Top 100 JavaScript Developers

WillowTree worked with a cinema to maintain an existing mobile app and eventually rebuilt the app, integrated a loyalty program, and made it easy for customers to purchase tickets. The client appreciated WillowTree’s willingness to work with an existing app instead of redeveloping the whole project.

“The biggest success for us was having WillowTree take over the app. After that, they integrated our entire loyalty program into it, which was already the biggest of its kind in the movie industry.” – Vice President of Media, Cinema

A nonprofit community organization hired ImageX to upgrade their website from a poorly managed Drupal 6 build. The community had three goals for the website: improve their web presence as a sales tool, reduce web development and maintenance costs, and integrate Drupal 8 capabilities. ImageX migrated the site to an Open Y platform and integrated the necessary Drupal 8 features to reduce maintenance efforts and enhance the site's functionality. The client was pleased with ImageX's work and now relies on them for other development projects. 

"We didn’t just build a website together; we built a relationship that has strengthened over time and will contribute to the long-term success of our organization." – Marketing Director, Community Organization

An independent consultant hired Monterail to assist in developing a cloud based e-publishing tool. Using Javascript and Ruby on Rails, Monterail delivered a minimum viable product with drag and drop functionality. 

"They would release versions that could be tested and what I enjoyed was the responsiveness of their team. The process was very lean and simplistic." — Founder, e-Publishing App

XWP developed a WordPress plugin for a large tech company. The company had XWP write the code of the plugin. The plugin has since had over half a million installs since its release.

“XWP is versatile in being able to identify external or internal talent needed at any moment in time for anything, from extra plugin development to catering an event and everything that happens in between.” - Partner Development Manager, Large Tech Company

Miquido completed a mobile app for an integrated tourism company to help them stay competitive. Miquido was responsible for the UI design and developed the app using Swift & Objective-C for iOS and Kotlin & Java for the Android platform. The app improved customer experience and helped the travel company to boost their revenue.

“They are quick to respond to our needs and ideas, being primarily client-oriented and willing to suggest their improvements and ideas” – E-Commerce Coordinator, Travel Company

Moove-it worked with a 3D visualization studio in need of a partner to complete custom programming. The 3D visualization creates artwork and digital assets, while Moove-it provides programming in JavaScript, Ruby on Rails, C++, and other languages to ensure that the end product is fully functional for users. As a result of its partnership with Moove-it, the 3D visualization studio has met more deadlines and provided better service to clients. 

"When we brought in Moove-it, they were introduced to our client as a strategic partner, and we involved them in [meetings]. The process was seamless." – CEO, Visualization Studio  

The Software House developed booking software for an airport transportation company. The system, to which they added an admin panel, automated operations and determined the most efficient routes to the airport and expanded their potential persons serviced more than fourfold. 

"Previously, one person could serve 80 people per day, planning the route and informing clients of the pickup time. We have increased our efficiency. Now, we are able to serve 450 people or more per day." –Product Manager, Transportation Service Company

Experion Technologies developed a custom CRM system for a large multinational food exporter that improved productivity by capturing sales metrics and tracking field sales. Aside from increased visibility, the client also benefited from Experion’s supportive take on project management, timeliness, and professionalism.

"Our project with Experion has definitely been successful. We've seen its benefits, especially for our ice cream business." – Senior IT Manager, Food Exporter

Bacancy Technology worked with a food delivery service to create a mobile app that delivers groceries, alcohol, and prepared food. They developed both customer- and supplier-side apps, a website, and a server database. The client was impressed with how well Bacancy Technology understood the project and tailored services to their specific needs.

“They have a large yet competent team, so every field of development had a different expert working on it. … This feature was missing from other organizations I communicated with.” – Founder, Food Delivery Service

S-PRO was hired by a hockey league in order to develop a mobile app for the organization. The client wanted a mobile app that would allow hockey players to easily schedule events and collect payment from team members. S-PRO developed the app for Android and iOS using React and also designed the user interface. The client was impressed with the team at S-PRO's responsiveness despite a significant time difference. 

"Anytime I needed anything, they were available for me, and that’s really important." - Managing Director, Hockey League 

QED42 built an app for a real estate listing company. They used Ionic to create apps for Android and iOS that employed Google APIs including Google maps and analytics. The apps gave real estate buyers the information they needed to browse listings and communicate with sellers. The client was happy with the final product and reports that his business is growing quickly.

“They solve my problems immediately. I have confidence and peace of mind with QED because of their team and attentiveness.” – CEO, Real Estate Listing Company
 

Neoteric established a paperless workflow for an automotive company by developing a microservices application. The application has several modules and includes functions that allow customers to choose parts; help contractors and warehousing facilities; process payments; send and share documents; trigger the company's system to send emails; and manage customers' overall interactions with the company. The app has caused revenue to grow exponentially. 

"Now that I've worked with Neoteric, I understand what was wrong with previous vendors." – CEO, Automotive Company 

Q agency worked with an online boat rental platform. They provided developmental assistance for multiple projects. They revamped an inflexible CMS and created an updated account management system from scratch, and are currently adding features to it. After the project was completed, the client integrated it immediately and saw an increase in conversions.

"From our first interaction, Q agency was quick to build a good relationship with us through their fast communication. Their team follows up on every email. They are prompt and professional with every task, and they are accommodating to our needs." – CTO & Co-Founder, Boat Rental Platform 

A political polling startup needed help laying out its app and getting it to market. CognitiveClouds developed and designed the app, which aimed to give people a voice in politics by collecting data from the public to share with the political community. They also helped the client publish the Android and iOS versions in the App Store and Google Play Store. 

"I found the development team to be honest and responsive. When mistakes are made, they owned up to them and fixed them. CognitiveClouds impressed me by taking ownership of the project from the beginning and being very committed to all delivery dates." – Founder, Political Polling Startup

TechMagic provided web and mobile application development for an enterprise-level startup in the HR tech domain. TechMagic created various applications using JavaScript and Native Mobile stack. The partnership is ongoing. 

"They’re professional, honest, and trustworthy. They're knowledgeable about the different technologies we've been working on. It's easy to talk to them." – SVP, HR Software Company

DIGIS developed a platform for a media company. They created a platform that would allow the client to make changes to all 27 of the sites that they controlled. They performed an architectural migration to Microservices and connected all the sites to the same backend. The client was very happy with the finished product and impressed with the quality to cost ratio of the work.

“They offered very competitive prices and adhered to the schedule we set.” – Senior Contractor Manager, Media Company
 

A therapy organization was in the middle of a development project when their provider left the engagement.  Freshcode picked up where they had left off and completed the client's WordPress site. Their final deliverable has markedly improved speed, and functionality, and includes advanced features. 

"Our revenue has doubled in the last year, thanks in part to the fact that they developed a platform that’s leagues ahead of our competitors. We had a number of problems with our previous vendor, but the project has run smoothly ever since FreshCode took over." — Founder, Therapy Organization

Rootstrap provided business strategy consulting and software development services for a music startup in the US. The client wanted to build a digital platform to connect local musicians. Rootstrap's team outlined an MVP process and monetizing strategy. Since the prototype was introduced, the client has received considerable funding from outside sources, as well as positive feedback from professional musicians.

"Their work looks good and we’ve learned a lot. They’ve been great to work with." – Founder, Music Startup

One of Toptal's most impressive clients is a machine learning and artificial intelligence platform for marketing. The sophisticated nature of the project required expert developers familiar with cutting-edge technology and complicated programming principles, and Toptal's freelance screening service enabled the client to find freelancers with the right skills quickly. The varying needs of the project made Toptal the right choice because they could easily expand and shift the focus of their development team.

"Toptal made it easy to work with the team. If there was ever anything wrong, it was fixed quickly." – Co-founder, Advertising Technology Firm

A client management company engaged Yellow to complete an unfinished app and develop a client-collaboration portal. Building on a previous vendor's work, Yellow completed the app using Ruby on Rails, adding a login portal, cybersecurity measures, and other new features. Since then, the app has received unanimous praise for its simplicity and user-friendly functions.

"Yellow stands out because they’re invested in the results and clients. " – Co-Founder, Client Management Platform

Softermii partnered with a boutique tech agency in creating multiple mobile app development projects. The client wanted a mobile app that allowed users to find apartment homes easier. The team at Softermii built an Android app that facilitates the search for real estate, and the final product met every requirement. The app's features included directories, custom filtering, and multimedia content. After seeing the quality of the first project, the client hired Softermii to develop three additional Android apps. The Softermii team was diligent and devoted throughout the project. 

"They really understand the importance of their work for the client. It’s not just writing some code and pushing it to the repository: this is going to go to real users and what to do matters. I never had to remind them of that."-Founder & CEO, Boutique Tech Agency 

Binary Studio worked on end-to-end development for an event ticketing platform. They rebuilt a large portion of the platform using ASP.NET and Angular MVC structure. They modified and implemented wireframes, and introduced a payment integration. The client appreciated how their initiative throughout the project.

“They produced an excellent product after dealing with a limited initial scope and a language barrier.​” – Technical Director, Event Ticketing Platform 

Clockwise Software assisted a software development company in developing four mobile applications and providing a variety of testing services. They implemented systems through React, Redux, Redux-Saga, and Node.js. With Clockwise's assistance, the client was able to report two apps received 100% code and branch coverage, with another getting 99.4% code coverage.

"The fact that Clockwise’s CEO has spent as much time and effort in training, personal improvement and quality assurance for his team as I do is something I consider very valuable." – CEO, Software Development Company

Chetu built a cloud-based software for a company in the fitness industry. The software combines all systems on one platform using Java, HTML, PHP, and MYSQL.

“They're very diligent regardless of what part of the project they're working on and how many complications they encounter. They're ready to work on anything we ask from them and deliver good results.” – Owner, Fitness Service

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

Railsware developed a mobile application for a purchase tracking firm. They completed the front and back-end for the online database. Railsware delivered an app that serves as a compelling proof-of-concept to solicit investor capital and spur business growth. 

"Railsware's post-project support is really good. Even after completion, they're always available to answer quick questions or concerns."–CEO, Purchase Tracking Firm

PopArt Studio created a website for a B2B marketing startup. They designed the site to the client’s specifications, giving it a simple and easy to navigate layout, easy to use contact forms, and an innovative order management solution. The client reported that the site had received a lot of positive feedback and that their traffic had increased dramatically. 

“Their team exhibits a high level of commitment and professionalism. They simplified all complexities by guiding us through the process in a timely and respectful way.” – CEO, B2B Marketing Startup
 

Reaktiv provided WordPress development services for a university. Their team built a website and integrated third-party systems into its infrastructure. The partner was very happy with the site and seamless collaboration. 

"The number one thing for me is their level of expertise." –Director of Web Solutions & UX, University

P2H Inc was hired by a financial services company to create a website marketing an upcoming event. P2H Inc created an interactive, responsive website based on sketches the client provided. The client appreciated P2H Inc's affordable pricing and ability to stay on budget.

"We were impressed with their fast turnaround, simple communication, and effective work process. The deadline was met in almost half of the expected time and the result was pixel perfect." - Digital Producer, Financial Company

DashBouquet Development developed a new mobile app that tracks horses' health. They integrated the legacy version of the application to a React Native framework They have only done small testing, but the client is optimistic and impressed with the work. 

"They’ve [DashBouquet Development] proven that they are capable of making a well-structured and well-architected app from scratch using a cutting-edge technology." – Co-Founder & CTO, Horse Tracking Technology Firm