Top 100 JavaScript Development Companies in New York City

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

Tivix worked with an intergovernmental military alliance to rebuild a mission-critical software system. If and when submarines in international waters come into distress, the organization plans and coordinates the rescue effort of such submarines. Tivix was given complex system requirements and asked to come up with an effective design and solution that would replace a decades-old system. The client was incredibly impressed at every stage of the engagement, with Tivix delivering detailed systems and user-experience design, followed by robust development and operationalization of the system internationally. 

“Every single milestone has been met exactly on time. The company has met every requirement, both in terms of time as well as quality.” Maritime Service Owner, Intergovernmental Military Alliance

iTechArt Group is assisting with the development of a content management software for video advertisements. The team is building the system to accommodate multiple social media platforms like YouTube and Facebook.

“The engagement has been very successful overall thus far. The work we've been able to quickly launch wouldn't have been possible without iTechArt's help. In addition to the quality of their code, they've also integrated extremely well into our team, adapting to our internal processes relatively seamlessly.” – Founder & CTO, Software Consulting Agency

Unified Infotech developed a home management platform that needed support creating a more user-friendly UI. They provided development, design, SA, and QA services for the client. They leveraged multiple technologies and went well beyond the original scope of work to create an improvement from the previous product. 

the team went above and beyond once we set parameters for the process." – Co-Founder, Home Management Platform

Alley Interactive worked on WordPress implementation for a nonprofit research agency. They consolidated content from several websites and databases onto a single WordPress site and CMS. The project included back-end development, data migration, and ongoing support. The client appreciated their direct communication throughout the project.

“If we have a question or see a bug, you're talking directly to the person that knows how to fix it. They're not so caught up in the code that they can't communicate effectively with clients.” – Associate Director, Nonprofit Research Agency

Zco developed an app for both iOS and Android to showcase the products of a large electrical parts manufacturer. Their prompt turnaround and response time, competitive pricing, and immaculate deliverables resulted in an experience that was “overwhelmingly positive.”

"Their technical expertise is spot-on and they're highly responsive, even post-launch." – Senior Product Manager, Manufacturing Company

Umbrella IT developed the second iteration of a popular social media networking app. While the new version hasn't launched, it's already received positive feedback. The client is confident about its success. 

"They [Umbrella IT] work at the highest level possible. If you know what you want, it will be built exactly per your specifications." – CEO, Social Networking App

Cantilever delivered new UX design and e-commerce for a website for a creative agency. Their Linux-based backend supported a standard HTML, CSS, and Javascript frontend. They were responsible for interaction design and animation. The client appreciated their communication and organization.

“Their code is clean, and they have an amicable, organized approach. Contract negotiations with them were flexible; they’re particular about their product, and they set themselves a high standard.” – Co-Director of Interactive Production, Creative Agency
 

Propeller developed and designed a creative website for a photography studio. The team also performed digital marketing services, crafting keywords. SEO campaigns improved search results and mobile usage.

"Propeller created a platform that represents me, my taste and artistic level."– Founder, Photography Studio

End Point was hired by a tourism company to help with e-commerce web app hosting, security, and hardware maintenance. Since working with End Point, the client has experienced all-time highs for website traffic.

“End Point is very transparent about what they're working on in terms of providing complete details. We don't have any surprises at the end of the month as a result. They're very dependable, delivering what they promise every time.” – Director of E-Commerce, Tourism Company

Adchitects built a website and mobile app from scratch for a social app company. They were fully responsible for the UX and UI design of each product and used WordPress to build the client's website. The client was impressed with their transparency and communication. 

"They’re very transparent about project scope and timelines. They have good service and communication skills, and the team is always very polite and friendly. They care about their customers." – CEO & Founder, Social App Company

Fingent developed a mobile and web app that measures the talent of college athletic recruits. The goal of the app was to help high school athletes with college admissions by helping recruiters easily identify their skills. The initial feedback of the app was positive and several college coaches have shown interest in using it.  

"Deliverables were timely and completed in a highly professional manner. The project manager was fantastic. I never had to ask for anything twice. I have nothing but the highest regard for them." – Founder, Sports Tracking Company

NFQ Technologies provided support for an e-Commerce development agency. They used NFQ Technologies used Django, Python, JavaScript, CSS, and other languages to support the client, which has received positive client feedback since working with NFQ Technologies.

“We've received very positive reviews from clients regarding the updates and work they've done. NFQ Technologies has been very professional throughout the engagement, helping us better serve our clients in the process.” – Head of Project Excellence, E-Commerce Development Agency
 

A California-based content discovery startup hired ArcTouch to design a content discovery platform and iOS app. They provided feedback on the startup's user stories, created wireframes, and developed the platform and app. The project was completed ahead of schedule.

“We’re astonished at the quality of the work. We’re a small company, and we weren’t expecting the same level of service a Fortune 500 company might enjoy. We were amazed by their design and the effort that went into every screen.” – Senior Project Manger, Content Discovery Startup

A mortgage bank hired SJ Innovation to work on both front- and backend of various web-based platforms, including the bank's customized CRM, intranet, and some proprietary software that the bank provides to its customers. All of the development was done using WordPress, completely customized, and includes plug-ins to integrate with other systems. SJ Innovation met all expectations in performing these tasks.

"We’ve been pleased with the designs and capabilities of the finished products that they deliver." - IT Director, Mortgage Bank

Fueled designed a bidding-style app for a company that deals with nightlife reservations. They built the app from scratch, taking into consideration what the company wanted, as well as giving advice. The app had a lot of functions, such as a list of venues, submission options, and tools that allowed notifications to be sent from venues.

“They’re incredibly efficient in the work that they do and know what they're doing in design, coding, and executing their ideas. They have a great understanding of what's current and get things done very quickly compared to others.” – Founder, Mobile App

Lightmatter provided full-stack development services to create a data management tool. Utilizing Python, React, and Django, the team also built the platform’s UI/UX components and security features. They provided quality code, ultimately leading to a successful solution.

“One of the main reasons we were able to get so many high-level customers using our product was because of the delivery on all fronts, particularly security, that they facilitated.” — CEO, Tech Startup

AndPlus developed a web application for a risk management system for financial institutions and publicly traded companies. Throughout the development process, the team worked closely with product owners to understand the needs and develop major features and enhancements that were rolled out in the first version in 2015. AndPlus still supports the software throughout its lifecycle.

“I was very impressed that they were flexible to change their work methodology to fit what our needs were. ... They were always willing to change everything at the drop of a dime to make sure that they satisfied our needs. We profited from that type of relationship.” – Senior Project Manager, Data Management Analytics Company

ATTCK, LLC. redesigned the website of a non-profit. They migrated the client’s original Drupal site onto a WordPress platform, which allowed the majority of the site’s content to be edited by non-experts, a feature that was important to the client. The client was happy with the redesign and said that the new site had received positive feedback.  

“The website is definitely a success story. When we started working with ATTCK we cut our developer bill in half without losing quality.” – Former Digital Strategist, Non-profit
 

CemtrexLabs developed two Augmented Reality experiences for a beverage company to promote their sweepstakes and create memorable brand interactions. The team built them in WebAR with custom 3D models. The campaigns helped conversions skyrocket and added a new element of excitement to the company's marketing.

"They’re very confident and they have a solution for everything." — VP Experiential, Marketing Agency

Dom & Tom worked with a digital agency for a website redesign. Dom & Tom designed and tested code for requested features for the site. The agency felt that the Dom & Tom team was responsive and displayed impressive attention to detail. 

“Their staff was incredibly helpful. They follow up and they’re very attentive. They worked relentlessly to help us complete this project on time and within budget, which was phenomenal.” – Project Manager, Digital Agency

Nolte built an Android and iOS app for an educational organization using the Ionic framework. The app is the organization’s core platform and helps students study for a standardized test. The partnership is ongoing, with Nolte updating and maintaining the apps.

“The collaboration has always been fluid, and Nolte always replies quickly to us. I have no negative feedback in terms of project management.” – Founder, Educational Organization

After a wellness resort was acquired by another company, it needed to rebrand and hired IdeaWork Studios. The project included creating a new name and logo for the resort, updating its website to reflect the new branding, and launching an advertising campaign.

"The level of creativity they showed for a complete rebranding was impressive. We needed to take the resort in a completely different direction, and they did it very quickly. It was impressive what they understood about the brand and what they put forward from a presentation standpoint." – Director of Sales and Marketing, Wellness Resort

A B2B publishing company in the real estate industry approached Coalesce for guidance on creating a subscription model for its content and updating the overall online experience of its website. Coalesce got involved with user research, content strategy, wireframing, and frontend development, leading the project for the small publishing company.

“They are incredibly thoughtful and detail oriented. They really put a lot of value and emphasis on process and not skipping steps, not rushing. They’re very methodical.” – VP of Marketing, B2B Publishing Company

Perpetual is working with this financial services firm to assist in rebuilding its UI. The team planned the entire project, from the mockups to the detailed specs, and produced a .NET-based, real-time news services application, which is currently being QA tested by Perpetual.

"Users have received the platform extremely well. We’re very excited about how well it’s performing. We haven’t experienced any technical issues." – Product Management, Financial Services Firm

Buzzworthy Studio worked on a website redesign for a digital advertising agency. They developed a website using marketing materials and integrated the site with Google Docs. The client was impressed with the positive feedback the project received.

“In addition, we've gotten a ton of amazing feedback from friends, family, clients, and prospects about the stunning look and feel of our site. Our traffic increased, and our contact features gained us some incredible leads.” – Manager, Digital Advertising Agency

A car wash startup hired NewAgeSMB to develop its website and its Android and iOS mobile apps for customers and washers. NewAgeSMB delivered both the website and the apps and are now continuing to provide maintenance services.

"The team took my vision and made it into a product." - CEO, Car Wash Startup 

Theodo UK developed the platform for an online marketplace after the previous developer proved unsatisfactory. The team took wire frames and a prototype provided by the client to build a minimum viable product, using AWS, React, Python, and Django for the framework. The client spoke highly of the engagement.

“They’re extremely knowledgeable and work closely with us to make sure we know what’s going on. Their team is phenomenal and have both dev and interpersonal skills.” — Executive, Digital Office Marketplace

Utility developed a live streaming platform for a new network. The project included UX/UI design, live streaming architecture, and search filtering. As a result of Utility’s work, the network received positive reviews and was acquired by a big name company.

“We provided our goals, told them what we needed, and collaborated during the rounds of UX designs, but they took it all from there and steered the strategies around how to implement and execute everything digitally.” – Director, Network

Compose[d] provided SMM and content development solutions for a beauty brand. This included collateral creation and digital assets. The brand was able to reach target engagement levels with their most recent campaign.

“They’re attentive to our needs and deliver on them.” - Head of Marketing & Communications, Beauty Brand