LAST UPDATED Sep 17, 2021

Top React JS Development Companies

Best React JS Web Developers
47 Firms
Top Web & Mobile App Development Agency
4.9

21Twelve - a disruptive web & mobile app development company creating cutting edge sites and apps to solve everyday problems, simplify frustrating activities, and bring endless enjoyment into the palm of your hand.

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  • $1,000 +

  • 50 - 249

  • $25 - $49 / hr

  • Founded 2017

Custom software development that makes real impact
4.9

We are a software development company specializing in custom enterprise systems, AI applications, SaaS solutions, and complex web systems.

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  • $1,000 +

  • 50 - 249

  • $25 - $49 / hr

  • Founded 2000

Technical expertise for great products
4.9

Xmartlabs is a Digital Product Studio that provides end-to-end product development services as well as highly-specialized technical consulting. Our diverse and talented team follow an agile process to blend with your in-house team in perfect sync. We partner with startups and forward-looking companies pushing the boundaries of consumer and enterprise software, fintech, and health tech.

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  • $10,000 +

  • 50 - 249

  • $150 - $199 / hr

  • Founded 2012

Experience. Expertise. Integrity
4.9

Our cross-functional team works in an agile process to design, develop and launch your products. From your custom software development plan, to your interactive

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  • $25,000 +

  • 10 - 49

  • $100 - $149 / hr

  • Founded 2013

Your Unfair Advantage In Building SaaS Products
4.9

Reach out the HyperTrends which is a SaaS/Software/Digital Innovation Agency based in Los Angeles and Orange County that has the experience of building software in 11 different verticals and helping small businesses to grow revenues using high-quality agile software development and product management strategies.

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  • $50,000 +

  • 10 - 49

  • $150 - $199 / hr

  • Founded 2006

Custom Cross Platform Mobile App Development
4.9

To get started on developing your own Mobile App, AB Mobile Apps is here to answer all of your questions, and to help focus your market’s attention on your business via your own custom-built cross platform Mobile App.

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  • $25,000 +

  • 2 - 9

  • $100 - $149 / hr

  • Founded 2009

Dependable Technology Services
4.9

Affirma is a World-Class Creative Agency and Full-Service Consulting Firm. We offer prototyping, visual design, social media, and advertising services.

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  • $5,000 +

  • 250 - 999

  • $100 - $149 / hr

  • Founded 2001

Providing Solutions That Make a Difference
4.9

Competition is fierce out there – your customers hold you to increasingly high standards. And the market is changing, too. You have to stay on top of it all, from new channels to altered consumer behaviors. We’ll help you find revenue streams that range from incremental to disruptive, refreshing and evolving, to fulfil your customers’ unmet needs, which might mean new products, expanded offerings or an entirely different business model.

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  • $10,000 +

  • 1,000 - 9,999

  • $25 - $49 / hr

  • Founded 1993

Technology Partner You Can Rely On!
4.8

We Build Custom Applications that Work Great and Look Amazing.

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  • $10,000 +

  • 50 - 249

  • < $25 / hr

  • Founded 2008

FEST Technologies - Custom software development
4.8

We offer a wide range of services for SMEs and startups. Our main service line is .Net maintenance retainer. Contact us to learn more.

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  • $5,000 +

  • 2 - 9

  • $50 - $99 / hr

  • Founded 2015

We help other businesses achieve success
4.8

GroupBWT is a software development company that provides Web & Mobile Development, Data Mining & Enrichment, Processing & Visualization, Machine Learning & Artificial Intelligence services since 2009

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  • $5,000 +

  • 50 - 249

  • $25 - $49 / hr

  • Founded 2009

Software Development & Cloud Services
4.8

Delivering great software that transforms organizations with high-end consulting services & industry-shaping thought leadership. We make your mission ours.

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  • $10,000 +

  • 10 - 49

  • $100 - $149 / hr

  • Founded 2001

Icreon Powers Next-Gen Digital Customer Experience
4.8

Icreon is a digital solutions agency specializing in providing digital transformation services and custom software solutions for growing businesses. Learn more.

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  • $50,000 +

  • 250 - 999

  • $50 - $99 / hr

  • Founded 2000

Digital products for the businesses of the future
4.8

We are an early stage, digital start-up studio that helps ambitious founders establish profitable business models and accelerate to Series A

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  • $25,000 +

  • 50 - 249

  • $25 - $49 / hr

  • Founded 2011

AI and Digital Transformation Company
4.8

Leapfrog is a full-stack technology services company focused on product engineering, data engineering, and AI. Hire us to scale your technology innovation with high performing remote engineering teams.

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  • $25,000 +

  • 50 - 249

  • $50 - $99 / hr

  • Founded 2010

The Right Technology for any Project & Business
4.8

Transforming your business with smart solution. We believe it is important to bring rigor and easily accessible information all in one place.

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  • $5,000 +

  • 10 - 49

  • $25 - $49 / hr

  • Founded 2012

Grow your business with bulletproof software
4.8

Mutations Limited is a group of experienced technology experts who are proficient in full stack software development, security audits, app design, mobile app development, product management, QA testing and more.

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  • $5,000 +

  • 10 - 49

  • $150 - $199 / hr

  • Founded 2016

Reliable + Results-Driven Software Development
4.8

Hire a professional web application and software development company. We're a development services company in Atlanta, USA that helps grow your business.

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  • $1,000 +

  • 10 - 49

  • $25 - $49 / hr

  • Founded 2008

Delivering scalable Tech Solutions since 1999
4.8

We offer a complete suite of services from Software & Mobile App Development, Digital Marketing, Platform Integration to Hosting & Infrastructure and much more.

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  • $25,000 +

  • 1,000 - 9,999

  • $50 - $99 / hr

  • Founded 1999

Development & Support for Ruby on Rails Apps
4.8

Planet Argon is a Ruby on Rails development agency specializing in maintenance and support for existing Rails apps. Based in Portland, OR, Planet Argon has been

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  • $50,000 +

  • 10 - 49

  • $150 - $199 / hr

  • Founded 2002

What Does a React.js Development Company Do and How to Choose the Best Contractor

If you need high-quality interface development, you should hire a React.js development company. High-quality React.js development is crucial to the success of any project.

How to Сhoose a React.js Development Company

The success of any app or web service mainly depends on its interfaces. This is why frontend development is expanding rapidly today. New tools appear almost every month while existing ones are being improved.

Even experienced developers often outsource ReactJS development companies when it comes to interfaces. Thus, today, we'll tell you why React.js is worth using, and how you can choose a good contractor.

Brief React.js Review

React.js is one of the most popular open-source JavaScript libraries designed for building interfaces. The technology was released back in 2013. Today it's developed and supported by FB/Instagram and other major companies.

Unlike other similar tools, React.js is a library, not a framework. This gives more freedom in the development but, at the same time, requires a higher level of knowledge from the developer. On the other hand, it's the flexibility, necessary for large constantly developing projects, that was one of the reasons for the emergence of React.js.

Facebook, Yahoo! Mail, Dropbox, Instagram, and other popular interfaces have been implemented with this tool.

What React.js Development Companies Do

React.js can be used both for web projects and mobile app development. Accordingly, companies that use React can fall into several types:

  • Web studios build turnkey websites of varying complexity or do various stages of web development, including interface design;
  • Firms mostly specialize in mobile development. They use React.js development to create user-friendly interfaces in apps;
  • Large IT organizations handle projects of any complexity, including mobile and web development;
  • React.js consulting companies are mostly small teams of experts, providing outsourcing and consulting services in the area of interface development. They are often into turnkey projects, as well.

Today it's much more profitable to address a freelance specialist than educate your own. Therefore, choosing a React js development company is becoming more and more relevant.

ReactJS Web Development Company Services

When it comes to web projects, interface developers must know how to properly apply the following tools, languages, and principles:

  • ReactJS library tools;
  • JavaScript, HTML, CSS programming language;
  • The concept and principles of working with DOM.

In addition, developing a high-quality interface is impossible without the ability to understand user needs. Then there's also working with prototypes, design sketches, and page making.

ReactJS App Development Company Features

Most app development tools, knowledge, and skills are almost no different from working with web projects. The main feature of working on iOS and Android is using React Native. The platform is growing rapidly, with frequent updates and evolving functionality.

In addition, React Native companies must understand the nuances of working with mobile apps. As a rule, you have more screens here, and the requirements for user-friendliness and interface simplicity are tougher.

Questions to Ask Yourself and a ReactJS Development Company

The answers to the following questions will help you understand if you need a React.js development company or not. You will also learn what to pay attention to when choosing such a company.

1. Do you need a turnkey project or an interface?

You should know that there are other interface development tools like Vue and Angular frameworks. In some cases, they can reduce the cost of the project or development time without sacrificing quality. Thus, if using React.js isn't principal, you might want to let the developer choose the framework. And the result will be the same.

2. What kind of interface do you want: mobile or web?

Remember that React.js development companies can handle web projects or mobile app development. These areas do not always go together within the same firm, and you will need different React tools for them.

3. Does the contractor have successful cases on React.js?

Study your chosen team's portfolio, download their apps, and assess the efficiency/usability of web projects. You can use the React Developer Tools extension (Chrome DevTools) to detect React.js on websites you visit.

4. Do you have enough money to hire a React.js development company?

You should clearly understand your capabilities and take them into account when choosing a contractor. Not everyone can afford a reputable web development company that usually deals with the biggest projects. However, you can always find experienced and reliable contractors in the middle class. In addition, enterprises from different countries evaluate their work differently.

5. Will your cooperation be smooth?

In any field, it's essential that you and your partners have similar values and understand each other really well. Make sure to talk to React.js development company representatives (and, preferably, your project team, as well) before you sign a contract. Plus, if you are going to outsource interfaces exclusively, you want to understand how your developers will interact with a contractor's leading expert.

In addition, when choosing a React.js development company, you want to study as many customer reviews as possible to gain some insights. Make sure you can trust your future contractor to get what you expect.

FAQ

Why ReactJS was created?

Facebook started developing ReactJS in 2013 for their own needs. Other large projects that require regular interface updates and high flexibility have joined them later.

What is ReactJS used for?

ReactJS is used for quick and reliable frontend web development, for web projects and apps. You can also find various tools for iOS and Android development here.

Is React.js a framework?

Sometimes developers call ReactJS a library, sometimes - a framework. However, "library" is still more accurate since frameworks have a more rigid structure and certain limitations, which ReactJS doesn't have.

Is it worth using react JS in 2021?

Yes, ReactJS is known to be one of the newest and most promising tools available today. Fresh updates and new components are constantly being released. Plus, the open-source project is also supported by major companies and millions of developers worldwide.

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