software development, mobile applications, and scalable web solutions. With 7+ years of experience and over 250 successful projects, we help startups, SMEs, and enterprises modernize operations and accelerate digital growth. Our expertise spans UI/UX design, custom software development, and full-stack engineering using modern technologies like React, Angular, Vue.js, Node.js, and Golang. We build high-performance mobile apps for iOS and Android using Swift, Kotlin, and cross-platform frameworks such as Flutter and React Native. We also specialize in web and CMS development (PHP, Laravel), Progressive Web Apps (PWA), and next-gen solutions including Web3, blockchain, and NFT platforms. Our eCommerce capabilities cover Shopify, WooCommerce, and Shopware, delivering conversion-focused online stores. In addition, we offer flexible staff augmentation models to scale your development team efficiently. Partner with Native DevOps to leverage innovative, secure, and future-ready digital solutions that drive efficiency, enhance user experience, and deliver measurable business results.
View Native DevOps Profile$25-$49/hr
$5,000+
10 - 49
Los Angeles, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Where AI transforms ideas into intelligent, future-ready experiences
Asapp Studio is a digital product development company focused on creating engaging, user-centric applications that turn users into loyal customers. We specialize in building high-performance mobile apps (iOS and Android), web applications, and desktop solutions designed to deliver exceptional user experiences and measurable business results. Our approach combines UX/UI design expertise with strong engineering practices to craft intuitive, visually appealing, and scalable products. We go beyond functionality—focusing on user behavior, seamless interactions, and brand alignment to ensure your product stands out in competitive digital markets. From idea validation and product strategy to design, development, and launch, Asapp Studio provides end-to-end services tailored to your goals. We work closely with clients to understand their vision and translate it into impactful digital solutions that drive engagement and retention. With a commitment to quality, innovation, and collaboration, Asapp Studio acts as a true technology partner—helping businesses build memorable digital experiences that strengthen brand identity and support long-term growth.
View Asapp Studio Profile$50-$99/hr
$5,000+
10 - 49
Temecula, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
We design and build your digital vision
Falcon Marketing is a Los Angeles-based full-service online marketing and web development agency founded in 2012. The agency serves small and medium businesses across diverse industries, helping them expand their online presence, increase digital revenue, and build recognizable brands. Falcon's core capabilities include responsive web design, mobile app development for iOS and Android, custom software development, branding and logo design, search engine optimization, pay-per-click advertising, social media management, and conversion rate optimization. The agency is known for hiring specialized marketing and development professionals and maintaining high standards of craftsmanship. With over a decade of experience, Falcon Marketing prides itself on making client businesses household names through data-driven digital strategies.
View Falcon Marketing Profile$50-$99/hr
$5,000+
10 - 49
North Hollywood, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Web design and staff augmentation solutions for growing businesses
Cidersoft is a technology services company offering web design, web development, and IT staff augmentation to businesses seeking flexible, cost-effective digital solutions. The agency provides both project-based web design and development work and on-demand staffing to augment client technology teams with skilled developers, designers, and project managers. Cidersoft serves a broad range of industries, helping businesses modernize their digital presence and scale their technical capacity without the overhead of full-time hires. With a blend of creative and technical talent, Cidersoft delivers solutions that are practical, scalable, and aligned with each client's specific operational and growth needs.
View Cidersoft - Web Design & Staff Augmentation Profile$50-$99/hr
$10,000+
50 - 249
San Ramon, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Humanizing technology
RKS Design is a California-based product development and industrial design consultancy delivering innovative prototyping and engineering services for global brands. The company provides industrial design, user experience design, product strategy, engineering validation, and rapid prototyping services across healthcare, consumer electronics, and mobility industries. RKS Design uses human-centered design methodologies to help organizations create functional, scalable, and emotionally engaging products. Their teams support businesses through concept development, MVP engineering, manufacturing planning, and commercialization. The company focuses on innovation strategies that improve usability, market differentiation, and long-term product success.
View RKS Design Profile$150-$199/hr
$50,000+
50 - 249
Thousand Oaks, USA
1
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Etymology: Latin, literally, from the egg: from the beginning
Ab Ovo, Inc. is a Santa Clara, California-based IT consulting and staff augmentation firm founded in 2006, providing technology and operations solutions to Global 1000 companies. As a woman- and minority-owned business, Ab Ovo specializes in e-commerce platforms, cloud enablement, IoT, big data, business intelligence, automation testing, and enterprise application development and integration. The firm combines deep technical expertise with an understanding of client industries to solve complex business challenges with speed and agility. Ab Ovo's staff augmentation and software engineering services help organizations quickly scale technical teams while maintaining quality and adaptability to evolving business needs. With operations extending to the UK and India, the company supports clients across automotive, energy, eCommerce, financial services, manufacturing, medical, and retail sectors. Ab Ovo's productized applications and platforms are designed to accelerate digital transformation initiatives, making the company a reliable technology partner for enterprises seeking flexible, innovation-driven IT services and skilled technical talent.
View Ab Ovo, Inc. ProfileN/A
$1,000+
50 - 249
Santa Clara, USA
0
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Igniting Brand Potential Through Design, Web Development, and SEO Marketing
Brandastic represents a leading tier digital business engineering and commerce transformation firm specializing in building resilient, modern direct-to-consumer ecosystems. By deploying highly optimized web applications and customized cloud platform configurations, the technical group acts as a primary innovation catalyst for fast-scaling global enterprises. Their engineers focus closely on minimizing application layers, integrating decoupled or headless frontend architectures, and aligning complex enterprise resource planning data feeds directly to the custom checkout flow. Through careful optimization of user interaction mechanics, conversion-focused layout design, and programmatic data tracking frameworks, Brandastic ensures its commercial clients can capture direct zero-party data, scale effortlessly during sudden traffic surges, and maximize lifetime value among consumer segments. Ultimately, the organization bridges the structural divide between complex modern enterprise technology and intuitive brand storytelling architectures, crafting digital retail models that consistently produce higher margins and long-term customer loyalty.
View Brandastic Profile$150-$199/hr
$1,000+
10 - 49
Costa Mesa, USA
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