Top 100 JavaScript Development Companies in San Francisco

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Top 100 JavaScript Development Companies in San Francisco

September 2023

Looking for a top JavaScript developer in San Francisco?

If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. 

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List of the Best San Francisco JavaScript Developers

  • 1
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.

    Clients

    • Toptal clients include J.P. Morgan
    • Zendesk
    • Artsy
    • IDEO

    Industries

    Notable Project

    Toptal developed the app and branding of a sports betting aggregator and scoring engine. The project's main goal was achieving growth for the client company.

    "They went above and beyond."

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  • 2
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

    Clients

    • ClassPass
    • ZEFR
    • Gain Capital (forex.com)
    • Merkle

    Industries

    Notable Project

    Vention provides staff augmentation services to a SaaS solutions provider. The scope includes software and feature development and maintenance across the product line.

    "They are all developers capable of delivering their responsibilities."

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  • 3
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    AirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development. 

    Clients

    • HP
    • Lenovo
    • CVS
    • Chevron

    Industries

    Notable Project

    Airdev has built a customized platform for a digital creator marketplace. The team has worked on features such as account creation, product listing and selling, Stripe API integration, portals, and dashboards.

    "I'm impressed with their helpful and communicative team and their direct approach to design."

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  • 4
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Mayven is a San Francisco based software design and development company. They were founded in 2015 and have a team of 25 employees. They specialize in web, custom software, and eCommerce development for enterprise and midmarket clients.

    Clients

    • Andreesen Horowitz
    • Segment
    • Lightspeed Venture Partners
    • Pachama

    Industries

    Notable Project

    Mayven Studios provides design and development for a broadcast media company’s podcast marketplace platform. They’ve built the platform using Laravel and now improve it and offer support and maintenance.

    “They’re one of the most efficient companies I've seen in their use of time and money.”

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  • 5
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • San Francisco, CA

    ArcTouch was founded in 2008 and has offices in San Francisco, Calif., New York, and Florianópolis, Brazil. They excel at app development, blockchain, and UX/UI design. They guide their enterprise clients through the app building process by defining a strategy for the best user experience, planning the visual design, developing and testing the prototype, and ensuring optimization and growth.

    Industries

    Notable Project

    ArcTouch has developed a mobile application for McCormick & Company. They created the app’s UI/UX design using Figma and Flinto. ArcTouch has also developed the app’s iOS and Android versions.

    “ArcTouch’s UI/UX design is great, and they’ve developed a delightful app that users enjoy.”

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  • 6
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • San Francisco, CA

    UPQODE is a website design and development agency based in Nashville, Tennessee. Founded in 2015, the team of 40+ specializes in web development, web design, and e-commerce development. They work with small businesses, focusing on information technology, e-commerce, and business services.

    Clients

    • Think Tank Team - Samsung Research America
    • SAA - Spondylitis Association of America
    • AmeriFreight Inc.
    • DOXO Inc.

    Industries

    Notable Project

    A landscape management company absorbed another business and needed to redirect their website to the updated site. UPQODE redirected the website and provided web design updates to incorporate the new branch.

    "It was a smooth experience, and we would definitely use them again."

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  • 7
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Oakland, CA

    Founded in 2021, Nimi Tech Limited is a small software development firm based in Oakland, California; Colombo, Sri Lanka and Chennai, India. Their services include custom software development, web development, mobile app development, IT staff augmentation, and more.

    Industries

    Notable Project

    Nimi developed various features for a banking services provider's product. They worked directly with the product engineering and QA teams to support the platform and automate tests.

    "Their leadership was so attentive; I felt like they were my partners."

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  • 8
    • $50,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.

     

     


     

    Clients

    • Retail: Walmart
    • Target
    • JCPenney
    • Victoria's Secret

    Industries

    Notable Project

    A tech company has hired Robosoft Technologies to perform manual and automation testing. The team is also tasked with executing regression and ensuring the sanity of the production environment.

    "They did deliver their tasks on time and without any issues."

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  • 9
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Founded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development. 

    Clients

    • West Elm
    • AARP
    • Georgetown
    • J Crew

    Industries

    Notable Project

    SF AppWorks designed, developed, and deployed a new website for a healthcare company. The site showed condition-specific content ad was integrated with the client's lead capture and email marketing systems.

    "Each team member at SF AppWorks is skilled at their role."

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  • 10
    • Scheduling

      3.6
    • Quality

      3.7
    • Cost

      3.7
    • NPS

      3.7
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Berkeley, CA

    Founded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields. 

    Clients

    • Stripe
    • Copper CRM
    • Aura
    • Airbus

    Industries

    Notable Project

    Crowdbotics has provided mobile app development and marketing services for a wedding planning agency. They have built features into the client's app and helped market it accordingly.

    "They were knowledgeable and cared about my idea as much as I did."

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  • 11
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Roonyx is a web, mobile app, and AI development company founded in 2008 that caters their services to small business and midmarket clients. They have a team of nearly 30 employees who provide services from Moscow and Boston. They focus on the business services, automotive, and e-commerce industries.

    Industries

    Notable Project

    Roonyx developed Android and iOS applications for a game development company's end client. Roonyx designed the app's prototype and developed it using Flutter. The app helped couriers manage their routes.

    "Everything was done well and, at times, even above our expectations."

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  • 12
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • San Francisco, CA

    Cylogy Inc. Is a website development firm. They are located in San Francisco, California and have a small team that provides web development, application management & support, digital strategy, IT strategy consulting, and more. The company was founded in 2001.

    Industries

    Notable Project

    Cylogy Inc. helped a mobile communications tech provider design and develop a website. They were actively involved in architecture, HTML/CSS production, plug-ins, content migration, QA testing, and launching.

    "They had excellent customer service."

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  • 13
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • San Francisco, CA

    Wunderdogs is a brand agency based in San Francisco with more than two professionals. Since their founding in 2017, they have offered branding, marketing strategy, and web design solutions to clients in the industries of financial services, IT services, and more.

    Clients

    • Shell
    • Kraken
    • Aza
    • IBM

    Industries

    Notable Project

    A real estate company hired Wunderdogs to provide web design. Using Figma as their main tool, Wunderdogs designed the platform from scratch based on their professional input and the client's needs.

    ''Wunderdogs’ team was patient, open to our changes, and committed to delivering something we were comfortable with.''

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  • 14
    • $10,000+
    • 2 - 9 employees
    • Oakland, CA

    State Creative is a web design and development company located in Oakland, CA. Founded in 2000, State Creative's team of nearly 10 employees also offer e-commerce development. They serve small and mid-market businesses in the business services, finance, and consumer products industries.

    Clients

    • MarsVenus
    • Pinnacle Claims Management
    • Sakura of America
    • Sakura of America

    Industries

    Notable Project

    State Creative provided web development services for an engineering firm. They helped build, design, and launch a new website from scratch using WordPress as the platform.

    "They were very organized."

    Visit Site
  • 15
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • Oakland, CA

    Kalamuna is a web development and design agency founded in 2012. They have 15 employees based in their Oakland, Calif. office. The bulk of their services focus on full-service web development, from visual design to server-side operations. Kalamuna also offers custom software development and digital strategy consulting.

    Clients

    • American Foundation for the Blind
    • Fair Trade USA
    • Smithsonian Institution
    • Environmental Defense Fund

    Industries

    Notable Project

    Kalamuna redesigned a nonprofit organization's existing website to support their rebranding efforts. This involved developing a content strategy and handling UX research, design, and implementation.

    "We chose to work with them because of their care and values around supporting mission-driven nonprofit organizations."

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  • 16
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Headquartered in San Francisco, Wizeline is a global technology services provider with delivery centers in Mexico, Colombia, Spain, and Vietnam. Since its founding in 2014, Wizeline has grown to over 1,300 employees specializing in product/platform development, UX design, data & AI, cloud & DevOps, and product evolution services.

    Clients

    • Fitz Frames
    • AirAsia
    • Arc XP
    • Car Rental Company (CRC)

    Notable Project

    Wizeline was hired to develop a web dashboard that displays user-friendly, behavioral data. The team used a requirement document and mockups to build the dashboard. 

    "The salesperson acted as an attentive project manager."

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  • 17
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Techlexity is a small custom software development firm. Located in L'viv, Ukraine and Los Angeles, Glendale, California, the agency was founded in 2019. Their services include custom software development, web development, mobile app development, blockchain, and more.

    Industries

    Notable Project

    Techlexity created an Android and iOS mobile app for a mobile detailing startup using React Native. The team integrated backend profile-building tools into the app and provided hosting and maintenance.

    "They exhibited outstanding collaboration throughout the project."

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  • 19
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Midsize website development company Cheetah Agency, is based in Dallas, Texas; Doylestown, Pennsylvania; Atlanta, Georgia and Austin, Texas. Established in 2006, the team specializes in web development, search engine optimization, marketing strategy, social media marketing, and more.

    Industries

    Notable Project

    Cheetah Agency has helped an organic bath and body products company craft their identity and online presence from scratch. Their work has included naming, branding, packaging design, and e-commerce development.

    "The commitment to quality was palpable, not only in the final deliverables but also in the processes they followed."

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  • 20
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Galliot is a San Francisco-based software development firm founded in 2018. With an additional office in Montevideo, Uruguay, their 10-man-team develops products for midmarket and enterprise-level clients. While custom software and DevOps are their specialties, they also offer web development and cloud consulting.

    Clients

    • Life science
    • Biotech and Pharma
    • DevOps and Cloud Services
    • iOS and Android Applications

    Industries

    Notable Project

    Galliot has helped a software development company migrate their cloud infrastructure to Kubernetes, renewing their technology stack. Now, they also provide backend development services.

    “Throughout the whole project, Galliot has brought their expertise to our software development processes.”

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  • 21
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • San Francisco, CA

    Launched in 2020, Apex Lab is a software development company. Their small team is based in Tallinn, Estonia and San Francisco, California. Their team offers custom software development, mobile app development, web development, and enterprise app modernization.

    Notable Project

    Recart developed a messaging bot that allowed e-commerce brands to convert customers to subscribers through email marketing. The team used React, Node.js, microservices, and Kubernetes to create the platform.

    "Thanks to them, everyone was motivated and driven by the product’s success."

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  • 22
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 10 - 49 employees
    • San Francisco, CA

    This California-based software company has strong expertise in web and mobile app development. The team of less than 50 has worked in various industries, from fitness to healthcare – they’ve done it all.

    Clients

    • Google
    • Nike
    • Adobe
    • Twilio

    Industries

    Notable Project

    Impekable was hired to build a completely custom platform for an educational and brand fundraising marketplace. They completed a Magento site.

    "Impeckable made things right and fulfilled the agreement."

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  • 23
    • $50,000+
    • 10 - 49 employees
    • San Francisco, CA

    Dayspring Technologies is a custom software and web development firm founded in 1997. They have just under 30 employees based in their San Francisco office. Much of their work focuses on custom software development for in-house platforms, but they also build client-side web apps, user interfaces, and e-commerce platforms.

    Clients

    • American Red Cross
    • BSN Sports
    • Fund for Shared Insight
    • Golden State Warriors

    Industries

    Notable Project

    Dayspring Partners (formerly Dayspring Technologies) is redesigning a community college’s career services pages to improve user flows. They refined the layout, added new pages, and incorporated attractive visuals.

    "I’m impressed with their creativity and recommendations."

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  • 24
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 2 - 9 employees
    • Oakland, CA

    HyperArts is a website design and development company based in San Francisco, CA. HyperArts' intimate team of nearly 10 people specializes in website design, development, and maintenance, as well as UX/UI design for WordPress and Drupal sites. They mainly serve small business clients.

    Clients

    • Crossroads Trading Co.
    • Autodesk
    • Eventbrite
    • Crossroads Trading Co.

    Industries

    Notable Project

    HyperArts designed and built a custom WordPress site with a theme from start to finish. The agency also integrated the site with Pinterest and worked on another project requiring a plugin and blog.

    "We are so very pleased with the website. The pleasure is ongoing."

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  • 25
    • $5,000+
    • 10 - 49 employees
    • San Francisco, CA

    Thomas Digital Web Design is a web design agency based in San Francisco. The agency, founded in 2010, is a team of less than ten that provides web design, web development, and SEO services to small and midmarket companies.

    Clients

    • California Olive Ranch
    • Zircon Tools
    • Association of Montessori International
    • Cloudleaf

    Industries

    Notable Project

    Thomas Digital built a legal services website, designing it to be SEO-optimized. Based on the internal team's input, they created content that would best serve the target audience and worked to attract readers.

    "I feel like I got excellent value and that they did everything they promised."

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  • 26
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.3
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • San Francisco, CA

    Grio is a software consulting firm based in San Francisco, Calif, that was established in 2008. Their team of 50 employees offers web development, mobile app development, and UX/UI design services.

    Clients

    • Rivals.com
    • Fitbit
    • Texture
    • Neustar

    Industries

    Notable Project

    Grio worked on two projects- building an iOS app and solving crashes and ANRs for an IT company's Android app.

    "The team is competent, timely, and consistently doing what’s right for their customer."

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  • 27
    • Scheduling

      4.4
    • Quality

      4.8
    • Cost

      4.4
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • San Mateo, CA

    AGIMA is a mobile app development company. The midsize Istanbul, Turkey-based company was established in 2005. Their team focuses on mobile app development and web development.

    Clients

    • Mars
    • Leroy Merlin
    • Mercedes
    • McDonald's

    Industries

    Notable Project

    IMAGA developed a system to track users' purchase path for a group travel company. They also recommended changes to the client's website.

    "IMAGA has a highly flexible team that has adapted to our requirements and approach."

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  • 28
    • $5,000+
    • 2 - 9 employees
    • San Mateo, CA

    Cider is a software development company located in San Francisco. Founded in 2015, their 5 employees provide software development, marketing, and web design services to ecommerce clients. 

    Clients

    • HP
    • Procter & Gamble
    • Nike
    • and other. Case studies can be found here: https://bit.ly/2VY1XiJ .

    Industries

    Notable Project

    Cidersoft - Web Design & Development was hired by a coaching consultancy to upgrade their site. They developed and implemented new functionalities into the client's site and provided site maintenance support.

    "The brand book that they developed for us was impressive."

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  • 29
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Orinda, CA

    Based out of Orinda, CA with satellite offices in India and Croatia, Daxima is a software development company. The team of more than 50 employees has been in business since 2003. They provide web, software, and mobile app development for clients around the world.

    Clients

    • T-Mobile US
    • Cisco Systems
    • Savi Technology
    • Berry Appleman & Leiden

    Industries

    Notable Project

    Daxima helped develop and implement a more robust client management system, capable of data aggregation, external program integrations, widespread use, and business growth.

    "If the team didn’t have an answer, they’d get back to us, and do it quickly. We were never left hanging."

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  • 30
    • $5,000+
    • 10 - 49 employees
    • San Francisco, CA

    Siddhi Infosoft is a web and mobile app development company based in San Francisco, with a secondary location in Ahmedabad, India. Siddhi Infosoft was founded in 2011 and has 25 employees. Services offered by this company include mobile app development and web development for companing ranging from startups to Fortune 500 brands.

    Clients

    • DizzyDoctor
    • GHN
    • Sylky

    Industries

    Notable Project

    Siddhi Infosoft provides ongoing mobile app development for a health consulting services company. The team repaired the first version of the client's mobile app while working on the platform's second version.

    "Siddhi Infosoft has been more than capable of handling this project and working together with us and our clients."

    Visit Site

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