Top React Development Companies in Köln

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List of the Best React Development Companies in Köln

Are you looking for the best React Agency for your upcoming project? We have a list of 164 React Development Companies. This list contains matching case studies and references, 3,619 customer reviews, hourly rates, team size and much more. Use the appropriate filter options to find the best React Agency for your business requirements.

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  • 1,001-5,000
    > 10,000 €
    25 € - 49 €

    15% React JS

    Andersen is an international custom software development company with a strong focus on technology-intensive industries. Since its foundation in 2007, the company has opened more than 16 development centers and 16... Read More
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  • 1,001-5,000

    10% React JS

    Vention is a global software development company with headquarters in the USA and further locations worldwide. We support both startups and already established companies from a wide range of industries with the dev... Read More

  • 51-200
    > 10,000 €
    25 € - 49 €

    20% React JS

    Lionwood is a team of digital experts who are passionate about creating innovative, effective and impactful software solutions. We put our clients first and ensure that we deliver outstanding digital products that... Read More

  • 51-200
    > 50,000 €
    50 € - 74 €

    30% React JS

    Rolique is a software development company with 9+ years of expertise and 110+ successful projects. We transform products' tech foundations to make solutions s... Read More
  • Globaldev

    VERIFIED
    Attractive Pricing

    201-500
    > 50,000 €
    25 € - 49 €

    10% React JS

    About Globaldev GroupGlobaldev is an international digital agency with more than 12 years of experience in custom web and mobile development. Our team of more than 250 members supports start... Read More

  • 11-50
    > 50,000 €
    100 € - 149 €

    45% React JS

    Hi. We're Becklyn. As a digital agency, we do exactly what it takes to create wonderful digital products: customer experience design, product engineering and digital growth marketing. We are a team of over 36 Digit... Read More

  • 51-200
    > 25,000 €
    100 € - 149 €

    10% React JS

    We are more than a service provider, we are a partner to our customers. Good source code drives us, because we develop software out of passion. This passion is our core competence. Our employees are experts in thei... Read More

  • 201-500
    > 10,000 €
    25 € - 49 €

    10% React JS

    Instinctools is a software product development and consulting company with headquarters in Germany and the USA.Powered by 350+ seasoned in-house professionals located in development hubs in... Read More
  • Huboxt

    VERIFIED
    Attractive Pricing

    11-50
    > 10,000 €
    25 € - 49 €

    30% React JS

    Huboxt is a custom software company that transforms the concept from your mind into a product.Our services include:Web and mobile developmentCustom softwar... Read More
  • Implex

    VERIFIED
    Attractive Pricing

    11-50
    > 10,000 €
    25 € - 49 €

    15% React JS

    Implex is a custom web and mobile development partner for tech leaders of startups and scale-ups who are driven to develop sustainable and impactful products. Our community of top engineers, managers, and domain ex... Read More

  • 11-50
    > 10,000 €
    25 € - 49 €

    5% React JS

    Join our league of satisfied customers and experience the innovation! Quality, reliability and long-term cooperation! 🏢 Headquarter in Berlin and Office in Coburg. Our Scrum team consists of AWS certif... Read More

  • 11-50
    > 25,000 €
    100 € - 149 €

    20% React JS

    We are muse case GmbH - a UX design & technology studio in Stuttgart. The core of our work is full-stack software development, UX/UI design and AI engineering.We develop customized software products, des... Read More
  • Voypost

    VERIFIED
    Attractive Pricing

    51-200
    > 10,000 €
    25 € - 49 €

    100% React JS

    Voypost was founded by tech entrepreneur Nikita Sviridenko and started its story in 2019. Two years after working on a startup product and dozens of experiments, we realized that we actually know enough about how a... Read More
  • Movadex

    VERIFIED
    Attractive Pricing

    51-200
    > 10,000 €
    25 € - 49 €

    35% React JS

    Why put up with technical and implementation nuances when you can delegate the delivery of your cutting-edge product and focus on your business development instead?Movadex is your best partner with digit... Read More

Compare Top React Development Companies - Guide and Category Winners

In the world of business strategies and decisions, choosing a competent React Agency is a key element for growth and success. Feedbax provides a crucial platform to efficiently compare, engage and evaluate React Development Companies. With an extensive collection of over 3,619 customer reviews, Feedbax provides a deep insight into the performance of providers. This platform makes your search for the ideal React Agency much easier, with a focus on the most competent, best-rated and attractively priced companies.

To get an overview of the diverse range of React Development Companies on Feedbax: Currently, about 164 React Development Companies are currently rated. This company offers its services to a wide range of clients, from well-known companies such as MediaMarkt, Mercedes-Benz, Samsung, Johnson & Johnson and Daimler to smaller businesses. The industries in which it operates range from Banking and Financial Services and E-Commerce to Internet and Information Technology and Consulting.

Below we present the winner in various categories to help you in your search for a provider:

Feedbax provides a detailed platform to evaluate and select leading React Development Companies based on customer feedback, ratings and key metrics. It covers a variety of needs, including different budgets and focus areas, and helps you find the best React Agency for the growth of your business. Regardless of the size of your business, from start-ups to large corporations, Feedbax provides you with the insights you need to find the React Agency that can best deliver your specific project requirements within your budget.

Best Rated React Agency

If you are looking for the best React Agency, there are a few companies you should look into. They are known for doing excellent work and satisfying their customers. Currently, there are 51 React Development Companies that have a total of 443 Top reviews - 5 out of 5 stars. Remember, these are just some of the best. You can find more Top React Development Companies by using the sort and filter functions to see more options.

The top rated React Agency:

Rank
Company
Rating
Reviews
Minimum Budget
Size
1. IT-Couch GmbH 5.0 12 > 5,000 € 2-10
2. Implex 5.0 12 > 10,000 € 11-50
3. Tessafold e.K. 5.0 11 > 10,000 € 11-50
4. milkycode GmbH 5.0 8 > 1,000 € 2-10
5. Laracraft 5.0 3 > 5,000 € 2-10

1. IT-Couch GmbH

IT-Couch GmbH Logo
  • 2018
  • 2-10 Employees
  • > 5,000 €
  • 75 € - 99 €
  • METRIKS GmbH, VITEC Berlin, ENIO AG, ESC AG, USC CELLE

What clients say about IT-Couch GmbH

Review Quality Planning Costs Overall Recommendation
We use IT Couch permanently for website, social media etc. and are very satisfied. The employees are all very nice and competent. They often do more than they have to, really think their way into projects and develop their own ideas. The cooperation has always been very pleasant from the beginning. Here's to many more projects! Paul & Paula Academy GmbH & Co. KG
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5.0 Stars
While searching for a suitable agency to create a contemporary homepage, we became aware of IT-Couch. From the first contact until the completion of our project, we felt well understood and very well taken care of. Design and content were developed and discussed together in a workshop. The process was transparent at all times and the IT-Couch team was always approachable. We would like to thank them for the positive cooperation, in which every team member, regardless of the area of responsibility, contributed with heart and soul. Price specifications were met, despite special requests. We can recommend IT-Couch without reservation. Clauß Paal & Partner mbB WPG / StBEG
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5.0 Stars
We hired IT-Couch for the relaunch of our website. The communication was eye-to-eye right from the start. From the planning, execution to the final result, everything went very professionally. Special attention was paid to the design and structure of the website to achieve better indexing and higher organic visibility. However, great emphasis was also placed on the design and usability. After completion and payment, even minor changes were made without hesitation. For sure we will hire IT-Couch for our IT projects in the future. Vango 28
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5.0 Stars

2. Implex

Implex Logo
  • 2020
  • 11-50 Employees
  • > 10,000 €
  • 25 € - 49 €
  • Wikiart.org, Admit.me, CardKit, SmartLane, Best of Masters

What clients say about Implex

Review Quality Planning Costs Overall Recommendation
The app Implex created was successfully launched in the App Store and met all of the client's requirements. The team worked effectively under tight deadlines and was transparent throughout the process. The client was impressed with Implex's technical skills, attitude, and adaptability. CEO, CND
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars
Implex successfully created and launched a functional mobile app that gained positive feedback from users and a 3.6 rating in GooglePlay and AppStore. The team was reliable and demonstrated a positive work attitude. They were also communicative, flexible, and committed to the workflow. Language Adviser, Educational Institution
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars
Implex’s work has increased the client”s projects by 15% and increased user satisfaction and adoption rates. The team leverages a well-structured project management approach to ensure top-notch results. They are responsive, efficient, and committed to supporting their clients. Managing Partner & CEO, Video Gorillas
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars

3. Tessafold e.K.

Tessafold e.K. Logo
  • 2017
  • 11-50 Employees
  • > 10,000 €
  • 25 € - 49 €
  • Nouri Ai

What clients say about Tessafold e.K.

Review Quality Planning Costs Overall Recommendation
The development of a trading app that has a user-friendly interface and a stable functionality, as it must be kept simple and fast in the financial sector, this app was needed by our customers. Reliability and a strong know-how was given, whereby our wishes regarding the app have been given. CEO Investerceconsulting
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars
Working with Tessafold, I was particularly impressed by the versatility and in-depth knowledge of the team. It was evident that each member not only has specialized expertise, but is also able to think outside the box and provide interdisciplinary solutions. The strength of the team was evident in their ability to tackle complex challenges with ingenuity and efficiency. This has added significant value to our projects and I am grateful for the opportunity to work with such a talented and dedicated team. Founder Studio Frieda
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars
What impressed me most about working with Tessafold was their ability to develop innovative solutions while responding to our specific requirements. Their agile approach and ability to respond flexibly to changes showed their adaptability and commitment to the success of the project. In addition, the quality of the final product and the efficiency with which they delivered it was impressive. Tessafold proved that they not only have the required expertise, but also a deep understanding of our industry and our needs. Head of Document Solutions Horn & Görwitz GmbH & Co. KG
5.0 Stars
4.5 Stars
4.0 Stars
5.0 Stars

4. milkycode GmbH

milkycode GmbH Logo
  • 2015
  • 2-10 Employees
  • > 1,000 €
  • 100 € - 149 €
  • toys r us, Fressnapf, Vodafone, Werbezeichen, Seiko

What clients say about milkycode GmbH

Review Quality Planning Costs Overall Recommendation
The aim of the project was to develop a completely new frontend for our marketplaces. The frontend accesses our existing API interface in order to display the data. Special attention was paid to the use of the latest and most modern technologies, as well as a modern design, which is optimized for all devices. We were amazed by the expertise of the provider. milkycode delivers what they promise. The guys there really know their stuff and gave us the best possible support. The quality of the code and the overall result were outstanding. Managing Director Yachtino GmbH
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars
I met Christian recently because I was looking for someone to take a look at my website and make some changes. I have no idea about it. In our first phone call he was able to explain several things to me in a simple and straightforward way, so that I understood them. He was able to implement the first desired changes very quickly. I am looking forward to the further cooperation and I am looking forward to the things to come. A really great contact. Torsten Kotzan (TK Financing)
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5.0 Stars
I am glad to have met this person. I am not at all familiar with online stores and websites. I was very well advised, he took a lot of time (unfortunately I had to have it explained 100 times) He explained everything to me very precisely. Thank you for the very good advice and for the very good service. Unfortunately I cannot give more than 5 stars, I would like to give 10. Thank you thank you thank you Astrid Hövel
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5.0 Stars

5. Laracraft

Laracraft Logo
  • 2021
  • 2-10 Employees
  • > 5,000 €
  • 75 € - 99 €
  • Progressmaker GmbH, Z-Optimations GmbH, Heilpraktikerschule Likamundi GbR, Conwise GmbH, Kadsoft Computertechnik

What clients say about Laracraft

Review Quality Planning Costs Overall Recommendation
We found it good that the provider understood our basic core objective right from the start. By that I mean what basic functionalities we should offer and what our vision is for the product. For example, thinking about these questions first: Who are we targeting? What are the personas? What does the user need? This approach was very helpful. Managing Director ConWISE GmbH
5.0 Stars
4.0 Stars
5.0 Stars
5.0 Stars
On the whole, the collaboration was totally effective. The social and professional cooperation was flawless. You managed to communicate everything so that we spoke the same language and understood each other. For me, the collaboration was super pleasant and very effective. Manager Likamundi
5.0 Stars
4.0 Stars
4.5 Stars
5.0 Stars
We can not do without this solution at all! It has made us very fast and effective made. Compared to our competitors, we have been able to clearly stand out have been able to. As a result, we can operate very effectively anywhere in Germany. Our employees and the numerous temporary workers can follow our processes very easily processes very easily with their cell phones. They can easily call up their accounts, hours and the next location, and they can also apply for the next events in their area. events in their area. We are very happy. CEO Brezel Connection GbR
5.0 Stars
5.0 Stars
5.0 Stars
5.0 Stars

Best Rated React Agency in the DACH region

There are currently 44 React Development Companies in the DACH region that have a total of 340 Top reviews - 5 out of 5 stars. Remember, these are just some of the best. You can find more Top React Development Companies by using the sort and filter functions to see more options.

The top rated React Agency in the DACH region:

Rank
Company
Rating
Reviews
Minimum Budget
Hour Rate
Size
1. IT-Couch GmbH 5.0 12 > 5,000 € 75 € - 99 € 2-10
2. Tessafold e.K. 5.0 11 > 10,000 € 25 € - 49 € 11-50
3. milkycode GmbH 5.0 8 > 1,000 € 100 € - 149 € 2-10
4. WMI Media UG 5.0 3 > 1,000 € 100 € - 149 € 2-10
5. Laracraft 5.0 3 > 5,000 € 75 € - 99 € 2-10

Best Rated React Agency in the nearshore region

There are currently 8 React Development Companies in the nearshore region that have a total of 126 Top reviews - 5 out of 5 stars. Remember, these are just some of the best. You can find more Top React Development Companies by using the sort and filter functions to see more options.

The top rated React Agency in the nearshore region:

Rank
Company
Rating
Reviews
Minimum Budget
Hour Rate
Size
1. Implex 5.0 12 > 10,000 € 25 € - 49 € 11-50
2. Andersen Germany GmbH 4.9 265 > 10,000 € 25 € - 49 € 1,001-5,000
3. Rolique 4.9 53 > 50,000 € 50 € - 74 € 51-200
4. Lionwood.software 4.9 40 > 10,000 € 25 € - 49 € 51-200
5. Huboxt 4.9 12 > 10,000 € 25 € - 49 € 11-50

React Development Companies with matching case studies

When searching for the ideal React Agency, you should make sure that the respective service provider has already successfully completed and documented similar projects. You can find this proof on our platform in the form of case studies.

A case study is a detailed examination of a real project that uses digital technologies to improve business processes. It contains background information, objectives, implementation details, results and conclusions of the project. The aim is to learn from the experiences and results of the project and gain insights for similar projects.

In order to provide you with the necessary transparency, you will find top React Development Companies with suitable case studies below.

The best React Development Companies, sorted by the number of relevant case studies:

Rank
Company
Case Studies
Rating
Minimum Budget
Size
1. Vention 13 4.9 - 1,001-5,000
2. Rolique 7 4.9 > 50,000 € 51-200
3. Innowise 5 4.9 > 10,000 € 1,001-5,000
4. Andersen Germany GmbH 4 4.9 > 10,000 € 1,001-5,000
5. TheWorkinGroup Sp. z o.o. 2 0.0 > 1,000 € 11-50

Case Study by Vention

heycater!!! Catering-Service neu gedacht
  • heycater!!! Catering-Service neu gedacht
  • heycater!
  • Software Development
  • Material, Next.js, React JS, Ruby on Rails

Description

Vention supported catering platform heycater! with CRM integration, improved data processing and optimizations in the frontend & backend, among other things.

Challenge

As the company grew and customer expectations increased, heycater wanted to scale its platform accordingly, but had great difficulty finding the experts needed to augment the internal team on site.

Solution

Our team made critical improvements to the backend and frontend, including the implementation of a secure architecture, a language localization feature, and new designs for a richer and more consistent user experience. In addition to code refactoring, we also took on improving the data processing systems and revamping the CRM integration.

Results

With the help of our services, product quality was increased, time to market was accelerated, and costs were reduced at the same time. Cross-team collaboration and various project management processes also ran more efficiently from then on. Above all, however, the company was able to expand its competitive advantage thanks to the new technical possibilities.

Case Study by Rolique

An app for preparing for the BCBA and BCaBA certification exams
  • An app for preparing for the BCBA and BCaBA certification exams
  • Central Reach
  • Software Development
  • NestJS, Node.js, React JS, Other

Description

CentralReach is the industry's leading ABA software and services provider that helps organizations serving people with autism and IDD deliver evidence-based and personalized care at scale. The Knowledge Builder App was created for studying and preparing for the BCBA and BCaBA certification in US universities for social workers dealing closely with autistic clients or people diagnosed with ASD. The Rolique team developed an application from scratch.

Challenge

The main goal was to engineer the whole app from scratch. We needed to create a user-friendly interface and effective study modes for students to practice for the BCBA and BCaBA certification exams. Also, we had to visualize the data to help users track progress and achieve better results.

Solution

  • We integrated the app into the LMS of CentralReach Institute using the Sharable Content Object Reference Model (SCORM).
  • We implemented the SAFMEDS learning method by setting up Hygraph.
  • We have done extensive research in MongoDB to optimize the formation of statistics for MOCK exams.
  • We made a QUIZ to collect information about students' learning processes.  
  • We implemented a semi-modular system to adapt QUIZ questions. 
  • We updated the app following ADA Compliance by adding the Focus-states & keyboard navigation and the AccessiBe widget.
  • We used Chart.js for the main setup. We also used plugins (chartjs-plugin-annotation , chartjs-plugin-annotation , chartjs-plugin-zoom, chartjs-adapter-moment) to create the ability for users to manually add/edit/delete results on the chart and view trendlines. 
  • We customized the Chart.js library to visualize the required data.

Results

  • The app is integrated into the LMS of CentralReach Institute.
  • The system automatically selects the most relevant questions according to specific parameters of the chosen certification of the MOCK exam.
  • The generation of MOCK exam statistics is optimized.
  • The SAFMEDS is implemented in the system.
  • The required data is visualized.
  • Users can manually manage the results on the chart and view trendlines. 
  • QUIZ collects statistics that help our client make changes and improvements for better student experience and results. 
  • The statistics reports of MOCK exams for Admins are generated and exported via Excel. 
  • The user`s progress can be tracked in the Progress Chart. 

Case Study by Innowise

 Website optimization and custom LMS development: automating 30% of paperwork
  • Website optimization and custom LMS development: automating 30% of paperwork
  • Software Development
  • .NET Core, .NET Framework, React JS

Description

Innowise Group has upgraded a college's website to the new Umbraco version, which includes a customized course management system and student application forms.

Challenge

The client's college content management system was based on CMS Umbraco 4.11. The main issues were unoptimized code and poor performance, which could be resolved by upgrading to a newer version of Umbraco. In addition, the online course enrollment application system needed to be updated to address issues related to document submission, educational progress tracking, and student data. The platform also lacked tools to track individual progress and the ability to upload education-related multimedia files. Innowise Group was tasked with updating an existing website, including migrating Umbraco to a new version of the CMS, creating new HTML templates, implementing electronic application features, and creating a more flexible management system for progress tracking, student accounting, and content publishing.

Solution

Our team audited the education client's СMS and decided to upgrade it to a newer version in several steps according to the official Umbraco documentation. We updated the system to enable efficient course management and application submission, making the education process more convenient for teachers and students alike.

Results

The college's updated website saw a significant increase in performance, doubling the number of visitors and increasing the number of student registrations for new courses. The introduction of automated paperwork and new documentation tools streamlined and significantly accelerated the work of the college's staff. From now on, students can supplement learning materials with videos, books, pictures and articles, which makes the learning process more structured and enjoyable. The website is optimized for mobile devices, so students can learn, track their progress, book consultations, and submit applications anytime, anywhere.

Case Study by Andersen Germany GmbH

A payment clearing solution
  • A payment clearing solution
  • Clear.Bank
  • Software Development
  • Node.js, React JS, VueJs

Description

The client was a UK clearing bank. Its business objective is to open up new horizons of transparency and compliance in the national financial sector. Acting as a "bank for banks," the client focuses on services such as payment processing for other financial firms.

Our team was given a wide range of tasks that included both front-end and back-end work. For each of the enhancements made, it was necessary to create comprehensive and practical documentation.

Challenge

Andersen's online payment processing software experts were involved in various sub-projects and were divided into different teams. They helped with the following tasks:

External development portal:

  • Complete system redesign; 
  • Optimizing navigation; 
  • Adding a new geographic region; 
  • Updating system dependencies.

Internal development portal:

  • Update dependencies; 
  • Tackle potential security issues; 
  • Develop new functionality for DORA metrics; 
  • Develop and improve performance reporting section; 
  • Update and improve documentation; 
  • Migrate DLQ monitor section.

Solution

Our contribution fully met all the client's expectations. Andersen's specialists updated the existing code, implemented the requested new features, modernized and supported the existing features, and successfully addressed all security issues.

Results

Project Results

Andersen helped the client achieve the following goals:

  1. The total number of vulnerabilities in the client's payment software solution was reduced by 99.5% (those from moderate to critical type were reduced by 100%);
  2. The code was updated and revised - libraries are now 2 years old instead of 5 years old; 
  3. Code creation is now twice as fast; 
  4. General documentation for the project has been fully submitted; 
  5. Migration to a more modern stack has been initiated.

Case Study by TheWorkinGroup Sp. z o.o.

AEC.view
  • AEC.view
  • Zeppelin Power Systems GmbH
  • Software Development
  • Node.js, React JS, React Native

Description

Developing web based application that allows to monitor live data of the performance of the industry grade engines in the factories but also vessels, it contains visualisation of the location for the vessels as well as elements of the predictive maintenance

Challenge

Integration with external IoT system. 

Solution

Complete real time system that allow to monitor technical system of connected (IoT) modules at one glance with predictive maintenance feature. 

Results

Scalable and effective system with analytical module. 

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