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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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Freeman Clarke
Artificial Intelligence - AI · Web Development · Web Design
Freeman Clarke is the UK's largest and most experienced team of fractional CIOs, CTOs and IT Directors. Ambitious businesses need an outstanding technology leader.
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Ecrebo
Web Development · Web Design · IT Services
Ecrebo is a technology company that enables the real-time, cost-effective delivery of personalized offers and messages at point of sale on paper and digital receipts.
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eXtreme Code Factory
Web Development · Web Design · IT Services
We believe that software development is too slow. We believe that too many systems are delivered over-budget, late and most importantly with serious technical issues.
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Truphone
Mobile App Development · Web Development · Web Design
Truphone believes that connectivity can be easier, smarter and more efficient.
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UKCloud Ltd
Web Development · Web Design · IT Services
UKCloud, the multi-cloud experts. We are dedicated to exclusively helping the UK Public Sector, delivering more choice and flexibility through safe and trusted cloud technology.
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Foehn
Web Development · Web Design · IT Services
Foehn is a multi-award winning provider of cloud communications technology, delivering IP telephony and contact centres to the private and public sectors since 2000.
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Northamber Plc
Web Development · Web Design · IT Services
Northamber is the longest established trade-only distributor of IT equipment in the UK. Since 1980, Northamber has been your partner in IT distribution.
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Active8 Managed Technologies
Web Development · Web Design · IT Services
“We’re a responsive, client-focused Managed Service Provider helping clients achieve success through their print, IT, and telephony.” Active8 Managed Technologies is focused on…
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UCi2i
Web Development · Web Design · IT Services
Why UCi2i? Secure, HD quality, easy-to-use and to manage, on any device or network, and support The smarter, affordable way to communicate face-to-face, wherever you are.
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OrderWork Ltd
Web Development · Web Design · IT Services
OrderWork makes services simple with its enablement platform at the heart of its business which reduces the costs and complexity of bringing new services to market for its partner…
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Inadash
Web Development · Web Design · IT Services
Inadash is the fastest growing property app in London and is here to streamline and accelerate the process of renting a property and rooms in London.
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Managed IT Services LTD
Web Development · Web Design · IT Services
Managed IT Services (MITS) are award-winning Cybersecurity and professional IT services experts.
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Preventon (Security Software Limited)
Web Development · Web Design · IT Services
Preventon is a leading supplier of whitelabel software for the ISV’s.
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Karlson
Web Development · Web Design · IT Services
In a world where paperless workplaces remain impractical, we help businesses achieve bespoke paper-lite realities.
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Qubic Group plc
Web Development · Web Design · IT Services
Qubic Group plc is an expert technology company that provides enterprise-grade hosted voice and data services in addition to traditional localized services.
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Millgate
Web Development · Web Design · IT Services
Millgate delivers tech products, services, and solutions that actually work, based on 20+ years of experience and training.
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Gamma
Web Development · Web Design · IT Services
Gamma is a leading supplier of voice, data and mobile products and services in the UK.
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ECS Digital
Web Development · Web Design · IT Services
ECS is a UK digital transformation consultancy business. Founded in 2008 with over 750 employees globally, ECS has been helping clients in all industries, to transform their…
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Upside Energy
Web Development · Web Design · IT Services
Award-winning cloud platform, using advanced algorithms and artificial intelligence to manage and monetize very large portfolios of diversified and distributed energy assets.
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Countly
Web Development · Web Design · IT Services
Countly is a web and mobile app analytics platform. It collects data from mobile applications, processes this data in real-time and gives you advanced tools to understand your…
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Socitm
Web Development · Web Design · IT Services
Socitm is the professional network for digital leaders in the transformation of local public services.
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Piccadilly Group
Web Development · Web Design · IT Services
Piccadilly Group is a technology and delivery acceleration specialist dedicated to providing specialist domain skills, expert knowledge, and delivery capability to the entire…
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Six Degrees Group
Web Development · Web Design · IT Services
Six Degrees is a cloud-led managed service provider. It works as a collaborative technology partner to businesses making a digital transition.
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TechSimulater
Mobile App Development · Web Development · Web Design
TechSimulater is a Tech Firm dedicated to a variety of technological development. With an emphasis on app development, computer development, and networking.
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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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Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for .NET in the UK

Freeman Clarke

Ecrebo

eXtreme Code Factory

Truphone

UKCloud Ltd

Foehn

Northamber Plc

Active8 Managed Technologies

UCi2i

OrderWork Ltd

Inadash

Managed IT Services LTD

Preventon (Security Software Limited)

Karlson

Qubic Group plc

Millgate

Gamma

ECS Digital

Upside Energy

Countly

Socitm

Piccadilly Group

Six Degrees Group

TechSimulater