Top 100 ReactJS Developers in London

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Top 100 ReactJS Developers in London

May 2022

Looking for a top ReactJS development company in London?

Open source JavaScript library ReactJS is known as a simple and flexible way to build user interfaces. Facebook maintains ReactJS and was the impetus behind its creation. 

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List of the Best London React Development Services

  • 1
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Founded in 2007, Softblues is a software development company headquartered in Lviv, Ukraine. Their team of approximately 22 employees serves small to mid-sized businesses, particularly in the e-commerce and education sectors. They specialize in custom software as well as web and e-commerce development.

    Clients

    • Pinterest
    • FieldBI
    • AutoBI
    • AgroTop

    Industries

    Notable Project

    Softblues designed and developed a construction company’s website. They used React.js and Node.js to build a platform that allowed architects to send projects to the client. 

    "They followed the highest of standards with their work."

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  • 2
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Tech Alchemy was founded in 2016 and has two locations in London. Their team of nearly ten employees provides web development, mobile app development, and UX/UI design services for small businesses.

    Clients

    • Ocean Bottle
    • TOAD
    • MyBricks
    • Moviecoin

    Industries

    Notable Project

    A B2B software company partnered with Tech Alchemy in order to develop a custom web app that will allow them to trigger and multi-sign blockchain transactions. 

    "We appreciated their experience working with startups to help them succeed in the long run."

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  • 3
    • $1,000+
    • 50 - 249 employees
    • London, United Kingdom

    Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.

     

    Clients

    • Nokia
    • Sage
    • Ernst & Young
    • BNP Paribas

    Industries

    Notable Project

    Imaginary Cloud developed an interactive website for a online awareness initiative. The original site was built on React powered by data residing in Google Sheets.

    "The people at Imaginary Cloud were both professional and organized."

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  • 4
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

    Clients

    • Samsung
    • Johnson & Johnson
    • GlobePayroll
    • Siemens

    Industries

    Notable Project

    Andersen designed the UI/UX for a digital therapeutics company's application. They conducted initial research, evaluated existing wireframes, and delivered UX prototypes.

    "They established clear deliverable timelines and stayed on point."

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  • 5
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Mobile app development company Tapptitude has offices in Romania, the US, and London. The team of 40+ employees specializes in iOS and Android app development and offers UX/UI design, IT strategy consulting, and web development. Founded in 2013, Tapptitude mainly works with small businesses and startups in the real estate, automotive, and arts and entertainment industries.

    Clients

    • Tenor
    • Glorify
    • Wellory
    • Ontapp

    Industries

    Notable Project

    Tapptitude is providing mobile app development support for a messaging technology company. They specifically provide iOS and Android SDK support to streamline the client's development capabilities.

    “They’re a team of people we culturally mesh with and feel very comfortable working with.”

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  • 6
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

    Clients

    • Philips
    • Nike
    • Porsche
    • Coca Cola

    Industries

    Notable Project

    Infinum provides mobile app development services for a bank. Their team built an Android and iOS app from scratch. Now, they handle maintenance and updates as well as resolve any issues that may arise.

    “Infinum has a young responsive team that’s well-equipped for what it does.”

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  • 7
    • $25,000+
    • 250 - 999 employees
    • London, United Kingdom

    Objectivity Ltd. is an IT company headquartered in Coventry, United Kingdom, that provides custom software and web development, as well as web design functions. Founded in 1991, the company has over 600 employees. The businesses they serve represent multiple industries including the business services, financial services, and real estate industries.
     

    Clients

    • Morrisons
    • Primark
    • Edrington
    • Knight Frank

    Industries

    Notable Project

    Objectivity Ltd. provides staff augmentation services for a software developer. Teams work in development, business analysis, and testing, and with languages that include Java, Spring Boot, JWT, and Tomcat.

    “They stay at the forefront of technology and can offer a broad variety of resources.”

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  • 8
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Ester Digital is a web design agency based in Tallinn, Estonia. Founded in 2015, the team of 7 specializes in web design, graphic design, and logos. They work mostly with small business clients, and primarily work within the advertising and marketing, information technology, and business services industries.

    Clients

    • McDonald's
    • Bridgestone
    • T-Mobile
    • ASOS

    Industries

    Notable Project

    Ester Digital was in charge of rebuilding the outdated website of a venture capital firm. The new site was expected to be modern, engaging, user-friendly, and consistent with the client's branding.

    "Their team went above and beyond to meet our needs."

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  • 9
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Appetite Creative Solutions is a creative digital marketing agency in London, England – with offices in Madrid and Dubai, too. Established in 2015, Appetite Creative Solutions has a team of 25 employees. They offer logo, web design, games development, and social media marketing services.

    Clients

    • Tetra Pak
    • Jaguar
    • Amazon
    • Patek Philippe

    Industries

    Notable Project

    Appetite Creativity developed a Shopify website from scratch and upgraded an existing site. Their work reached from the frontend to the backend, involving client-facing and user-facing components. 

    "They don’t overcomplicate coding delivery, and they’re fast." 

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  • 10
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    ProductCrafters is a software development company based in Khmelnitsky, Ukraine. Their team of fewer than 10 employees provides custom software, web, and mobile app development services. The company was founded in 2016.

    Clients

    • BeautyAdvisor
    • Raisal
    • ProcessBoard
    • LTC Consulting

    Industries

    Notable Project

    ProductCrafters built and maintained an MVP of a custom fashion aggregator platform for a tech startup. The team handled all technical concerns during their 10-month collaboration with the client.

    "They became a trusted partner and a valued extension of our own team, and we would highly recommend them."

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  • 11
    • $25,000+
    • 10 - 49 employees
    • Sarratt, United Kingdom

    Clock Limited is a digital design and build company. Founded in 1997, the company is headquartered in Kings Langley, United Kingdom. They have a team of around 35 employees who focus on custom software, web, and mobile app development.

    Clients

    • International Tennis Federation
    • Leicester Tigers
    • Northampton Saints
    • Wall Street Journal

    Industries

    Notable Project

    A media company wanted to develop a website to manage their loyalty program and increase engagement. They chose to partner with Clock Limited after getting several recommendations about the vendor's work.

    "Clock's project management style is exceptional."

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  • 12
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Founded in 2018, Together is a creative agency. Their team of around 10 employees is based in London. They focus on web development and design and branding.

    Clients

    • Mosaic
    • SeedLegals
    • Amazon
    • Coast

    Industries

    Notable Project

    Together developed an advertising company’s website. The team redesigned the firm’s visual identity and implemented their designs on the firm’s marketing materials. They also created bespoke animations on site.

    “The team was spot on in terms of capability, trustworthiness, and execution."

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  • 13
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Intellectsoft is a boutique digital transformation consultancy headquartered in Palo Alto, California. The Company provides cutting edge engineering solutions for global and Fortune 500 companies with the mission to help enterprises accelerate adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation.

    Intellectsoft maintains its advanced domain expertise through five dedicated labs:  Cognitive Computing, Decentralized Applications (i.e. Blockchain), Internet-of-Things (IOT), Premier Customer Experience (CX), and Mixed Reality (AR, VR).

    Established in 2007, Intellectsoft operates across multiple offices with the engineering centers in the U.S., the U.K., the Nordic region and Eastern Europe.

    Clients

    • Mitsubishi
    • Fleet Nurse
    • Harley-Davidson
    • Jaguar Land Rover

    Industries

    Notable Project

    Intellectsoft is developing a youth marketing agency’s app. They’ve taken over from the in-house team that started the project. The app generates reports and is available on Android, iOS, and the web.

    "Intellectsoft’s communication is very efficient and clear."

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  • 14
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    TH-EY is a development agency in London, England. Founded in 2017, they have about 8 employees that serve clients in a variety of industries. Services include custom software development, web development, and mobile app development.

    Clients

    • Launchworks
    • Own-Kind
    • pixable
    • First Ascent

    Industries

    Notable Project

    TH-EY was hired to provide custom web development for a job listing platform. The platform was expected to facilitate hiring processes. Technologies used include JavaScript, React, and JWS. 

    "TH-EY has a proven track record and brings the lessons learned from previous projects with them to new work."

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  • 15
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Code&Care is a full-stack software development company based in Austin, Texas, and founded in 2015. With over 50 employees, they offer web development, IT staff augmentation, and mobile app development solutions to small and mid-market agencies alike.

    Clients

    • BITFINEX
    • Roofstreet
    • FrandMe
    • RealConnex

    Industries

    Notable Project

    Code&Care provides technical outsourcing for a fintech company. They've sent over 10 resources for the client's internal development teams.

    "We're impressed with the quality and consistency of the staff they provide."

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  • 16
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Browser London is a digital product agency based in London, United Kingdom. This company has 11 employees and was founded in 2008. Services offered by Browser London include UI/UX design, web design, and custom software development for companies of all sizes.

    Clients

    • Mayor of London
    • Lightning API
    • Shell
    • NHS

    Industries

    Notable Project

    Browser London created a simple software platform for a supply chain transparency firm. The client worked with a UI/UX specialist and a senior web developer to build the prototype. 

    "They were highly involved and engaging. We also came up with some good ideas for how to present information together."

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  • 17
    • $25,000+
    • 10 - 49 employees
    • london, United Kingdom

    Thought&Function is a digital agency founded in London in 2017 with no more than 10 members. They are experts in web development, mobile app development, and UX/UI design solutions for clients in the industries of financial services, education, and health care.

    Clients

    • DoctorLink
    • AllPlants
    • ProperCorn
    • Kano

    Industries

    Notable Project

    Thought&Function developed iOS and Android mobile applications using React Native. They spearheaded the project, from wireframes to deployment, including working with the app stores on submission. 

    "They went the extra mile without necessarily billing me for every single piece of advice." 

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  • 18
    • Scheduling

      5.0
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 2 - 9 employees
    • London, United Kingdom

    Hero Team is a digital agency located in London. Founded in 2018, their services include mobile app and web development in addition to UX/UI design. Their team of 3 works with small businesses.

    Clients

    • Hugo
    • Cuckoo Broadband
    • Virtuall
    • Tried And Supplied

    Notable Project

    Hero Team developed a custom website for an independent creative agency. The team built the brochure site as well as an e-commerce platform.

    "They are transparent and approachable."

    Visit Site
  • 19
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      4.3
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Theodo UK, founded in 2015, is a consultancy and digital development agency headquartered in London with an additional location in Paris. With a team of over 30 employees, they mainly provide mobile app development, web development, and custom software development services.
     

    Clients

    • Admiral
    • Veygo an Admiral company
    • BNP Paribus
    • MADE.com

    Industries

    Notable Project

    Theodo developed an e-commerce website for a cab comparison company. The team fixed and enhanced the UI flow of the site, working in Node and React for development. 

    "They are good developers and architects who pay close attention to detail."

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  • 20
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    AVAMAE is a software solutions agency run by a team of fewer than 50 professionals founded in 2011. Based in London, the company offers custom software, web, and mobile app development services for small and medium-sized businesses from various industries, such as business services, financial services, and health care.

    Clients

    • Strengthscope
    • Manoto
    • Asda
    • Buyfair

    Industries

    Notable Project

    AVAMAE Software Solutions Ltd designed and developed a web-based platform for a strength assessment business. The team managed the entire process from coding to deployment to hosting. 

    "They’re a core part of what we do now."

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  • 21
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Freshcode is a software development company from Zaporizhzhya, Ukraine. Since it was founded in 2014, the team has since grown to about 47 employees. Freshcode offers custom software, web, and mobile app development mostly for small and mid-size companies. 

    Clients

    • tchop
    • Huddle
    • KPMG

    Industries

    Notable Project

    Freshcode developed a web application for a Certificate of Rent Paid (CRP)-issuing company. The platform would automatically generate CRP forms for landlords, saving time and effort.

    "I was impressed at how they can adapt and refine a product into a best-case scenario when situations change."

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  • 22
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    STAKK is a London-based mobile app company founded in 2020. With fewer than 50 employees, they specialize in mobile app development, web development, and UX/UI design for clients that work in various industries, such as IT, business services, and the government.

    Clients

    • The British Museum
    • Nivoda
    • London North Eastern Railway
    • Volopa

    Industries

    Notable Project

    Stakk provides web development and maintenance services for a fitness company. They rebuilt the website, revamping MemberPress and matching the UX to the client’s app. Currently, they provide site maintenance.

    "I appreciate the amount and depth of communication we get from Stakk."

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  • 23
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 2 - 9 employees
    • London, United Kingdom

    Digiruu is a digital firm founded in 2016 run by a team of fewer than 10 professionals. Based in London, the company lends their expertise in mobile app development, UX/UI design, and web design to clients ranging from startups to large enterprises, working in various industries such as consumer products, advertising, and media.

    Clients

    • Pretty Lavish
    • ByErim
    • The Climate Week NYC
    • Subconsciously

    Industries

    Notable Project

    Digiruu is building a mobile app prototype for a digital workout startup. The vendor will also be maintaining the platform with continual testing and updates. 

    "They provide honest and trustworthy advice and feedback for the client's propositions."

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  • 24
    • Scheduling

      4.4
    • Quality

      4.5
    • Cost

      4.4
    • NPS

      4.6
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Incepteo is an innovation-led ‘IDEA TO MARKET’ technology services firm providing 360-degree offerings starting from software development, hosting, support, and digital marketing. Our mantra is to deliver growth outcomes with entrepreneurial vision, effective user experience, and innovation. We bring start-up know-how, corporate maturity, and strategic techno- entrepreneurial experience on the table from inception to growth phases.

    Clients

    • Geodis
    • Betterlogic
    • Capium
    • Vision Engineering

    Industries

    Notable Project

    Incepteo designed the UX/UI for an online wellness platform using Adobe. They led an extensive discovery workshop to discuss the client’s vision and branding — the client also provided Incepteo with wireframes.

    “I was impressed with Incepteo’s designer, who went above and beyond to deliver what we needed.”

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  • 25
    • Scheduling

      5.0
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Lemonat is a digital product design agency that was founded in 2012. Their 9-person team is headquartered in London with offices in Istanbul. They offer UX/UI design, web design, and digital strategy services to midmarket companies in the spaces of financial services, arts and entertainment, and e-commerce.

    Clients

    • Turkcell (Gsm operator)
    • Fizy (Music service)
    • Vendigo (Fintech)
    • Creativehub (Professional service)

    Industries

    Notable Project

    To support the launching of their company, a gaming studio hired Lemonat to develop and design their website. The team built the site from scratch and made sure it was consistent with the client's branding.

    "They have very good communication skills."

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  • 26
    • $1,000+
    • 50 - 249 employees
    • London, United Kingdom

    Software Alliance is a blockchain company. Their small team is in Lahore, Pakistan; Lahore, Pakistan and Lahore, United Kingdom. Their services include blockchain, e-commerce development, mobile & app marketing, and mobile app development. The agency was launched in 2009.

    Industries

    Notable Project

    Software Alliance helped develop custom software, mobile application, and chrome extension for a software startup. The team worked on the designs and mockups based on the client's specifications and workflows.

    "They were an all-in-one software development company."

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  • 27
    • Scheduling

      5.0
    • Quality

      4.5
    • Cost

      4.6
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Fourmeta is an e-commerce development company. They specialize in e-commerce development, ux/ui design, and web development and were launched in [node:field_pp_year_founded:value]. Their midsize team is in London, United Kingdom.

    Industries

    Notable Project

    Fourmeta created an e-commerce website for a software company. The team built the platform in Shopify.

    "We constantly received weekly results for the week of the project."

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  • 28
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 employees
    • London, United Kingdom

    Myplanet is a software studio headquartered in Toronto, Ontario, with additional offices in Vancouver, British Columbia, and Chicago, Ill. Founded in 2009, Myplanet's team of around 90 specializes in web development, web design, and e-commerce development, primarily for midmarket and enterprise clients in financial services and media.  

    Clients

    • Acquia
    • CenturyLink
    • Cisco
    • Cleveland Clinic

    Industries

    Notable Project

    A cloud platform developer hired Myplanet for assistance with digital strategy, information architecture, and user experience. The client's goal was to rebrand and reposition its digital presence as it moved away from providing hardware to providing cloud services. The client appreciated Myplanet's "customer-centric" approach to project management.

    "From day one to January 2015, we experienced a 300% increase in site traffic and 200% increase in leads coming from the web. Our bounce rate went down and our net promoter score went up." - Chief Marketing Officer & SVP of Business Operations, Cloud Platform Developer 

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  • 29
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    We Are Kitty is a small London, United Kingdom-based user experience design company. Founded in 2017, the team provides ux/ui design, e-commerce development, web design, web development, and more.

    Industries

    Notable Project

    An online casino wanted to rebrand their business to align more as an entertainment brand. They hired We Are Kitty to create content, drive traffic to a new website, and engage with a new audience.

    "They are a young and dynamic that's friendly and committed."

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  • 30
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

    Clients

    • Bank of Kigali
    • Kuoni
    • SAP
    • PayPoint

    Industries

    Notable Project

    A corporate finance company needed a software development partner to help support their clients. They chose to partner with Core Blue because of how they approach a project like this.

    "They are always friendly and try their best to deliver the best product they can."

    Visit Site

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Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

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