All UX Design Firms in California
Halo Lab
5(12 reviews)Transforming your product idea into reality through custom design-driven development.
Highly recommendedTop awardedHalo Lab is an award-winning custom web app design and development company ⭐ Our team offers reliable, customized, and user-friendly solutions for your business. We transform your product ideas into reality with our expert, design-driven development approach. Let us bring your vision to life with our innovative and tailored services. WE ARE YOUR PARTNER IN: ✅ Enhancing user experiences with UI/UX design. ✅ Building your brand identity. ✅ Growing your online presence with website development. ✅ Creating smooth digital experiences with full-cycle web app development. ✅ Ensuring top-notch quality with QA. ✅ Boosting growth and visibility with SEO & marketing support. Let’s create your star with us.17 works in UX DesignLocated in Burlingame, United States (+5)From €5,000 for UX DesignWorked in Others (+18)Speaks English, Arabic(+3)51-200 membersDesignli
5(16 reviews)Building apps is hard... when you're distracted.
Top awardedWhen hiring an app or web development team to build custom software, one variable matters most: are the developers fully dedicated to your success , or are you one client of many? Designli brings together designers, engineers, and business minds into on-demand, dedicated product teams that pour themselves, full-time, into the success of your app or web-app initiative. Existing as your dedicated software engineering department, we'll work together to solve your most pressing business problems with custom software. How it Works, and What We Can Build: Designli designs, develops, and launches beautiful apps and web-apps that you'll be proud to own, with a process that makes sense. Most importantly, we'll do this with a team that is assigned full-time to your project. With a step-by-step process, we'll begin by creating a clickable simulation of the User Interface of your app or website, and a development-ready backlog with each feature defined, estimated, and ready to code. Entrepreneurs use this output for fundraising. Business leaders use it for internal buy-in and market validation. When you choose to move into Development, our staff will be assigned full-time to you, and this team will be composed of the disciplines you need. Left alone, designers will create art projects. Engineers will create science fair gizmos. Business minds will create spreadsheets. Your development team will include all three, singularly focused on your success. For more information and to see our extensive work portfolio, visit https://designli.coLooking for work in UX DesignLocated in Greenville, United States (+2)From €5,000 for UX DesignWorked in Banking & Financials (+9)Speaks English51-200 membersSynergy Labs
4.9(14 reviews)#1 Boutique App Development Agency
Highly recommendedTop awardedAt Synergy Labs, we believe that building a great app is more than just writing code—it’s about creating a digital experience that elevates your brand. Founded over six years ago, we’ve grown into a boutique development studio delivering over 50 custom projects for clients like Forbes Council , Minnect , and Clapper . Our journey started when our founder, Sardor, faced the same challenges as our clients: balancing quality with cost-effective development. That experience inspired us to create a smarter way to build apps—one that bridges the gap between the agility of freelancers and the bureaucracy of large firms. Our collaborative approach ensures you’re informed and in control at every step, with a dedicated team working as an extension of your business. What Sets Us Apart: Fixed Cost : One upfront price covers your project from start to finish—no surprises, just clarity and peace of mind. Dedicated Team : A single point of contact and a dedicated developer focus solely on your project, ensuring a seamless and personalized collaboration. Your Build, Your Ownership : Everything we create—from the code to the hosting—is entirely yours, offering long-term scalability and control. Our expertise spans custom mobile apps for iOS and Android , as well as web applications , all designed with your unique vision in mind. Whether you need a membership app like Forbes Council’s, an expert marketplace like Minnect’s, or a dynamic social platform like Clapper’s, we’re here to help you stand out. Let’s connect and explore how we can bring your vision to life or check us out at: www.synergylabs.co1 work in UX DesignLocated in Hartford, United States (+23)From €1,000 for UX DesignWorked in Hospitals & Healthcare (+4)Speaks English, Arabic11-50 membersTRIARE
4.9(11 reviews)TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.1 work in UX DesignLocated in Fairfax, United States (+3)From €10,000 for UX DesignWorked in Hospitals & Healthcare (+18)Speaks English, Ukrainian51-200 membersRHILLANE Marketing Digital
4.9(117 reviews)Grow Big, Grow Right.
Highly recommendedTop awardedChez RHILLANE Marketing Digital, nous ne faisons pas que promouvoir votre marque : nous révélons tout son potentiel. En tant qu'agence de marketing digital 360°, nous avons accompagné plus de 615 clients à travers le monde, généré +50 millions de dollars de chiffre d’affaires pour nos clients, et géré +15 millions de dollars en budgets publicitaires. Avec des bureaux à la fois au Maroc et en Californie, aux États-Unis, nous sommes fiers de servir une clientèle internationale en apportant des solutions personnalisées et performantes. Des résultats qui parlent d’eux-mêmes. Avec 280 clients Meta Ads, +80% de nos campagnes affichant un ROAS supérieur à 7, et un taux de satisfaction de 96%, nous transformons les ambitions de nos clients en succès mesurables. Nos services vont de la création de sites web élégants et intuitifs, au SEO qui propulse vos classements, en passant par des campagnes publicitaires Meta, Google, et TikTok ultra-ciblées. Chaque stratégie est conçue pour capter l’attention, générer des conversions, et fidéliser vos clients. RHILLANE Marketing Digital est bien plus qu’une agence digitale : nous sommes votre partenaire de croissance. Grâce à nos outils de pointe, notre créativité audacieuse et une expertise ancrée dans les données, nous accompagnons nos clients pour surmonter leurs concurrents et atteindre des sommets. Rejoignez les entreprises qui ont déjà transformé leur présence en ligne avec nous. Votre succès commence ici.1 work in UX DesignLocated in Torrance, United States (+2)From €1,000 for UX DesignWorked in Legal Services (+18)Speaks English, Arabic(+2)11-50 membersWPRiders
4.8(3 reviews)Your mission critical web design, development, & maintenance partner
Is your website and digital footprint mission critical? Then not just any agency will do. Yes, we’re new on SortList, but you’ll find more 5-star reviews than you could read in a day on other sites. Banks, tech companies, and other serious firms with large user bases choose WP Riders for the technical expertise and 24/7 maintenance & reliability their team and customers deserve at an SMB-friendly price point. Founded just after WordPress launched in 2014 by a Computer Science Ph.D. that built the agency his previous business always wanted, WP Riders now serves businesses large and small across the globe as a trusted addition to the team. While our 1500+ 5-star reviews are impressive, it’s our culture that drives long term relationships. Accountability, integrity and innovation are core to our approach. Our Services: Design: Starting from an idea? Or maybe you’re further along and have wires frames or a clickable prototype. Wherever you are on your path to launch, we’ll be happy to integrate with you team and bring your project to launch on-time, on-budget and with the delightful experience your customers deserve. Development: Already have a design? Perfect. We can translate that into a WordPress site or other popular frameworks. Need feature that simply don’t exist? We count true software developers among our team and have our own R&D practice. You may already be using plugins we built. Whether you need a custom plugin, API integration, or even full mobile or No-Code-Low-Code application, we’re the team to bring it to life. Maintenance: Downtime can kill revenue and reputation. Getting hacked is often even worse. We have decades of cybersecurity experience and understand how various frameworks we support work from the code to the surface layer. And we developed our own monitoring protocol in case someone tries something totally new. Our team provides 24/7 monitoring and response capabilities. Are We the Right Digital Infrastructure Partner for You? Let’s find out together. Gather your dreams or frustrations…or both. We’ll wipe out the frustrations and then work towards the dreams. Then book a free consultation with our friendly team. We look forward to hearing what you want to accomplish and sharing how we can help you get there. Book a Free Consultation: https://wpriders.com/hopes-and-dreamsLooking for work in UX DesignLocated in Lausanne, SwitzerlandFrom €1,000 for UX DesignWorked in Clothing & Accessories (+8)Speaks English, French(+1)11-50 membersRhillane
5(22 reviews)Grow Big, Grow Right.
Highly recommendedTop awardedAt Rhillane, we don’t just market your brand—we ignite its full potential. As a full-service digital marketing powerhouse, we’ve helped over 615 clients worldwide, delivering +50 million dollars in client revenue and managing 15+ million dollars in ad spend. From dynamic web design and UI/UX to game-changing SEO, social ads, 2D/3D animation, and lead-generating email campaigns, our multidisciplinary experts ensure every aspect of your online presence works together to drive extraordinary growth. Our results speak louder than words. With 280 Meta Ads clients, a proven track record of +80% campaigns achieving a ROAS of 7 or higher, and a 96% client satisfaction rate, we combine cutting-edge tools, creative brilliance, and deep analytics to create tailor-made campaigns that don’t just attract clicks—they build connections. Whether it’s crafting scroll-stopping social content, executing high-ROI ad campaigns, or designing sleek, user-focused websites, our work is designed to captivate, convert, and keep your audience coming back. At Rhillane, we’re more than a digital agency—we’re your growth partner. With us, you gain access to bold ideas, strategic expertise, and a team passionate about pushing your brand to new heights. Join the ranks of top-performing businesses we’ve transformed, and let’s write your success story together. Your breakthrough starts here.Looking for work in UX DesignLocated in Torrance, United States (+2)From €1,000 for UX DesignWorked in Education (+16)Speaks English, Arabic(+2)11-50 membersLinnify
5(8 reviews)Simplifying life through innovation.
Top awardedLinnify is an awarded global technology partner , founded in 2016, with offices in Europe and the U.S. We empower visionary companies to accelerate digital product development . Faster, smarter, and more reliable than thought possible. From growing startups to established enterprises, we help turn bold ideas into scalable, user-centered digital solutions that drive measurable business impact. Our cross-functional teams deliver end-to-end capabilities in: - product strategy and validation - UX/UI design - custom software development (web and mobile) - AI and machine learning development - data engineering - cloud-native solutions - XR (AR/VR) applications - team augmentation Our validation-driven development approach ensures every product is aligned with actual market needs , minimizing risk while accelerating time-to-market. With a proven track record of building 80+ digital products across industries such as healthcare, logistics, education, automotive, and pharma , Linnify is present through strategic partnerships in major tech hubs like Austin, Berlin, and London. Our commitment to quality has earned us global recognition, including FT1000 ranking, Clutch Top 100, and ISO 27001 certification. Whether you’re seeking an AI development partner, looking to validate a product idea, or scaling your development capabilities, Linnify delivers with agility, transparency, and lasting impact through dedicated product teams. Let’s simplify life through innovation. Together.Looking for work in UX DesignLocated in Austin, United States (+1)From €5,000 for UX DesignWorked in Education (+9)Speaks English, Romanian11-50 membersNinja Promo: A Subscription-Based Marketing Agency
5(36 reviews)Crystal-clear hourly billing and hundreds of marketing and creative experts at your disposal.
Top awardedWant to give your brand a boost in visibility, traffic, conversions, sales, and ROI? Take a look at our free marketing plan right here: https://ninjapromo.io/contact We're NinjaPromo and we're obsessed with helping brands like yours scale their marketing without the pain of hiring freelancers or dealing with detached agencies. As a Marketing-as-a-Service (MaaS) company, we’re your one-stop-shop for all things digital marketing. We give you access to the top 1% of marketers and creatives worldwide all for one monthly fee. We lift your brand higher with our multi-channel marketing, branding, and all things creative design. We're passionate about building brand identities, creating visually stunning content, and using the best and the latest tools and techniques to get your brand out there. We know how to make your social media buzz, get your SEO on point, create ads that actually get clicked, reach out to influencers, write emails that get opened, handle your PR, produce videos that tell your story, and design and develop websites that visitors love. And that's just scratching the surface. Here’s a snapshot of our services: SEO PPC SMM Influencer Marketing Email Marketing PR UX/UI Content Creation If you want to join the 250 ambitious brands that are already jump-starting their growth with our subscription-based model, then have a chat with our team today.Looking for work in UX DesignLocated in New York, United States (+7)From €1,000 for UX DesignWorked in E-commerce (+22)Speaks English201-500 membersMetaLogics
(0 review)Empowering Your Business
MetaLogics is a Custom Software Solutions Provider. We empower businesses with innovative design and development services, crafting targeted solutions for startups to enterprise-level. Our collaborative approach leverages skilled professionals and cutting-edge technology to deliver high-quality products, from MVPs to full-scale applications. Our Services include: Mobile App Design & Development Web Design & Development Custom Software Design & Development Software Requirement Documentation UX/UI Design Graphic Design Project Management IT Consultation Why Choose Us? Dedicated Project Teams: We assign you a team of experienced professionals who become an extension of your own. Deep Client Insights: Through in-depth analysis, we gain a comprehensive understanding of your business and target audience, ensuring your product thrives in the market. Seamless Collaboration: We foster a collaborative and approachable environment throughout the entire development process, keeping you informed and involved. End-to-End Solutions: From establishing brand guidelines to launching your exceptional product, we offer all the services you need under one roof. Ongoing Support: Our commitment extends beyond launch, with dedicated after-sales support to ensure your product's continued success. Have a groundbreaking concept? We'll be your tech co-pilot!3 works in UX DesignLocated in Lahore, PakistanFrom €3,000 for UX DesignWorked in Restaurants (+6)Speaks English11-50 members