Top 70 JavaScript Development Companies in Boston

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Top 70 JavaScript Development Companies in Boston

July 2022

Looking for a top JavaScript developer in Boston?

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 Boston JavaScript Developers

  • 1
    • Scheduling

      4.8
    • Quality

      4.7
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • Boston, MA

    A tech frontrunner since 1989, Zco is a full-stack app development firm offering web, mobile, and animation services. Headquartered in Nashua, New Hampshire with a Boston office, the 200+ specialists comprise a powerhouse team with outstanding and varied proficiencies.

    Clients

    • Golflogix
    • Volkswagen
    • Microsoft
    • Harvard University

    Industries

    Notable Project

    Zco developed a mobile application for an autism resource company to help families deal with autism easier. They worked on designs based on provided wireframes and colors.

    "Their patience with first-time app clients was amazing."

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  • 2
    • $25,000+
    • 10 - 49 employees
    • Boston, MA

    The Gnar Company, Inc. is a computer software company based in Boston and founded in 2015. Their team of around 15 provides a variety of services including custom software, mobile app, and web development. They often partner mid-sized and enterprise businesses in a large number of sectors. 

    Industries

    Notable Project

    The Gnar Company developed a mobile app for a software company. They learned all designs and implementation initiatives, created the app infrastructure, and connected it to the core API of the client's system.

    "The communication and project management were very professional throughout the process."

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  • 3
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Walpole, MA

    HTMLPanda, founded in 2014, is a website development company headquartered in Boston, with additional locations in Walpole, Mass., and New York City. The company’s team of 9 people focuses on web development, e-commerce development, and web design. They work with mid-market, enterprise, and small businesses for clients in the business services, IT, and financial services industries. 
     

    Clients

    • Vodafone
    • Intel
    • Motorola
    • Hewlett Packard

    Industries

    Notable Project

    HTMLPanda developed a WordPress website for a digital surgery imaging startup. Before the development, they held a virtual meeting with the client to discuss the project's objectives, requirements, and budget. 

    "We got regular updates on the project’s success. They professionally responded to our queries in a short time."

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  • 4
    • $25,000+
    • 10 - 49 employees
    • Boston, MA

    Third & Grove is a web development firm headquartered in Boston with an additional office in San Francisco. Founded in 2013, they have 34 employees and have worked with well-known brands in sectors such as food & beverage and financial services. Third & Grove provides web design and development, e-commerce development, UI/UX design, and digital strategy for primarily midmarket-sized clients. 

    Clients

    • Benefit Cosmetics
    • King Arthur Flour
    • Google
    • Williams-Sonoma

    Industries

    Notable Project

    Third & Grove redeveloped the flagship website for a newspaper in Boston. The client needed a responsive website instead of a mobile app to keep up with their industry, and selected Third & Grove because of their preference for Drupal. Using Drupal 7, the Third & Grove team delivered an enterprise-grade site that now supports approximately half their traffic coming from mobile devices.

    "Our mobile traffic has increased. Prior to this, the experience was seeing the desktop version on your mobile device. We’re now about 50% mobile and 50% desktop and tablet." — VP of Digital Operations, Boston Newspaper

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  • 5
    • $75,000+
    • 50 - 249 employees
    • Somerville, MA

    OHO Interactive is an interactive agency that provides web development, web design, and digital strategy services located in Somerville, Mass. Founded in 1998, they have a team of about 70 employees who support midmarket clients in a few industries: education, healthcare and medical, and nonprofit. 

    Clients

    • Dartmouth College
    • Harvard University
    • Columbia Law School
    • Norwich University

    Industries

    Notable Project

    OHO Interactive redesigned and developed a website and CMS. They also provided branding support and created relevant materials to launch a new, specialized site. Their team supplies ongoing support.

    "They’re able to provide quality insights and guide us toward success."

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  • 6
    • $50,000+
    • 10 - 49 employees
    • Boston, MA

    Create + Conquer is a digital agency that specializes in web design and development, as well as UX/UI design and digital strategy. Based in Boston, MA, Create + Conquer is composed of fewer than 10 employees and is committed to serving mostly mid-market businesses in the business services and non-profit industries.

    Clients

    • The MSPCA-Angell
    • National Geographic Learning
    • Curinos
    • Appalachian Mountain Club

    Industries

    Notable Project

    Create + Conquer built a new WordPress site for a publishing company. They offered strategies to present a diverse product list and improve support links before designing and developing the front- and backend.

    “The design of the site looks really great. Their team works well together and they kept the project well-organized.”

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  • 7
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.2
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 employees
    • Hingham, MA

    Founded in 2010, DockYard is a digital product agency in Boston that focuses on custom software, mobile and web app design and development. DockYard caters to startups, mid-market, and enterprise clients nationwide and also offer UX, staff augmentation, and training. Their 80-person team develops using Ember, Elixir, and Phoenix. 

    Clients

    • Netflix
    • Apple
    • Nasdaq
    • McGraw-Hill Education

    Industries

    Notable Project

    Dockyard developed a web app for an e-learning company, from front-end development to visual design to implementation. Their work ethic, creativity, collaboration, and overall dedication to a quality product was evident to the client.

    "In talking with DockYard, we found them to be brilliant. That's one of the real strengths of DockYard. … They're a major player in the development community in Boston and the East Coast. Their reputation is amazing in terms of the contributions they make to the community." – Former Sr. Software Engineer, E-learning Provider

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  • 8
    • Scheduling

      5.0
    • Quality

      4.8
    • Cost

      5.0
    • NPS

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

    Boston software and web development company Vermonster offers full-service design and development for applications across platforms. Prioritizing visual design and user experience, Vermonster's 20-person team has produced digital experiences for clients in sectors from medicine to education to government. With a focus on Ruby on Rails and JavaScript, Vermonster's robust development team has created web apps, desktop software, sophisticated chatbots for Facebook and Slack, and mobile apps for a number of high-profile clients.

    Clients

    • McKesson
    • Autodesk
    • Harvard Business Review
    • City of Boston

    Notable Project

    A member of the faculty at a Boston university's school of medicine worked with Vermonster to create a digital learning environment for medical students. The platform included a note-taking tool optimized for medical programs, portfolios of class material, a heat map of students, and social features to encourage collaboration. Students and professors found the platform extraordinarily helpful and hope to expand it to other medical departments.

    "They went above and beyond in terms of bringing us more features than we had initially thought possible due to our limited funding." – Faculty Member, Medical School

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  • 9
    • $25,000+
    • 10 - 49 employees
    • Lynnfield, MA

    Founded in 2001, Going Clear Interactive is a web design and development company based in Boston, MA. With fewer than 10 employees, GoingClear Interactive has nearly two decades of experience working with mostly small and mid-market businesses. Their services include web design, web development, and e-commerce development.

    Clients

    • Houghton Mifflin Harcourt
    • SAP
    • Underscore VC
    • ProcessUnity

    Industries

    Notable Project

    Starting from comps, GoingClear Interactive developed, designed, and built a new website. They led all aspects from coding, testing, and post-launch performance benchmarks.

    "I didn't just get a good website, I got a sales tool that’s perfect for my business and brand."

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  • 10
    • $10,000+
    • 2 - 9 employees
    • Boston, MA

    Kevin Leary is a freelance web developer based in Boston who specializes in single page app development. With a background in Angular, data visualization, and analytical UX/UI, Kevin helps build web applications and websites for clients across the U.S. Founded in 2007, kevinleary.net creates custom WordPress themes and plugins for clients and writes code for large brands.

    Clients

    • EMC
    • Tufts Medical Center
    • Harvard University
    • MIT

    Notable Project

    Kevin helped a major travel agency create a blog on WordPress. The custom WordPress website included APIs that pulled information from the travel agency's main website – translations, images, hotel ratings. The client saw an increase in web traffic and was able to grow its social media audience by sharing content from the blog.

    "Kevin was responsive throughout the project. He’s been available anytime we needed him. Most of the communication was done through email or Trello for managing specific tasks and items which needed to be built." – Marketing Manager, Travel Site

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  • 11
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 10 - 49 employees
    • Arlington, MA

    Involution Studios is a software services firm based in Arlington, Mass. Founded in 2004, the team of 13 specializes in web design and development, mobile app development, and custom software development. They focus on business services, healthcare & medical, and information technology.

     

    Clients

    • 3M Health Information Systems
    • Becton Dickinson
    • Johnson & Johnson
    • Mount Sinai

    Industries

    Notable Project

    Golnvo works with a home nursing company to create the UX/UI for their web application. Apart from this, they also work on development to create an MVP.

    “They’re a small but highly efficient team.”

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  • 12
    • $25,000+
    • 10 - 49 employees
    • Boston, MA

    MESH Interactive Agency is a full-service content marketing agency based out of Boston. Founded in 2006, the team of 11 specializes in advertising, branding, and content marketing. 

    Clients

    • Avedro
    • Optos Aziyo
    • Aziyo Biologics
    • Charm Sciences

    Industries

    Notable Project

    MESH Interactive Agency worked on rebranding and marketing for a telecommunications company. The team helped a company rebrand to include new service offerings. They led brainstorming sessions, updated a website and its messaging, and created a HubSpot profile to run marketing campaigns. The client appreciated their dedication to the project.

    "Their team genuinely understood our project goals and adhered to our requests as meticulously as possible. They produced high-quality deliverables—including graphics and packaging for both Mac and Windows platforms—on time and at reasonable rates." — Sales and Marketing Director, Telecommunications Company

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  • 13
    • $5,000+
    • 2 - 9 employees
    • Woburn, MA

    Established in 2015, NL Softworks is a small web development firm. Their team focuses on web development, web design, custom software development, application management & support, and more. The company is based in Marblehead, Massachusetts.

    Clients

    • Bontoni Shoes
    • Rent Boston Cars

    Industries

    Notable Project

    NL Softworks was hired to redo a structural engineering firm's website. The client wanted a modern website that was accessible at an affordable cost.

    "They always listened to our input and we’re able to make our goals a reality."

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  • 14
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Boston, MA
    PurpleFire is a small software development firm established in 2021. Their team focuses on custom software development, web development, e-commerce development, blockchain, and more. The firm is based in Køge, Denmark.

    Industries

    Notable Project

    PurpleFire is updating a clothing and fashion accessory store's website. They were chosen for their pricing and capabilities.

    "The design, knowledge, user experience, and optimization are excellent. They are very collaborative and skilled."

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  • 15
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      4.3
    • NPS

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

    Echo&Co is a primarily UX/UI agency headquartered in Somerville, Mass., with satellite offices in Louisiana, Virginia, Michigan, and British Columbia. It is a full service digital agency of about 20 employees. In addition to UX/UI, Echo&Co provides web development and product design services. The agency works primarily with midmarket businesses.

    Clients

    • ASPCA
    • BrightFocus Foundation
    • Climate Reality Project
    • Free Press

    Industries

    Notable Project

    Echo&Co provided a international medical association with more streamlined website navigation. The agency was able to quickly able to make the website more functional for the client's fundraising and marketing communications objectives. 

    "We’ve received a lot of great feedback internally [on Echo&Co's design], as well as from users who are new to the site. We have a lot of stakeholders internally who are involved with that section as it drives their conversion rates. Getting positive reactions from them was a great win for us." - Manager, International Medical Association

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  • 16
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 2 - 9 employees
    • Watertown, MA

    Realmonkey is a 15-person app development agency based in Mohali, India. Since 2015, the team has created mobile apps, websites, and UX/UX design for midmarket and small businesses.

    Clients

    • GoDaddy
    • Holostik India Ltd.
    • Nature Trust
    • Mondee Holdings

    Industries

    Notable Project

    A social network news platform company collaborated with Realmonkey for UI/UX design. The team focused on the overall designs, managing concepts, colors, and logos.

    "They had an excellent reputation and quality of work."

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  • 17
    • $10,000+
    • 10 - 49 employees
    • Cohasset, MA

    Kevit Technologies is a chatbot agency headquartered in Rajkot, India. The company was founded in 2018, and has a team of 35 that specializes in AI. They also provide digital strategy, web development, and business consulting services for clients in the advertising, marketing, and business services industries.

    Clients

    • HumanPixel
    • M&M Belgium
    • Botvise
    • Lawren.io

    Industries

    Notable Project

    Kevit Technologies did chatbot development for an IT company. The client needed a chatbot solution because they wanted to be able to guide users personally. The company and the client worked together closely, and the client was happy with the quality of their work. 

    “They provide insights into our progress. They’re very professional and I’m enthusiastic about their support. It's a delight working with them.” — Founder, IT Company

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  • 18
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Boston, MA

    Revox is a small user experience company. Founded in 2015, the agency is based in Nugegoda, Sri Lanka. Their team specializes in ux/ui design, custom software development, blockchain, IoT development, and more.

    Industries

    Notable Project

    Revox has developed a website for a software company. The team was tasked with designing the website's UX and UI. The goals are to come up with a good MVP that can be used in the market as an additional source.

    "They are responsive, responsible, and friendly."

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  • 19
    • $10,000+
    • 50 - 249 employees
    • Lexington, MA

    Tekdi Technologies Pvt. Ltd. Is an UX design agency founded in 2006. They are headquartered in Pune, India and have a midsize team. The company specializes in ux/ui design, IT staff augmentation, custom software development, web development, and more.

    Clients

    • UIDAI-Aadhaar
    • EkStep Foundation
    • Climate KIC

    Industries

    Notable Project

    A government agency wanted to integrate their website with a specific service in order to provide user with a unified and responsive UX framework. They partnered with Tekdi Technologies to handle the project.

    "The Tekdi team went beyond the call of duty and did more than they were asked for."

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  • 20
    • $10,000+
    • 2 - 9 employees
    • Boston, MA

    Next Idea Tech, Inc is a custom software development firm headquartered in Beverly, Mass. Founded in 2018, the team has less than 10 employees who primarily provide custom software development and web development services. They work with mid-market and small businesses and work in the health care & medical, e-commerce, advertising & marketing industries. 
     

    Clients

    • SURREAL EVENTS
    • YPrime
    • Arizent
    • Officer Reports

    Industries

    Notable Project

    Next Idea Tech, Inc helps a SaaS company with their cloud migration efforts. They also assist in the client's .NET projects. 

    "They are always communicative and keeps us abreast of any obstacles that they face."

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  • 21
    • $25,000+
    • 10 - 49 employees
    • Boston, MA

    Zagaran, Inc. is a Harvard-alumni led software development company headquartered in Boston, MA that offers web development, custom software, and mobile apps. Their team has provided software development for clientele ranging from Global 500 companies to universities to government agencies, working primarily with Python, Django, and React/Angular.

    Clients

    • Harvard University
    • MIT
    • Commonwealth of MA
    • Teva Pharmaceuticals

    Industries

    Notable Project

    Zagaran augmented the development team of a large pharmaceutical company. Their development team could not handle the sophisticated project, which involved a Django backend to a mobile app and continuous integration. Zagaran delivered the necessary support for less than half the projected cost to do so in-house.

    "I know they do good work. The team resolves issues in a careful and thorough manner, and without the need of external supervision." - Senior Web Developer, Pharmaceutical Firm

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  • 22
    • Scheduling

      4.8
    • Quality

      4.7
    • Cost

      4.7
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 10 - 49 employees
    • Cambridge, MA

    Potick is a software company founded in Cambridge, Mass. in 2020 with no more than 50 employees. They offer web development, e-commerce development, and UX/UI design services for small and mid-market businesses alike.

    Clients

    • The Infinite Mind - Dementia Project
    • Hooga Homes and Gardens
    • Alama Foundation

    Industries

    Notable Project

    Potick provides web development services for a nonprofit organization. The team is working on website projects with the client, helping them post content and update the sites for quick expansion.

    “They have an excellent attitude about getting the work done as professionally as possible.”

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  • 23
    • Scheduling

      4.5
    • Quality

      4.8
    • Cost

      4.3
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Boston, MA

    Founded in 2001, MTC Labs is a full-service web and mobile app development firm based in Boston, MA. Proficient in everything from product design to social media strategy, this 10+ team offers a robust and award-winning skillset.

    Clients

    • Partners Healthcare
    • Boston Scientific
    • Harvard University
    • rEVO Biologics

    Industries

    Notable Project

    MTC Labs designed and developed a platform to help medical professionals access resources and submit reports. The client appreciated the team’s accommodating demeanor and flexible work ethic, as well as their deep insights into the unique solution required.

    “So far, the platform is working well. ... We have about 1,300 users. Of that group, we had maybe 500 people recertifying this year, and they all recertified without any issues.” – Director, Medical Services Company

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  • 24
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 2 - 9 employees
    • Boston, MA

    Founded in 2015, SERPCOM is a full-service digital marketing agency based in Boston, Mass., with an additional location in Quincy, Mass. With a team of 7, SERPCOM focuses on SEO, web development, and web design. The travel company appreciated that SERPCOM was proactive in proposing website upgrades, including improved security features. With SERPCOM's assistance, the travel company experienced a 100% increase in web traffic.

    Clients

    • Faneuil Hall Marketplace, Boston, MA
    • Cara Group Travel, Quincy, MA
    • Massachusetts Association of Buyer Agents

    Industries

    Notable Project

    An international travel company partnered with SERPCOM to strengthen their online presence. Serpcom created an ongoing digital marketing strategy including platform migration, advertising campaigns, and improved SEO.

    "They’ve made everything very affordable for me as a small company from the very beginning and provided a level of scalability that I’ve been comfortable with. They’ve proved their worth and made me feel confident about increasing my marketing budget." - Owner, International Travel Company

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  • 25
    • $5,000+
    • 50 - 249 employees
    • Boston, MA

    Website development firm Adapt agency was launched in 1998. Located in Boston, Massachusetts; København, Denmark; Kaunas, Lithuania and Vilnius, Lithuania, their midsize team provides web development, custom software development, e-commerce development, ux/ui design, and more.

    Industries

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  • 26
    • $1,000+
    • 2 - 9 employees
    • Boston, MA

    Webfix Studio is a web development firm. Established in 2012, the team specializes in web development, ux/ui design, e-commerce development, mobile app development, and more. Their small company is based in Boston, Massachusetts.

    Industries

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  • 27
    • $5,000+
    • 2 - 9 employees
    • Boston, MA

    Consensus Creative is a small web design agency. Launched in 2020, the firm is headquartered in Toronto, Canada. Their services include web design, web development, and graphic design.

    Clients

    • Toronto Arts Academy
    • Harmony Home Cleaning
    • Palace Theatre

    Industries

    Notable Project

    Consensus Creative developed a website for a software development company. They helped the company with their goal of attracting more clients through a proper site.

    "They provided a professional-looking site and taught us how to update content."

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  • 28
    • $1,000+
    • 10 - 49 employees
    • Boston, MA

    CodeToArt Technology Private Limited is a development and design company in Bibvewadi, India. Founded in 2016, they also have an office in Kalyan, India. They have a team of around 10 employees who provide mobile app and web development, in addition to UX/UI design services.

    Clients

    • Appetize - Appetize is the most powerful payment platform for live events and sports. QuestaGame - QuestaGame is a mobile game that gets players outdoors to engage with
    • learn about life on earth. LaunchByte - LaunchByte is a unique startup hub with a focus on product design
    • development and marketing.

    Industries

    Notable Project

    CodeToArt Technology Private Limited developed a healthcare startup’s user-facing website. The platform showed recipes, videos, and cooking information, and it had user log-in features. 

    "Their team was clear and quick to respond."

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  • 29
    • Undisclosed
    • 50 - 249 employees
    • Boston, MA

    Headquartered in West Palm Beach, Florida; Farmington, Connecticut; Boston, Massachusetts and New York, New York, Primacy is a web development firm. The midsize team specializes in web development, media planning & buying, custom software development, digital strategy, and more. The company was launched in 1994.

    Industries

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  • 30
    • Undisclosed
    • 50 - 249 employees
    • Boston, MA

    Cantina, an user experience design company, is in Boston, Massachusetts. The midsize company was founded in 2007. Their team focuses on ux/ui design, mobile app development, web development, AR/VR development, and more.

    Industries

    Visit Site

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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