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Top IT Service Providers for .NET in the UK

457 IT service providers ranked by rating, review volume and listing quality.

Between them, the 457 IT service providers on this page cover web development (450), PHP (384), web design (365) and IT services (331). They also list work in United States of America. 457 of them have written a profile you can read before you get in touch.

We list more than 450 IT service providers in the UK listed for .NET development. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Your Dev Team, Abbacus Technologies and Digijuice.

Before you shortlist, check

Work on current .NET versions, not only legacy .NET Framework
A plan for moving any old .NET Framework code forward
Automated tests and deployment you can run yourself
That you own the code and the build pipeline

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Quantanite
Web Development · Web Design · IT Services
Quantanite is a global professional services company focusing on business process automation and offshoring.
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Sage
Web Development · Web Design · IT Services
Be Sage. Build on. At Sage, we transform the way people think and work, enabling their organizations to thrive.
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NashTech Limited
Web Development · Web Design · IT Services
NashTech has been delivering Consulting, Software Solutions and BPO from its development centers in Vietnam since 2000.
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@DevHub
Web Development · Web Design · IT Services
Build your team in eight weeks and scale at your own pace. @DevHub was launched to reinvent the traditional IT outsourcing world because; quite frankly, we feel it’s outdated, not…
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AppyWay
Web Development · Web Design · IT Services
Ours is a journey that’s certainly been around the houses. We started out as AppyParking. An app made to solve the frustration of finding a parking space.
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Allied Worldwide
Web Development · Web Design · IT Services
We are a global provider of IT Resources, IT Managed Services and flexible, ad-hoc IT Resource and Project Support to organizations in over 40 countries.
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Smart DCC
Web Development · Web Design · IT Services
At the DCC, we believe in making Britain more connected, so we can all lead smarter greener lives. We’re creating this future by digitizing Britain’s energy infrastructure.
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Kalibrate
Custom Software Development · Web Development · Web Design
Kalibrate’s decision-making software empowers fuel and convenience retailers across the globe with the market intelligence, micro-local data, and precision pricing and planning…
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Tech Nation
Web Development · Web Design · IT Services
We believe the UK is the best place in the world to start and grow a digital business Tech Nation empowers ambitious tech entrepreneurs to scale faster through growth programmes,…
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IMImobile
Web Development · Web Design · IT Services
IMImobile is a UK based, global cloud communications software and solutions provider that enables companies to use mobile and digital technologies to improve and automate customer…
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GCI
Web Development · Web Design · IT Services
Multi-award-winning GCI is one of the UK’s leading ICT Service Providers, with offices across the UK.
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Serco
Web Development · Web Design · IT Services
Serco is one of the world’s largest providers of public services to Governments, employing over 50,000 people in over 20 countries.
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Quality Sales Leads Limited
Web Development · Web Design · IT Services
Quality Sales Leads Limited (QSL) is a boutique Inside Sales Consultancy that specializes in outbound B2B Lead generation, B2B Sales appointment making & outsourced telesales…
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Gibbs Hybrid
Web Development · Web Design · IT Services
Gibbs Hybrid is an international IT and Business Services firm providing a "one-stop-shop" helping customers with Project Consulting, Talent and Outsourced solutions, whilst…
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ActiveOps
Web Development · Web Design · IT Services
ActiveOps is a leading provider of digital operations management solutions to financial services, BPOs, shared services, governments, healthcare and other service industries.
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Echo-U Ltd
Web Development · Web Design · IT Services
We're an established contact center creating growth for many of the UK's biggest brands by managing their customer relationships.
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Jensen Kobain Solutions
Web Development · Web Design · IT Services
Formed in 2013 originally as a Healthcare consultancy business, our services have grown to incorporate outsourcing services for the UK and USA in diversified fields such as…
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Z-CARD
Web Development · Web Design · IT Services
Z-CARD is the global specialist in PocketMedia. We believe that successful marketing is all about simple ideas, brilliantly executed, that reinforce your brand message.
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IRIS Software Group
Web Development · Web Design · IT Services
We know your business success lies in getting critical operational tasks right first time, every time, as simply as possible.
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ESG Global
Web Development · Web Design · IT Services
ESG is an outsourcing company engaged in all IT processes, business processes, KPO & RPO.
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Hortor Limited
Web Development · Web Design · IT Services
Hortor is an established global strategic resourcing consultancy, founded by two entrepreneurs with extensive corporate experience.
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Bromcom
Custom Software Development · Web Development · Web Design
Bromcom has 25+ years’ experience providing innovative, leading edge award winning IT solutions to schools, colleges & local authorities that demanded more from their IT.
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Vaxtor Recognition Technologies
Custom Software Development · Web Development · Web Design
Software for license plate recognition in the most demanding scenarios. We develop high-performance products and solutions for license plate recognition in any scenario.
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Wavex Technology Ltd
Web Development · Web Design · IT Services
Wavex Technology is an award-winning, independent IT Services firm, founded in 1998 we offer our clients a secure and fully managed IT service.
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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the UK are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: USA (714) · India (465) · Germany (222) · Canada (143).

Other specialisms in the UK: UI/UX design (941) · e-commerce (854) · Android app development (812) · iOS app development (800) · WordPress (752).

Every IT service provider in the UK: the full list.

Every category in the UK: the UK country page.

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Every other way we rank it service providers — by what they do and where they are.

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More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for .NET in the UK

Quantanite

Sage

NashTech Limited

@DevHub

AppyWay

Allied Worldwide

Smart DCC

Kalibrate

Tech Nation

IMImobile

GCI

Serco

Quality Sales Leads Limited

Gibbs Hybrid

ActiveOps

Echo-U Ltd

Jensen Kobain Solutions

Z-CARD

IRIS Software Group

ESG Global

Hortor Limited

Bromcom

Vaxtor Recognition Technologies

Wavex Technology Ltd