Looking for a top staff augmentation service in the United Kingdom?

Maintaining all of your business processes and services requires an incredible amount of patience and diligence, and sometimes you need external expertise to do so.

To assist you in your search for a partner, we’ve compiled this list of the top IT staff augmentation companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

List of the Best United Kingdom Staff Augmentation Firms

  • 1

    Unosquare, LLC

    Founded in 2009, Unosquare, LLC is headquartered in Lake Oswego, Ore. with other locations in Guadalajara, Mexico, and Belfast, U.K. With more than 600 employees, they provide software testing and development services, combined with their staff augmentation services to meet software engineering needs, using nearshore development professionals.

    Notable Project

    A caller ID company hired Unosquare, LLC to provide software engineering and QA resources. Assisting on various projects, Unosquare provided daily support in all aspects of application development.

    "I have been most impressed with the caliber of the technical resources provided by Unosquare." – Senior Director Software Engineering, Caller ID Company

    Former clients
    Vesta
    Harvard Business Publishing
    Foundation Medicine
    Edwards Lifesciences
    Axis Bank
    $ $ $ $ $
    equalizer $25,000+
    group250 - 999 Employees
    place Lake Oswego, OR
    4.9
    4.9
    12 Clutch reviews
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  • 2

    CSHARK

    CSHARK is a custom software development, mobile app development and product design company based in Wroclaw, Poland. Founded in 2014, they have about 270+ team members that deliver projects for large brands and startups in many segments, including global banks, IT services, electronic hardware and software providers, oil and energy, biotechnology, logistics, and others. They create software solutions and specialize in C#, .NET, .NET Core, Go, Java, PHP, frontend technologies, and mobile technologies.

    Notable Project

    CSHARK is developing custom software for a research company from Switzerland. Working in C# and .NET, the team is implementing a wide range of solutions such as graphical interface, SQL database, algorithmic generation, or modeling engine.

    "The code quality increased drastically by reaching an 80% code coverage in just a few months of work, while the amount of feature implemented more than doubled since the arrival of the CSHARK development team.” - Software Architect, Research Company.

    Former clients
    Focis
    Meta Bytes
    Mindset Innovation (Eno)
    Petromex
    Pixel Guru
    OmegaLambdaTec GmbH
    regenHU
    HTP J-1 Visa Programs
    Fenergo
    VecCtor
    $ $ $ $ $
    equalizer $25,000+
    group250 - 999 Employees
    place Wrocław, Poland
    5.0
    5.0
    11 Clutch reviews
    Awards

    FT 1000: Europe’s Fastest Growing Companies (2020)(2021) , Forbes Diamonds (2021) , Business Gazelle (2019) (2020)

  • 3

    BJSS

    Headquartered in Leeds, United Kingdom, BJSS is an IT consultancy with offices in London, New York, and Bristol and Manchester, U.K. Since 1993, their team of 750+ has specialized in custom software development, application testing, IT strategy consulting, and more for enterprise-level and midmarket clients. 

    Notable Project

    After BJSS worked on automating a grocery store's software system, they later redesigned their e-commerce platform and built product scan tools. The agency delivered everything on time. The client prides BJSS on tackling such a hard project with intense passion.

    "They're very straightforward, and they're very matter of fact. They tell you as it is, without dressing it up and without making drama of it." – Head of IT Delivery, Retail Grocer

    Former clients
    Euroclear
    Barclays
    Xerox
    BBC
    $ $ $ $ $
    equalizer $50,000+
    group1,000 - 9,999 Employees
    place Leeds, United Kingdom
    4.5
    4.5
    5 Clutch reviews
    Awards

    The Queen's Award for Enterprise (2018) , The European Software Testing Awards (2015, 2016) , Best in Business Awards (2014)

  • 4

    GoodCore Software

    Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. With a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed-cost and dedicated development teams.

    Notable Project

    GoodCore Software transferred a paper-based database for NHS patients to a searchable online system. The client required an online database of rehabilitation services and providers with a structured user permissions hierarchy. GoodCore took a specification/brief and translated it into a detailed system specification. The solution was developed along agreed milestones and deployed onto servers.

    “The system is currently live and saving significant amounts of time and improving services for patients. GoodCore Software demonstrated a clear understanding of our needs from the outset. Excellent user interface design has made the system very appealing to our users." – Managing Director, advisory firm for patients of NHS hospitals

    Former clients
    Printed Music Licensing
    Weight Loss Resources
    GC Business Finance
    XTracked Deliveries
    One Golf Network
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Croydon, United Kingdom
    5.0
    5.0
    18 Clutch reviews
  • 5

    Kaynes

    Kaynes is an IT company based in Lochore, Scotland with more than 10 employees. Founded in 2014, they specialize in IT staff augmentation solutions for clients ranging from small firms to large businesses in the fields of financial services, IT services, and more.

    Notable Project

    Kaynes provided IT staff augmentation services for a developer. The developer needed additional development assistance for one of their projects. Kaynes was able to comfortably work with the developer and successfully finish the project.

    “They’re exceptionally helpful.” - Head of IT, Developer

    Former clients
    Anki
    NW Tech Event IT
    $ $ $ $ $
    equalizer $250,000+
    group10 - 49 Employees
    place Lochore, United Kingdom
    5.0
    5.0
    3 Clutch reviews
  • 6

    Evolve IT Consulting

    Founded in 2007, Evolve IT Consulting is an IT consulting firm. Their team is based in Ratby, United Kingdom, with an additional office in Kyiv, Ukraine. They focus on custom software development, IT staff augmentation, and mobile app development.

    Notable Project

    Evolve IT Consulting provides staff augmentation and recruiting services for a virtual event company. The team handles everything from the interview process through onboarding, as well as admin services.

    "We’re happy with what we have with Evolve IT Consulting, in terms of timely delivery and quality of code." – Founder & CEO, Virtual Event Company

    Former clients
    Zeux
    Bridgestone
    Symphony
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Ratby, United Kingdom
    5.0
    5.0
    1 Clutch review
  • 7

    Softwire

    Softwire is a software development company founded in 2000. Softwire's team of 122 works across two UK offices in London and Bristol. They provide web development, custom software development, mobile app development, and IT strategy consulting, mostly for non-profits, media, and education companies. 

    Notable Project

    A fitness club hired Softwire for several projects after a successful website redesign. Softwire redesigned the client's booking system based on PHP and MySQL. Softwire then created a corresponding mobile app for booking. They also provide general maintenance and support, advise the client on branding and lead generation, and develop any custom software.

    " Their mobile app, connected to the booking system, reduced the number of customers booking through our receptionists from 75% to 5% and allowed customers to easily schedule courses. Their stabilization to our main site helps bring in new members all the time. They cut down a significant amount of labor cost and continue to improve the membership experience." -IT Director, Fitness Club

    Former clients
    BBC
    Allianz
    Royal Pharmaceutical Society
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place London, United Kingdom
    4.7
    4.7
    7 Clutch reviews
    Awards

    2013 Inspiration of the Year Award

  • 8

    Global Talent

    Global Talent is an IT firm based in London with more than 50 experts. Since their founding in 2017, they have provided IT staff augmentation, custom software development, and IT strategy consulting solutions for clients ranging from small firms to large companies.

    Notable Project

    Global Talent provided staff augmentation services for a sustainability company. The company was in need of a low-maintenance team that didn’t need significant management. The company is satisfied with Global Talent’s contributions thus far.

    “They’re very collaborative, and we maintain excellent communication with them.” - Technical Director, Sustainability Company

    Former clients
    Playtech
    Holovis
    SmartXpo
    $ $ $ $ $
    equalizer $50,000+
    group50 - 249 Employees
    place London, United Kingdom
    4.8
    4.8
    6 Clutch reviews
  • 9

    Distributed

    Distributed is a London-based tech company with over 250 members founded in 2017. They specialize in custom software development, IT staff augmentation, and mobile app development for mid-market and enterprise-level businesses alike.

    Notable Project

    Distributed developed mobile apps for an investment platform. The apps were built for both Android and iOS, and let account holders view their transactions through their phones. The project went smoothly with constant feedback between both companies.

    “They have a good ability to listen.” - CEO, Investment Firm

    Former clients
    Providence Group
    MKL Innovation
    ABM Communications
    $ $ $ $ $
    equalizer $10,000+
    group250 - 999 Employees
    place London, United Kingdom
    4.9
    4.9
    5 Clutch reviews
  • 10

    My Team Abroad

    Founded in 2020, My Team Abroad is an IT staff augmentation firm based in London. They work with small and midmarket businesses primarily. 

    Notable Project

    My Team Abroad worked with a software development company to provide developers. They recruited two resources. They were communicative and easy to work with. 

    "It’s hard not to be happy with My Team Abroad." – CEO, Development Company

    Former clients
    RedGrid
    Orion Protocol
    WebSummit
    $ $ $ $ $
    equalizer $1,000+
    group10,000+ Employees
    place London, United Kingdom
    5.0
    5.0
    2 Clutch reviews
  • 11

    Intellectsoft

    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.

    Notable Project

    Intellectsoft created an e-commerce app with matching backend infrastructure, then integrated it into the client’s blockchain technology. Transforming the given creative demands into a satisfactory product under a strenuous deadline was deemed impressive, as were their communication skills and determination.

    “We've given them a challenge, and they've met it, which is why Intellectsoft has become our leading service provider for technology development.” – Program Manager, Holding Company

    Former clients
    Eurostar
    Harley Davidson
    Jaguar
    Universal Pictures
    $ $ $ $ $
    equalizer $50,000+
    group50 - 249 Employees
    place Miami, FL
    4.9
    4.9
    31 Clutch reviews
    Awards

    Inc. 5000: #846 in 2018 , Business of Apps: The Techies 2018: Best Use of Emerging Tech , IAOP: Top 100 Outsourcing Companies

  • 12

    DataArt

    DataArt is a software engineering firm in München, Germany; Zug, Switzerland; London, England; and New York. Founded in 1997, they have about 3,000 employees that serve mainly midmarket and small-business clients in the financial, healthcare, and IT sectors. Services include custom software development, enterprise app modernization, and UI/UX design.

    Notable Project

    DataArt provided QA services for a financial institution. In order to help facilitate a smooth transformation, their team tested credit card payments, billing, and other automated functionalities. Their work has received positive feedback and helped detect bugs and issues.

    “The substantial parts are that they’re really transparent and responsive.” – VP & CTO, Financial Institution

    Former clients
    Apple Leisure Group
    Cancer Research UK
    Nasdaq
    Credorax
    Ocado
    $ $ $ $ $
    equalizer $50,000+
    group1,000 - 9,999 Employees
    place New York, NY
    5.0
    5.0
    12 Clutch reviews
  • 13

    UDEV HUB

    UDEV HUB is a software development company founded in 2018 in Kyiv, Ukraine with over 250 members. They specialize in cybersecurity, IT staff augmentation, and custom software development solutions for clients in the fields of financial services, e-commerce, and education.

    Notable Project

    UDEV HUB developed a web app for an AI-based security company. UDEV HUB was in charge of developing the web app’s front-end systems. The company was able to conduct multiple demos thank’s to UDEV HUB’s assistance.

    “The workflow was very effective.” - Head of Product, AI-Based Security Company

    Former clients
    GBS SOLUTIONS
    PZU
    v
    $ $ $ $ $
    equalizer $25,000+
    group250 - 999 Employees
    place Kyiv, Ukraine
    4.9
    4.9
    5 Clutch reviews
  • 14

    Railay

    Railay is a software development talent partner with headquarters in Ho Chi Minh City, Vietnam, and an office in London. Founded in 2010, their team of about 15 employees offers staff augmentation services in a quick, flexible, and scalable manner to mostly small-scale clients in e-commerce and education sectors. Additional services include custom software and e-commerce development.

    Notable Project

    Railay built a CMS for a digital marketing company with the objective of creating a place to promote new products, create social campaigns, and offer sign-up features for promotions. The project team use Java for development and also provided the UI/UX design. Ultimately, they delivered a bug-free platform on time and with seamless interaction. 

    "Everything has been working error-free." – Director, Digital Marketing Company

    Former clients
    Softbank
    Toyota
    Regal Logistics
    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Saigon, Vietnam
    5.0
    5.0
    5 Clutch reviews
  • 15

    Kew Consulting

    Kew Consulting is a consultancy founded in 2017 in Pembroke Dock, Wales, with no more than 10 members. They are experts in IT staff augmentation, custom software development, and web development services for clients in the industries of real estate and education.

    Notable Project

    Kew Consulting developed a platform for a fintech and data science recruiting company. Kew Consulting was in charge of developing leaderboard functionality using .NET and JavaScript. More than 90% of the company’s members are using the CRM solution.

    “We gave them a brief, they built it, and there were very few changes we needed to do.” - Manager, FinTech and Data Science Recruiting Company

    Former clients
    Saragossa
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Pembroke Dock, United Kingdom
    5.0
    5.0
    1 Clutch review
  • 16

    Teceze Ltd

    Teceze Ltd is a London-based IT company founded in 2012 with more than 10 employees. They are experts in IT strategy consulting, cybersecurity, and IT managed services for clients that work in the industries of business services, consumer products, and more.

    Notable Project

    Teceze Ltd provides IT managed services for a research advisory firm. The firm was in need of a new IT support company to handle their IT needs. The firm has partnered with Teceze Ltd ever since.

    “They’re available 24/7 and responsive, usually within 10 minutes. They have a ticketing system installed on each machine for issue reporting.” - VP of IT Operations, Research Advisory Firm

    Former clients
    Outsell, Inc.
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place London, United Kingdom
    4.5
    4.5
    1 Clutch review
  • 17

    ROKi Digital

    ROKi is an IT firm based in London with more than 10 experts. They have provided e-commerce development, IT managed services, and IT strategy consulting solutions since their founding in 2015. They mainly work with small and medium-sized businesses in retail, e-commerce, and more.

    Notable Project

    ROKi developed a custom software solution for a P2P currency exchange platform. The platform had a roadmap with ambitious goals and milestones and needed an agency that could work with their pace. ROKi has helped launch various features for the platform since.

    “They truly felt like they were part of our team, which made working with them fun and rewarding.” - Head of Product, P2P Currency Exchange Platform

    Former clients
    The Guardian
    AllFlex
    TVSquared
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place London, United Kingdom
    5.0
    5.0
    3 Clutch reviews
  • 18

    DOIT Software

    Founded in 2014, DOIT Software is an IT company based in Boston, Mass., with other offices in California and Ukraine. Its team of 25 specializes in mobile and e-commerce development, as well as UX/UI design.The client appreciated DOIT Software's ability to work overtime to meet deadlines, as well as their quick response times despite a significant time zone difference.

    Notable Project

    DOIT Software was hired by a consultancy to built an iOS app to accompany an existing Android app. DOIT Software also assisted with a digital business card product the consultancy created.

    "Before major releases, a part-time QA person spends a few days testing it before we push it to the App Store which results in a smooth launch and everything working great." - Business Consultant, Consultancy

    Former clients
    Sellvana
    Ideo Solutions
    Inigo
    Vonnlighting
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Boston, MA
    4.9
    4.9
    17 Clutch reviews
  • 19

    CrewNew.com

    CrewNew.com is a web, software, design, and marketing agency based in London with offices in Tartu, Estonia and Kragujevac, Serbia. The agency, founded in 2006, has a team of more than ten that provides, among others, IT staff augementation, custom software development, and web development services to various companies and institutions.

    Notable Project

    A Software Development Firm hired CrewNew.com to build a white label team messaging software that could be used by the Firm's employees and customers. This software was intended to work like Slack but with lower running costs. CrewNew.com delivered the team-messaging software that works on Android, iOS, Windows, OSx, and Linux and worked very fast. As a result, the Firm was saving a lot of money because they're no longer using Slack.

    "CrewNew team is always using the best project management apps & tools." - CEO, Software Development Firm 

    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place London, United Kingdom
    5.0
    5.0
    2 Clutch reviews
    Awards

    BBC , Republic of Estonia Government , Jungent , bemore

  • 20

    Deployflow

    Deployflow is a boutique DevOps agency composed of a team of fewer than 10 professionals founded in 2010. Based in Reading, the United Kingdom, they provide cloud consulting & SI, cybersecurity, and IT managed services solutions for small and medium-sized businesses in various fields, such as financial services, IT, and real estate.

    Notable Project

    Deployflow worked with an IT consultancy office to help fill the skill gap in their consulting portfolio for clients in Dubai. Deployflow helped by providing custom solutions to the consultancy's clients. Deployflow has never missed a deadline over the years and has continued to provide reliable service to the consultancy.

    "If we come to them with a task in their area of expertise, they deliver. They’ve never been late and our clients are always happy. Thomas is our secret weapon. Whenever we bring him to a meeting, people don’t want him to leave. This is the general nature of our business relationship." - Founder, IT Consultancy Office

    Former clients
    TCN
    Vodafone
    Zilch Technology
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Reading, United Kingdom
    5.0
    5.0
    3 Clutch reviews
  • 21

    Urolime Technologies

    Urolime Technologies is a DevOps consulting company founded in Cochin, India in 2011. With over 50 professionals, they provide cloud consulting, IT managed services and IT staff augmentation solutions to clients across various industries.

    Notable Project

    Urolime Technologies provided managed IT services for a software development firm. The firm needed consistent support for their SaaS infrastructure with minimal downtime. With 99.99% uptime, the firm is satisfied with Urolime Technologies’ services.

    “It’s more than just a business relationship between us, which I really appreciate.” - CEO, Software Development Firm

    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Kochi, India
    4.5
    4.5
    1 Clutch review
  • 22

    JANETO

    JANETO is a software company headquartered in Ho Chi Minh, Vietnam with an office in Providence, R.I. Founded in 2014, the team of 21 specializes in web development, mobile app development, and graphic design. They work with midmarket and small businesses, focusing on business services, retail, and e-commerce.  

    Notable Project

    JANETO worked with an emoticon social media platform to develop an application for Android. They created an app that features backgrounds and emoticons that can be used in text messages and developed a calendar to release new emoticons for users. The client was impressed with their ability to make the client’s ideas a reality. 

    “They brought our idea to reality. They were quite cost-effective compared to what others quoted. They were easy to work with. Given the language barrier, they were great communicators.” – Director, Emoticon Social Media Platform

    Former clients
    Wow! Kids
    POLYGON
    eGov
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Ho Chi Minh, Vietnam
    4.5
    4.5
    4 Clutch reviews
  • 23

    ITSTEADY

    ITSTEADY is a custom software development company based in Las Vegas, with offices in London and in Minsk, Belarus. The company, founded in 2016, has more than 30 employees and provides a wide range of services -- including IT staff augmentation, custom software development, and web development -- to small and larger-sized companies and institutions in the advertising & marketing, business services, education and various other industries. 

    Notable Project

    An oil company hired ITSTEADY to develop an internal portal that accommodates the full organizational structure, supports processes throughout the company’s departments, is integrated with multiple legacy systems, and have a custom UI design for each user role. ITSTEADY delivered the portal and is now in use. 

    "Within four months, we introduced a global collaboration hub for all employees." - IT Manager, Oil Company

    Former clients
    BMO
    Newmont
    Omnitron Systems
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Las Vegas, NV
    5.0
    5.0
    1 Clutch review
  • 24

    Relictrio - Offshore Development center in India | Recruitment services | IT Services

    Relictrio - Offshore Development center in India | Recruitment services | IT Services is an IT firm based in Bengaluru, India, and founded in 2015. With more than 10 employees, they offer IT staff augmentation, IT managed services, and business consulting solutions to various clients.

    Notable Project

    Relictrio - Offshore Development center in India | Recruitment services | IT Services developed a website for a digital marketing company. The company needed their webpage optimized to better represent their services. The company is satisfied with the improvements made to the website.

    “Seamless project management, highly effective.” - Marketing Manager, Digital Marketing Company

    Former clients
    Plexcel Info Systems
    Digital Marketing Indiya
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Bengaluru, India
    4.5
    4.5
    1 Clutch review
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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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