Top 70 JavaScript Development Companies in Denver

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Top 70 JavaScript Development Companies in Denver

December 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. 

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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 manages a variety of development projects, for both web and mobile. They built an online payment portal and system that tracks tax data, which they’re currently integrating with various cloud components.

    “They’ve been on the project for nearly a decade and consistently find new technologies that improve our products.”

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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

    A school communications company needed to move from their Flash-based solution before 2021. Spire Digital was hired to build an application and work on UI using Node, Express, React, and PostgreSQL.

    "Their ability to solve problems was zero. It was beyond frustrating."

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  • 3
    • Scheduling

      4.6
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Denver, CO

    With headquarters in Denver and offices all over the country, NEWMEDIA specializes in creative and innovative web design and development and SEO. The agency and its nearly 200 employees have created 3500+ websites and applications since they were founded in 1996.

    Industries

    Notable Project

    NEWMEDIA built two websites for a civil engineering company. Created using WordPress, the team used the same skeleton as the framework for both sites. Their current project involves an intranet solution.

    "We wouldn't have this new work were it not for NEWMEDIA's design skills."

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  • 4
    • $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 developed an iOS and Android application for online arts learning which addresses accountability through a quantifiable method of assessments for performance artists in schools.

    "AppIt Ventures is phenomenal in addressing needs and explaining issues."

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  • 5
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • Denver, CO

    Mobomo is a 50+ web and mobile app design and development agency based in Vienna, VA with an office in Denver, CO. Since their startup in 2009, the team has helped to create functional and outstanding UI/UX with a responsive backend for businesses of all sizes.

    Clients

    • NASA
    • Mars Candy
    • International Trade Association
    • Voice of America

    Industries

    Notable Project

    Mobomo developed custom mobile iOS and Android applications for a federal government agency's internal staff and organizational partners.

    “[Mobomo] has extremely talented developers with a knack for finding the most efficient solutions.”

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  • 6
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

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

    Tonic, a enterprise app modernization company, is headquartered in Denver, Colorado. The small agency was launched in 2015. Their services include enterprise app modernization, ux/ui design, web development, and mobile app development.

    Industries

    Notable Project

    A mortgage company hired Tonic to develop their UX strategy, research, and design. They mostly had frontend development with a heavy focus on Angular2. They also used CSS and .NET for the project.

    "Their talent level and attitude were incredible. We eventually used them for talent recruiting and work support."

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  • 7
    • Scheduling

      4.9
    • Quality

      4.8
    • Cost

      4.7
    • 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 built custom software from scratch for a biotech company using Python and Javascript. The software takes large amounts of data and renders it into a report that is easily understandable.

    “I’m certain that we will end up working with them again.”

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  • 8
    • $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

    Neon Rain worked on the website backend and design for a client of a video production company. They also developed an app that allows users to upload and create videos on the website from their cell phones. 

    "The quality was unsurpassed."

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  • 9
    • $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 provides ongoing website maintenance for a nanny agency. They work on page overhauls, redesigns, and code edits, handling everything from the solution proposal stage to product launches. 

    "We have always been exceptionally pleased with their work."

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  • 10
    • $100,000+
    • 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 initially streamlined the gifting process for the holiday season and is now in charge of several ongoing website improvements which include backend integrations, new features, and more.

    "Flatiron Development estimated specific deadlines and did not miss a date."

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  • 12
    • 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 provided outsourced development for a fraternity event management platform. Using Vue.js, their team built a web-based event hosting portal and converted the iOS platform to Android.

    "In two short months, they provided the products exactly as we wanted them."

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  • 13
    • $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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  • 14
    • $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 provides UI improvements and website redesign services.

    "The tools that were incorporated are very useful."

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  • 15
    • 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

    BLKDG completed a total site redesign with custom graphic development and a focus on improving user experience. They also provided marketing efforts and analytics in order to increase web presence. 

    "I am consistently getting amazing feedback about the work that BLKDG is doing."

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  • 16
    • 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

    BlueModus maintains a healthcare facility's Kentico site. As part of that, the team conducts troubleshooting in order to solve the client's technical issues. 

    "They’re fantastic, and we have a great relationship."

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  • 17
    • $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 created a project discovery scope and developed blockchain architecture. They delivered white paper design elements to support a team management product.

    “Their attention to detail and creativity is the main differentiator.”

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  • 18
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 2 - 9 employees
    • Denver, CO

    Bowtie.co, a web design company, was established in 2016. The small team offers web design, custom software development, web development, ux/ui design, and more. The firm is located in Denver, Colorado.

    Clients

    • USA Cycling
    • Fitbit
    • Notion
    • ShopStatus

    Industries

    Notable Project

    Bowtie.co was hired by a planning and design services firm for their creative web design services. The team provides the client with ongoing design work so they can interface with their customers seamlessly.

    "Bowtie’s pride in their craft has shined through from the start to the finish of these ongoing projects."

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  • 19
    • 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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  • 20
    • $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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  • 21
    • $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 development and design staff augmentation for a digital agency. They assist with strategy and manage project elements in Shopify, WordPress, and other technologies.

    “They’re an effective extension of our internal team.”

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  • 22
    • $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 developed a complex client-owned extension to the Microsoft Office suite that allows a network of around 10,000 corporate clients to manage their own schedules and interact with one another's. 

    "We really appreciated the speed of their answers and their commitment."

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  • 23
    • $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

    Ready Fire Digital was hired to perform Shopify revamp and SEO services for a consumer goods firm. The client added video production services as part of their work to help boost their online presence.

    "I really like working with Ready Fire because they’ve been taking the time to know my product."

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  • 24
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      4.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 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.

    Industries

    Notable Project

    Howard Development & Consulting developed a WordPress site for an account management service. Requirements included mobile optimization, web accessibility, a custom 404 page, and more.

    "There have been times that someone on Rob's team recommends something that we did not think of to add further value."

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  • 25
    • $5,000+
    • 10 - 49 employees
    • Centennial, CO
    Custom software development firm Argis Solutions, Inc. Was founded in 2016. The small team provides custom software development, web development, mobile app development, web design, and more. The agency is in Centennial, Colorado.

    Industries

    Notable Project

    Argis Solutions, Inc. developed a mobile app for a wearable voice monitor company. The team provided wireframes and integrated the firm's UI design into their screens. They also supported firmware upgrades. 

    "Their software developers have skills that translate into different platforms and projects."

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  • 26
    • 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

    Elasticis has developed the MVP of a web app that can analyze job information. They’ve created fields to standardize information collection and applied analytics functions to gain insights into those fields. 

    “Everything that they’ve delivered has either met or exceeded expectations.”

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  • 27
    • $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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  • 28
    • $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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  • 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
    • $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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