React.js Development Services & Company

Our React development company has been providing React development services since 2014. We delivered 200+ projects to clients from 25 countries. Build your React development team today.

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React.js Development Services & Company

Client testimonials

«We now have a core team of engineers at Relevant who work for us full-time and are supplemented by 4 or 5 engineers with different skillsets when and if required.»

Paul Carse
CTO and Co-founder of Life Moments

“Working with you guys has been fantastic. The level of expertise of your development team is as good as the people that we get in the UK. You’ve got a fantastic talent base of programmers. It’s more challenging to find people of that quality in the UK.”

Cassian Harrison
Co-founder of Splink Industries and My Theory Test App by James May
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React.js development services we provide

React.js development from scratch

You can outsource React development to our React development company, and we'll build a project from scratch for you.

Migration to React

Our experts will perform high-quality migration to React from any other frontend framework.

Dedicated React.js development team

Hire dedicated React.js developers to fit your needs at scale. They are also skilled enough to refactor poorly written code by another React.js development company to meet industry standards.

React Native app development

Experience the full power of the top cross-platform mobile app development framework.

Other React.js development services we provide
  • • React Native App Development
  • • Progressive Web Apps Development
  • • React.js Support And Maintenance
  • • React Native App Development
  • • React.js Customization Services
  • • React.js Social And Interactive Apps
  • • React.js Enterprise Application Development
  • • React.js E-commerce Development
  • • React.js Portal Development
  • • React.js Plugins & Components Development
  • • React.js UI Development
  • • React Web Design
  • • React.js Template Creation

How is our React development company different?


Agile approach

Scale your team up and down, depending on your needs. You can add part-time specialists when and if required.


Dedicated project manager

Work it through with our project manager when outsourcing React development to build better relationships with our team and manage administrative tasks.


8.9/10 client satisfaction score

We are a top-rated React.js development company. Our clients highlight our ability to build great personal relationships with them, except for the excellent code quality.


92% of the company – senior and middle engineers

We invest in attracting the best talent from the market. We hire only strong middle and senior React.js developers and no juniors.


20% employee turnover rate

We are interested in long-term business relationships. Our employees stay with our clients and us for years.


Thinking of the end user

Our thoughtful UX designs and usability practices create experiences that benefit customers.

Projects we've built with React

Developing a SaaS platform that assists UK homebuyers
View case
Gamifying customer support with a Zendesk app
The Netherlands
View case
Visualizing air quality sensor data in a web dashboard
View case

Engagement models

Decide which model best suits your project


You are located in Ukraine, tell us about the code quality of Ukrainian developers.

SkillValue recognized Ukrainian software engineers among the world’s best, with an average score index of 91.26%. Besides, software development teams from Ukraine scored an average of 88.7% across all HackerRank challenges. This makes Ukraine a great place to outsource React.js development services and find React.js development company.

How much do your React development services cost?

Although rates vary with respect to developers’ experience, at Relevant, you can hire React.js developers starting from $50 per hour. Our React.js developers are ready for hire.

Do you sign an NDA Document for my project?

Yes, we do.  We perfectly understand your need to keep your valuable business information safe. We will sign an NDA document and provide you with other key documents in software development outsourcing.

Do you use TypeScript with React.js?

Yes. Our React development company may provide you with TypeScript development services along with React.js if needed.

Can you build mobile apps with React.js?

React.js is mostly used for React web development, but you can build mobile applications with React Native. We provide React Native development services too.

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Do you know that we helped 200+ companies build web/mobile apps and scale dev teams?

Let's talk about your engineering needs.

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