Top 70 JavaScript Development Companies in Denver

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Top 70 JavaScript Development Companies in Denver

May 2022

Looking for a top JavaScript developer in Denver?

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. 

List of the Best Denver JavaScript Developers

  • 1
    • $250,000+
    • 250 - 999 employees
    • Broomfield, CO

    Gorilla Logic provides nearshore Agile teams to Fortune 500 and SMB companies, bringing unparalleled expertise in the delivery of full-stack web, mobile, and enterprise applications. Founded in 2002 and headquartered in Broomfield, Colo., they have over 500 employees and development centers in San José, Costa Rica and Medellín, Colombia. 
     

    Clients

    • A Place for Mom
    • Arrow Electronics
    • DaVita
    • Maxar

    Industries

    Notable Project

    Gorilla Logic provides development outsourcing services to an energy company. They came onboard to help rewrite an application, porting it from flash player-based to web-based delivery using a browser model.

    “We got a team of qualified engineers relatively rapidly, without a lot of work on our part.”

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  • 2
    • Undisclosed
    • 1,000 - 9,999 employees
    • Denver, CO

    Spire Digital is a Denver, CO-based digital product development company. The team of more than 50 employees specializes in custom software development, UX/UI design, web development, and app development.

    Clients

    • Lockheed Martin
    • TomTom
    • US Navy
    • AT&T

    Industries

    Notable Project

    To further improve their client's efforts in helping their patients, a healthcare tech data company engaged with Spire Digital to develop a mobile app and design its UI/UX.

    "This partnership helped us understand what our next steps should be as a company moving forward."

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  • 3
    • $5,000+
    • 50 - 249 employees
    • Westminster, CO

    Direct Line Development is a web design studio headquartered in King of Prussia, Pa., with an additional office in Westminster, Colo. Direct Line Development's team of around 20 focuses on web design, web development, and SEO. Direct Line Development primarily works with small businesses.The client noticed an increase in web traffic and online sales within the first week of launching the new website.

    Clients

    • Mel's Pizza
    • Philadelphia Party Planner
    • Ben Manis Plumbing
    • 3rd Floor Media

    Industries

    Notable Project

    Direct Line Development was contracted to develop a custom Python website and provide SEO. Their copy was unusable, and a pattern of poor performance led to a request to cease billing, which went unanswered.

    "Their communication leaves a lot to be desired, and I’m severely disappointed in their customer service." 

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  • 4
    • $25,000+
    • 2 - 9 employees
    • Denver, CO

    Volare Systems is a software development company founded in 2009 in Highlands Ranch, Colo. Their 3-person team offers development for custom software, web, and mobile apps. They primarily serve enterprise and midmarket clients in various industries: e-commerce, telecommunications, nonprofit, retail, advertising, business, and education.

    Clients

    • Air Force
    • AT&T
    • Kaiser Permanente
    • Jeffco Public Schools

    Industries

    Notable Project

    Volare Systems provides software development and consulting for a data integration project. They’re working to connect an internal management system with external, third-party solutions.

    "Their team is always thinking ahead, frequently presenting creative ideas and solutions."

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  • 5
    • $10,000+
    • 10 - 49 employees
    • Denver, CO

    Neon Rain Interactive is a Denver-based custom web development firm that was founded in 2002. The firm has around 10 employees and provides custom software development, web design, and web development services mainly to small businesses.

    Clients

    • Sprint
    • ADT
    • Subway
    • Ascent Dental

    Industries

    Notable Project

    Another development agency hired Neon Rain to help develop a complex CMS for one of its clients, a real estate site. Neon Rain helped integrated Google Docs into a WordPress front-end. The site was a success and listed more than triple the number of units a year after Neon Rain's help. 

    "Their process is wonderfully streamlined. It felt automated with how simple and clear it was moving from step to step." - Owner, Development Firm

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  • 6
    • $50,000+
    • 10 - 49 employees
    • Denver, CO

    Flatirons Development is a UX/UI product design and software development consultancy, founded in 2018. They employ seven staff in their office in Boulder, Colo., where they focus primarily on product management and strategy, UI and UX design, web development, and native mobile app development. They work with a range of small, midmarket and global companies.

    Clients

    • Abbott
    • Osmosis
    • Zeta
    • Nomad Health

    Industries

    Notable Project

    Flatirons Development is the development partner of a ride-sharing service. They use React Native, AWS, PostgreSQL, and more to build an app that facilitates transportation in transit deserts.

    "Flatirons’ mockups and prototypes always exceed our expectations."

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  • 7
    • $25,000+
    • 10 - 49 employees
    • Denver, CO

    Based in Denver, Appit Ventures is a software development company that specializes in creating mobile applications and developing custom software. With around 30 employees and offices in a second and third office in London and India, the company has a portfolio of 300+ clients.

    Clients

    • The State of Colorado
    • Lionshare Negotiations
    • Mindful Mamas
    • Florence Crittenton

    Industries

    Notable Project

    AppIt Ventures worked with a business technology firm to create a GPS-based asset tracking app that allows users to perform device configurations. The client required the platform to be integrated into AWS.

    "Our expectations were extremely high and were exceeded every single week of this amazing journey."

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  • 8
    • $5,000+
    • 2 - 9 employees
    • Denver, CO

    House of Giants is a small website development firm. In Denver, Colorado, the firm was launched in 2015. Their services include web development, web design, ux/ui design, digital strategy, and more.

    Clients

    • BiggerPockets
    • Bonanno Concepts
    • Comcast
    • Denver Botanic Gardens

    Industries

    Notable Project

    House of Giants has provided web development and design services for an education startup. They’ve built the WordPress website from scratch to make the client stand out from the competition.

    "They do a great job at getting to know the brand and investing in our collaboration."

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  • 9
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.6
    • NPS

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

    Cuttlesoft is a creative product development agency founded in 2009. Based in Tallahassee, Fla., the team of 6 employees specializes in custom software development, mobile app development and UX/UI. They mainly serve small businesses in the IT, entertainment and business services industries. 

    Industries

    Notable Project

    Cuttlesoft assists an IT firm by managing remote staff augmentation for web and mobile development tasks. The team also migrates a web-based SDK to iOS and Android and fills in requirement gaps as needed to deliver complete solutions. The client is pleased with the team's work. 

    "We’ve had a great experience. The programmers they’ve assigned to our projects have been exceptional. I have no complaints [...]." — CEO, IT Services Firm

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  • 10
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 2 - 9 employees
    • Denver, CO

    Begin, LLC is a boutique app development company based in Denver, with offices in Chicago and Bloomington, Ill. The company, founded in 2016, has a team of less than five that provides custom software development, web development, and mobile app development services to companies and institutions in the business services, arts and entertainment, health care and medical, government, and media industries.

    Clients

    • Chaser
    • GovFlex
    • Live Marketing

    Industries

    Notable Project

    Begin, LLC was hired by a social media platform to provide them with web app development. The team is continuing the build by implementing new features and providing ongoing support and maintenance.

    "We’re impressed with their responsiveness and empathetic approach to what we’re working to achieve."

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  • 11
    • $1,000+
    • 10 - 49 employees
    • Littleton, CO

    In Edina, Minnesota; Monterey, California; Parsippany-Troy Hills, New Jersey and Albuquerque, New Mexico, Byte Technology is an e-commerce development firm. The small agency was launched in 2001. Their team focuses on e-commerce development, web design, web development, custom software development, and more.

    Industries

    Notable Project

    Byte Technology was hired by a sports accessories retailer to update their WordPress site. They are tasked with migrating the site to a new host, removing outdated features and implementing new ones, and more.

    "Their team of talented and competent developers is able to understand and implement the features we wanted."

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  • 12
    • $5,000+
    • 10 - 49 employees
    • Denver, CO

    Denverdata Web is a web design and development firm based in Denver, CO. Founded in 1998,  Denverdata Web's team of fewer than 5 employees has over two decades of experience working with clients on web design, SEO, and PPC services. 

    Clients

    • Structural Consultants Inc
    • MKK Engineering
    • Arcwest Architects
    • DHM Design

    Industries

    Notable Project

    Denverdata Web built a website with custom software features for a software retailer. Denverdata Web also helped the client create marketing messages to generate sales. The client was impressed with how professional and accesible the team at Denverdata Web was. 

    "The owner was very responsive. He made sure everyone was pleased with the process, the progress, and the end product. His expertise and guidance were always available." – Business Coach, Software Retailer 

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  • 13
    • Scheduling

      4.7
    • Quality

      5.0
    • Cost

      4.9
    • NPS

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

    BLKDG is a Denver-based creative agency that specializes in web development, e-commerce development, and UI/UX design. Founded in 2010, BLKDG's has a small team of 6 employees. 

    Clients

    • Bicycle Colorado
    • Patrick Dempsey
    • Strafe Outerwear
    • Sierra Nevada Brewing Co.

    Industries

    Notable Project

    A beverageware manufacturer hired BLKDG to transfer their website to Shopify from WordPress and WooCommerce. The team also helps the client integrate third-party apps to improve end users’ customer experience. 

    “They’re not only going to build your site; they’re also going to build something that feels true to your brand.”

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  • 14
    • Scheduling

      4.7
    • Quality

      5.0
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • Denver, CO

    BlueModus is a technology agency based in Denver. The agency, founded in 2001, has more than 75 employees and provides web development, custom software development, e-commerce development, and IT strategy consulting services. BlueModus serves mid-market and enterprise companies in various industries that include business services, financial services, and medical. 

    Clients

    • Alzheimer's Association
    • American Health Law Association
    • Aon
    • Amgen

    Industries

    Notable Project

    A medical device company hired BlueModus to manage and maintain their website and their intranet. For a web migration project of the company, BlueModus designed and developed the corporate website and then helped consolidate 130 domains into one that website. BlueModus completed that project and continues to provide technical services and support to the company.

    "They’re really great at anticipating what our needs are and staffing on their side to support us." - Digital Marketing Manager, Medical Device Company

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  • 15
    • $10,000+
    • 10 - 49 employees
    • Denver, CO

    Founded in 2011, Ideas By Nature is a creative agency. Their team of around 15 employees is based in Denver. They focus on blockchain, web design, and branding.

    Clients

    • FIO
    • Dapix
    • Trace TV
    • SJV

    Industries

    Notable Project

    Ideas By Nature developed blockchain architecture for a film production platform. They were responsible for the entire process, from mockups to the full build.

    "They delivered everything, and we’re very satisfied." – Co-Founder, Film Production Platform

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  • 16
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Denver, CO

    SoftProdukt is a software engineering company located in Denver. Founded in 1986, they currently have about 8 employees. They provide web, custom software, and IoT development services to midmarket firms and small businesses in government, financial services, and the gambling industry. 

    Clients

    • Central Mining Institute
    • KONAR

    Industries

    Notable Project

    SoftProdukt provides Django and Python development services for a data analytics company. Their work ranges from UI to the technical details of working with data.

    "They're a very capable team."

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  • 17
    • $50,000+
    • 250 - 999 employees
    • Englewood, CO

    Surge Software is a software development agency headquartered in Bellevue, WA, with other offices in Sacramento, CA, Baltimore, MD, and Salt Lake City, UT. The agency of 160+ employees provides custom software development, web development, mobile app development, and e-commerce development services.

    Clients

    • CompTIA
    • Casenet
    • Cambia Health Solutions
    • USA Swimming

    Industries

    Notable Project

    Surge is migrating a desktop platform to a new browser-based driver. The proof of concept is nearly complete, and testing is in progress. Two major deliverables have already been implemented successfully.

    "It’s been excellent to work with them; they’re a great group of people."

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  • 18
    • $1,000+
    • 2 - 9 employees
    • Lafayette, CO

    Buink Web Development is a web development firm based in Lafayette, Colo. Founded in 2009, their team of 6 serves clients in the design and retail sectors. Services include mobile app development and web design.

    Clients

    • Reebok
    • Sherwin-Williams
    • Fjallraven
    • Pilatus

    Notable Project

    Buink Web Development provides web development services for a digital agency. The team is considerate, timely, and attentive. They always deliver according to the requirements that were assigned.

    “They’re very transparent about timelines and where they are in their process.” ­– President, Digital Marketing Company

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  • 19
    • $1,000+
    • 10 - 49 employees
    • Denver, CO

    Flyoutsourcing is a software development house headquartered in Denver, Colorado. Founded in 2016, their team of approximately 10 employees has another office in Grodno, Belarus. They mostly serve small businesses, and their capabilities include web, mobile, and custom software development.

    Industries

    Notable Project

    Flyoutsourcing supplemented a stock management startup's internal team in developing a large-scale stock exchange platform. They helped deliver a solution that develops financial reports in real-time. They effectively contributed to a complex solution and integrated valuable capabilities.

    "We are very satisfied with the final result." — Project Manager, Software Development Company

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  • 20
    • $5,000+
    • 2 - 9 employees
    • Denver, CO

    Ready Fire Digital is a digital media studio based in Denver. The studio, founded in 2003, has a team of less than ten that provides video production, web development, web design, social media marketing, and SEO services. Ready Fire Digital serves small and mid-market companies in the e-commerce, advertising & marketing, hospitality & leisure, and health care & medical industries.

    Clients

    • UBS Wealth Management
    • Egg Strategy
    • Powerizer Complete
    • Canopy Advisory Group

    Industries

    Notable Project

    An online detergent retailer hired Ready Fire Digital to revamp their Shopify site and provide SEO services. As part of the engagement, Ready Fire Digital implemented changes to the site without affecting the back end system. They also created video content for the retailer's Instagram and other platforms. To date, Ready Fire Digital has been meeting the retailer's expectations with their work in this ongoing engagement.

    "The best thing about working with Ready Fire is that that they’re on schedule. If they have any hiccups or issues, they’re always upfront about it." - CEO, Online Detergent Retailer

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  • 21
    • $10,000+
    • 2 - 9 employees
    • Denver, CO

    Diverse Programmers, LLC is a development agency based in Denver with fewer than 10 employees. Since their founding in 2015, they have offered custom software, web, and mobile app development solutions for small and mid-market firms across various industries.

    Clients

    • USGS NEIC
    • Peachjar
    • Search Optics
    • GNO International

    Industries

    Notable Project

    Diverse Programmers, LLC developed a warehouse app for a kitchen and bath product manufacturer. The manufacturer needed an app for workers to use in situations where computers aren’t optimal. The project was completed with no real issues.

    “The project was broken down into milestones and we were satisfied with their responsiveness along the way.” - Sales Executive, Kitchen and Bath Product Manufacturer

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  • 22
    • Scheduling

      4.6
    • Quality

      4.6
    • Cost

      4.7
    • NPS

      4.6
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Denver, CO

    ClixLogix is an app development firm. Founded in [node:field_pp_year_founded:value], the midsize agency is located in Noida, India; Tooraweenah, Australia and Denver, Colorado. Their services include mobile app development, custom software development, blockchain, web development, and more.

    Industries

    Notable Project

    ClixLogix provides mobile app development services for an outdoor products startup. The client aims to have the app available within four months.

    "There is a huge differential, due to complications on our side and also due to inefficiencies working with ClixLogix."

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  • 23
    • $250,000+
    • 50 - 249 employees
    • Lakewood, CO

    Briebug is a software development company and website development company located in Lakewood, Colorado. The midsize firm was founded in 2009. Their services include custom software development and web development.

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  • 25
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      5.0
    • NPS

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

    Elasticis is a data science and AI-based software development house with a core team of under 10 employees working out of Englewood, Colo. Since 2018, they've offered a range of services, including web development, mobile app development, and AI. Their clientele consists exclusively of small businesses.

    Clients

    • Well Information Technologies

    Industries

    Notable Project

    An early-stage startup approached Elasticis to create a web app that can record and analyze eyes-on-task job information. After standardizing information input, they applied analytics to specific input fields to synthesize data. While technically proficient, it was the team's drive to deliver solutions that best meet their clients' goals that stood out.

    "In my eyes, they’ve gone above and beyond just delivering my product. They seek to understand the purpose of what I’m trying to do and offer me different ways to accomplish those goals." – Founder & Owner, Early-Stage Startup

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  • 26
    • $5,000+
    • 2 - 9 employees
    • Littleton, CO

    Jollity is a website development company founded in 2011. The small team focuses on web development, web design, and search engine optimization. The company is headquartered in Littleton, Colorado.

    Industries

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  • 27
    • Undisclosed
    • 10 - 49 employees
    • Denver, CO

    Located in Denver, CO, Think Tree Solutions has specialized in creating web and mobile applications since its founding in 2015. The small team of 10 works with clients to build products from scratch or to enhance existing products. They offer mobile app development, web development, UX/UI design, and web design services.

    Clients

    • Healthio
    • WiCis
    • LuminAID Lab
    • Coman Publishing

    Industries

    Notable Project

    Think Tree Studios fixed broken code in a newsstand app for a college sports publisher. Updating the software enabled the client to attract new app users. The client applauded Think Tree Studios for being responsive to their needs.

    “Think Tree Studios is very responsive. The reason we needed them was that our first app developer went AWOL. Just the fact that they were willing and responsive was great.” – Production Manager, Publishing Company

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  • 28
    • $10,000+
    • 10 - 49 employees
    • Denver, CO

    Barbershop is a custom software development firm. The Denver, Colorado-based firm was established in 2015. The small team provides custom software development, mobile app development, ux/ui design, web development, and more.

    Industries

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  • 29
    • Undisclosed
    • 2 - 9 employees
    • Denver, CO

    Headquartered in Denver, Colorado and Denver, Colorado, Revive Design Studios is an e-commerce development company. The small team offers e-commerce development, web development, and web design and was founded in 2011.

    Industries

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  • 30

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    • $5,000+
    • 10 - 49 employees
    • Denver, CO

    Howard Development & Consulting is a Denver, Colorado-based website development firm. The small company was established in 2009. Their team offers web development, e-commerce development, and web design.

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