Top 70 JavaScript Development Companies in Denver

Spire Digital developed a minimum viable product (MVP) – a web app – for a freelance recruitment platform. The client and Spire Digital created the concept, and Spire Digital provided user experience design, app development, and quality assurance. Spire Digital has worked with the company on and off for 15 years.

“Spire Digital has a tier of resources that are highly strategic. Beyond just taking our concepts and our ideas and executing, they’re actually highly strategic on the frontend … [and provide] pushback.” – Managing Director, Recruitment Company

Following an early partnership, Exadel created an open-source and highly sophisticated IAM (Identity and Access Management) solution for enterprise use. From research to discrete data integrations, strategic roadmapping to cloud-delivery services – they wowed the client with their personal dedication, seamless communication, and resource management.

“When it comes to open-source, their expertise is unparalleled. They knew what they were doing … They're true experts.” – Former Chief Security Architect, Fortune 500 Healthcare Company

Gorilla Logic provided a team of developers to help build a new software platform for an HR software company. Using Camunda and GraphQL they have worked to develop a back-end system on Apache Kafka.

“Gorilla Logic has delivered exceptional resources that have increased the speed of development and improved the production timeline.” – Director, Human Resource Company

Mobomo redeveloped the website for a government agency, making it more user and mobile-friendly and responsive. This custom configuration, integration, and design drew praise from users and resulted in increased web traffic. Their expertise and professionalism were well-noted by the client.

“We’ve been blown away...by the quality of code their developers are capable of delivering.” – Acting Director, Government Agency

Appit Ventures developed software for a social media platform using WordPress and Magento. The platform allows celebrities to sell autographs for a profit and allows them to build a page on the site. The clients were happy with the work and continue to partner with Appit Ventures.

“I found AppIt Ventures' team to be very responsive to our needs.” – CEO, Social Media App

BLKDG partnered with an interior design company and relaunched the organization's website to better reflect the company's image. BLKDG also provided email marketing services, performed a content audit on the client's site, and SEO. The client enjoyed working with the team at BLKDG. 

"Their culture is great and really aligns with ours’. We’re here to deliver an exceptional product, have fun along the way, and just relate to the client. They do all of this as well." – Marketing Manager, Interior Design Company

A consulting firm hired Surge Software for web development and UX work. The agency provided staff augmentation across different platforms. The consulting firm felt that Surge was responsive and that its work has been extremely valuable to the company. 

"I’m comfortable in the knowledge that if issues arose with any team member, I could talk honestly with Surge and they would remedy the situation. Be open, articulate your goals, and they will work with you to provide solutions." – Director of Software, Management Consulting Firm

Relish provided web design, inbound marketing, and SEO services to a mobile advertising agency. Their team defined the scope of the business, identify its goals, and built out client personas. Their work significantly improved the client's branding and company message.

"Having a clean, professional, and positive message helps us establish credibility and gives our partners the confidence that we can get the job done. " – Co-Founder/COO, Mobile Advertising Agency 

Techtonic provided web design and development efforts for a business advocacy organization. Their team modernized the platform and focused on the UI design. The website met expectations and received positive feedback.

“Techtonic’s flexibility and their ability to jump right in and take charge of the project impressed me the most.” – Economic Development Director, Business Advocacy Organization

Devetry built an MVP for a performance marketing company. They created a newer, scalable version of the client’s old technology. They worked on the UX, frontend, and supporting middleware tech to create the new product. The client was happy with the collaboration, and said that Devertry was trustworthy and communicated well.

“They care a lot and aren’t just there to build the technology. They’re there to be a part of the entire strategy.” – Product Manager, Performance Marketing Company
 

Culture Foundry developed a website for a tech community and events group. The website was built with WordPress and was also optimized for SEO support. The group sees more and more traffic to the site each month.

“Anytime issues came up, they were immediately responded to.” - Founder & CEO, Tech Community and Events Group

As part of an ongoing partnership, MojoTech prototyped a flagship product and designed the UX, excelling in both the visual and UX design. The client was very happy with MojoTech, from the in-depth discovery process to the responsive workflow to the “execution-oriented” project management.

“We highly recommend them. They’re a great team. They always underpromise and over-deliver.” – Senior VP of Products, Event Registration Platform

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

SoftProdukt provided development services, coding in a Django framework with Python for a data analytics company. They managed application analytics as well as UX/UI design efforts. They offered valuable expertise and produced deliverables efficiently. 

"Their capabilities and skills are very good." — Founder & CEO, Data Analytics Company

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

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 

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

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

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

A public school district hired Volare Systems to build a custom web-based platform to implement a new curriculum management system. Providing resources on a task-by-task basis, they programmed the app, designed the browser interface, and added a recommendation feature. The client has received positive feedback for Volare’s work.

“Volare did a solid job of translating business requirements into a solution that gained wide acceptance among the educators at our district.” – CIO, Public School District
 

codelab303 provided web development services for an experience design agency. The agency had codelab303 work on multiple web development projects for them. codelab303 helped improve the sites’ responsiveness and loading times.

“They’re a really strong tech development shop supplemented by really strong project management.” - Producer, Design Experience Agency

Lincoln Loop upgraded the infrastructure of an educational institution's Python-based shop. The team used Django CMS to implement backend and UI solutions. They also conducted Github deployment tutorials.

"Their team really worked with speed to deliver quality results that were worth our money."

House of Giants developed and design a website for an artist management company. The team prepared a lookbook and site page examples of the idea and discussed it with the client before starting the site.

"They even took the time for in-depth research before calls which proved to me they understood the history and path."

SmartApp upgraded a website to Drupal 7 and delivered an automation system to track activity on certification apps. They handled the prototyping, design, development, and testing for the platform. The final products now streamline internal processes. 

"They are intelligent, experienced, professional developers." – Founder, Certification Company

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

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

Scale3C recently worked on mobile app development for a real estate platform. They promoted an MVP and created an iOS app to connect homeowners with agents for that client.

“The investor feedback we get is that the website and the product are great.” — Founder, Real Estate Platform

Flatirons Development built a web app for a professional training and coaching company that uses an algorithm to match candidates with employers. Their app automatically triggered emails and had filters that made searching for top candidates easy for employers. The app had high rates of monthly views, matching improved, and candidates were pleased with the UX.

“We’re really satisfied with their service. They’re awesome communicators and always respond quickly. Our platform has several thousand views every month, and we’ve seen an uptick in the matching algorithm.” – CEO, Professional Training & Coaching Company

Radial Development Group, LLC developed a mobile app for a connection management company. The company needed to address certain weaknesses in their pipeline. The company was able to reach their desired goals alongside Radial Development Group, LLC.

“Even though they were not specifically a mobile development vendor, they had a broad range of experiences among their team members and were able to leverage that to solve challenging problems around dependency management and certificates.” - CTO, Connection Management Company

A product agency tapped Begin, LLC to partner with them for several client projects that involve web development and mobile app development. One such project involved developing two mobile apps and the front end for the web platform of the client. The Begin team developed the entire app and front end. The engagement enabled the agency to take on more projects and extend client contracts.

"Working with Begin had a major positive impact on our business." - President, Product Agency