Top 100 JavaScript Development Companies in San Francisco

Need Help Selecting a Company?
  1. Home
  2. Web Developers
  3. JavaScript
  4. San Francisco

Top 100 JavaScript Development Companies in San Francisco

May 2022

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. 

Jump to Most Reviewed Companies

List of the Best San Francisco JavaScript Developers

  • 1
    • $25,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Headquartered in New York, iTechArt is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, iTechArt 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, iTechArt’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

    iTechArt Group is augmenting a pet food company’s development team. They work on several projects independently and with internal developers using Python, Vue.js, and Nuxt.js. 

    "They deliver strong code quality, high test coverage, and brilliant architectural design."

    Visit Site
  • Need help selecting a company?

    Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest analyst.

    Free consultation
  • 2
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 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 built and designed a healthcare company's frontend app. Their goal was to enhance the digital experiences the client offers to their customers. They now continue to improve the app's functions.

    "Working with them has been one of the best experiences I've had with an external partner."

    Visit Site
  • 3
    • Scheduling

      4.8
    • Quality

      4.8
    • 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 provides custom software development services for a branding and design firm’s clients. The team has worked on websites and applications from start to finish.

    “They are skilled, fast-paced, and trustworthy.”

    Visit Site
  • 4
    • Scheduling

      4.5
    • Quality

      4.6
    • Cost

      4.2
    • NPS

      4.7
    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 provided a senior software development resource to the client. They worked to build an online news terminal from scratch using WordPress, React, and AWS.  

    "It was a big success."

    Visit Site
  • 5
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Cybercraft Inc. is a development agency headquartered in Lviv, Ukraine, that was established 2012. Their team of 19 offers custom software development, IT staff augmentation, web development, and more. 

    Clients

    • Palo Alto Networks
    • Chime
    • 1Konnection

    Industries

    Notable Project

    CyberCraft Inc. was hired by a software design and development firm to help and assist them with their projects. The engagement supported more flexible and cost-effective development services for customers.

    "The developers are both professionals and nice people to work with."

    Visit Site
  • 6
    • $25,000+
    • 50 - 249 employees
    • San Francisco, CA

    Affle Enterprise is a 180+ team of mobile app and web developers based in Gurgaon, India, and Singapore. Founded in 2006, this end-to-end provider has created bespoke digital solutions for some of the world’s largest companies.

    Clients

    • Muthoot FinCorp Ltd.
    • McKinsey & Company
    • Amazon
    • BookMyShow

    Industries

    Notable Project

    mTraction Enterprise developed a retail startup’s D2C e-commerce platform. They used MERN and a proprietary product to build the site. They also helped in infrastructure management and customer acquisition.  

    "They guided us throughout the journey."

    Visit Site
  • 7
    • $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 developed a multi-page WordPress website for a consulting firm. The website contained more pages and spaces for the business’ services, case studies, and insights.

    “We had a fabulous experience with State Creative.”

    Visit Site
  • 8
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • 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 built an MVP for a business services startup. The goal was to launch a platform with a user-facing form-fill-out side and an admin side.

    "I suggest letting the customer decide when the project meets their specs."

    Visit Site
  • 9
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      5.0
    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

    A technology company hired Cylogy Inc. to supplement their development team. They helped with site replatforming during a major redesign, wrote front- and backend code, and helped with Sitecore integration.

    "They became part of our team."

    Visit Site
  • 10
    • Scheduling

      4.8
    • Quality

      4.8
    • 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."

    Visit Site
  • 11
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 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 the website of a research center. They improved the site’s UX/UI and usability, making it easier to update and edit. They provided a two-week warranty after the site’s launch.

    “It felt like we could trust their expertise and ability to deliver.”

    Visit Site
  • 13
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      4.6
    • NPS

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

    Tivix is a digital product development and design company headquartered in San Francisco, with offices across the US, UK, and Europe. Founded in 2008, they have over 90 employees who serve startup, midmarket, and enterprise clients across diverse industries such as FinTech, health care, manufacturing, government, and nonprofit. Tivix reduces engineering risk for clients by offering rapid time-to-market while delivering standards-based code that can be transitioned to an internal team at any time. Their focus is building both internal and consumer-facing digital products that drive business growth. Services include product management, UX/UI design, full-stack software engineering, and DevOps

    Clients

    • NATO
    • Apple
    • United Nations
    • Zoetis

    Industries

    Notable Project

    Tivix supported a software development project’s design phase for a device testing company. They mapped out requirements, gathered user stories, and produced data structures.

    "They were always on top of the engagement’s progress, and they always checked our availability."

    Visit Site
  • 14
    • $50,000+
    • 10 - 49 employees
    • San Rafael, CA

    A development company founded in 2005, Infinite Red, Inc. is based in Vancouver, Wash. Their team of fewer than 50 works in additional offices in San Rafael, Calif., servicing small to midmarket businesses. They offer web and mobile app development as well as web and UX/UI design services.

    Clients

    • Microsoft
    • Amazon
    • SquareSpace
    • BlueJeans

    Notable Project

    Infinite Red, Inc. developed a mobile app for an events company. The app is compatible with iOS and included several functionalities, including messaging and payment. The team’s deliverables have been largely successful and impressive to internal stakeholders.

    “I’ve been tracking the activity on the builds that they’ve delivered for me and have been pretty satisfied with the quality of work and the engagement we’re getting as a result of it.” — Founder, Events Platform

    Visit Site
  • 15
    • $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."

    Visit Site
  • 16
    • 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."

    Visit Site
  • 17
    • 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 developed a WordPress site and complex backend database for a hospital quality and patient safety consultancy. The database gathers content from several sources to create a compendium on the site.

    “They came through for us every time and were excellent at meeting last-minute deadlines.”

    Visit Site
  • 18
    • $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 Web Design was hired by a PR Firm to redesign and refresh the Firm's website from scratch, optimizing it for mobile display. The new website improved the Firm's web presence at par with that of larger firms.

    "Thomas Digital has given my small business the opportunity to enjoy a big business web presence at a small business price." - Owner, PR Firm 

    Visit Site
  • 19
    • $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

    Cider developed a website platform that was easy for the business owner to use, but also ensured that it was responsive to users while providing all of the needs of the business. The client was happy with the level of service provided. 

    "I wasn't sure what platform I wanted to use but they made the process simple and we went with WordPress.” – Owner, Small Business

    Visit Site
  • 20
    • 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 developed a website for a lighting design and manufacturing firm to showcase their products. They linked the site to a Shopify store. The team continues to provide web support and consulting services.

    “Grio has provided a great support system.”

    Visit Site
  • 21
    • 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."

    Visit Site
  • 22
    • $10,000+
    • 10 - 49 employees
    • San Francisco, CA

    Camp Creative is a digital marketing and branding agency headquartered in Berkeley, Calif., with another office in Bend, Ore. With a team of around 20, Camp Creative specializes in web design, graphic design, and UX/UI design.With Camp Creative's help, sales increased.

    Clients

    • ABB
    • Adobe
    • Bay Alarm
    • Bayer Healthcare

    Industries

    Notable Project

    Camp Creative provides marketing services including video production, SEO and PPC, and logo design. They’re currently building a marketing campaign and allocating funds for a startup nearing its launch.

    "Thankfully, Camp Creative combines conceptual design with extraordinarily professional execution." 

    Visit Site
  • 23
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • Berkeley, CA

    SpaceBus is a Magento development agency with two locations—one in Berkeley, Calif., and one in Dnipro, Ukraine. Since 2019, their team of 10+ employees provides Magento-based e-commerce development and web development to mid-market and enterprise-level clients.

    Clients

    • Yamaha
    • Yamaha MusicSoft
    • Whitecap
    • 5Below

    Industries

    Notable Project

    SpaceBus provides mobile app development services for a crypto market company for their end client. They have built the end client's app using Flutter.

    "I like the result-oriented approach from SpaceBus' team."

    Visit Site
  • 24
    • $10,000+
    • 50 - 249 employees
    • San Francisco, CA

    Evistep Enterprise is a software company with over 50 experts based in Yerevan, Armenia. Founded in 2010, they specialize in both web and mobile app development for small and mid-market firms. They work with clients from the industries of gaming, real estate, and e-commerce.

    Clients

    • WebWork Time Tracker

    Industries

    Notable Project

    Evistep Enterprise developed a website for a mobile game design agency. The team built and designed the website as well as providing app and game development services.

    "The attention to detail and quick responsiveness impressed us."

    Visit Site
  • 25
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 2 - 9 employees
    • San Francisco, CA

    Based in San Francisco, Weby Agency is a design, marketing & growth consulting company that was founded in 2017. Their small team of two assists with web design & development, content marketing, and e-commerce development for primarily small businesses. 

    Clients

    • https://puraleafs.com/
    • https://nanopiur.com/
    • https://www.gr8nola.com/
    • https://www.bodyrestore.co

    Industries

    Notable Project

    Weby Agency developed a new Webflow site and logo for a video commerce platform. Additionally, they conducted market analysis, wrote new copy for the site, developed a new visual identity for the client.

    "The Weby Agency team was friendly and helpful, and it felt great to cross the finish line with them."

    Visit Site
  • 26
    • $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 web maintenance for a pharmaceutical and public payer drug company. 

    "They can work independently and get things done on time."

    Visit Site
  • 27
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • San Francisco, CA

    Proleadsoft is a full-service digital agency headquartered in San Francisco, Calif. With a team of around 15 employees, Proleadsoft specializes in web development, SEO, and web design.With Proleadsoft's help, the youth nonprofit's website is modern, easy to navigate, and has attracted more traffic.

    Clients

    • Travel Merchants
    • Nofomo
    • the DJ List
    • Incline Insurance

    Notable Project

    Proleadsoft’s founder became an advisory board member for the nonprofit and provided four team members to redesign an obsolete website from scratch, integrating social media and assisting with content.

    "I would recommend them to anyone seeking assistance in web design."

    Visit Site
  • 28
    • 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

    A pet software company collaborated with Apex Lab for mobile app development and maintenance. The team helped define the project scope, build cross-platform in React Native, integrate Stream Chat, and more. 

    "They were passionate about the work, and they were full of ideas."

    Visit Site
  • 29
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 50 - 249 employees
    • San Francisco, CA

    Scalio is a global digital product agency based in San Francisco, with offices in Atlanta and in Orange, Calif. The agency, founded in 2011, has more than 40 employees and provides, among others, web design, UX/UI design, and web development services to midmarket and other companies in various industries. 

    Clients

    • Google
    • Viacom
    • Shell
    • Uber

    Industries

    Notable Project

    Scalio reached out to a mobile solutions provider to offer iOS and Android solutions. The team was in charge of overhauling the company's existing platform into one that's more scalable.

    "From beginning to end project management is fast and transparent."

    Visit Site
  • 30
    • Scheduling

      4.8
    • Quality

      4.7
    • Cost

      4.8
    • NPS

      4.6
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 1,000 - 9,999 employees
    • San Francisco, CA

    Large mobile app development firm AppTecHub, is based in San Francisco, California. Founded in [node:field_pp_year_founded:value], the team specializes in mobile app development, web development, and custom software development.

    Industries

    Notable Project

    A custom carwash and design company hired AppTecHub to develop web and mobile apps. They created a custom CRM platform which they currently support and maintain.

    "They've made my work much easier in developing the app and addressing my issues."

    Visit Site

Need help selecting a company?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

Tell us about your project