Company lists · Data refreshed September 2026

Top 15 IT consulting firms based in Sheffield, United Kingdom

RevenueBase identified 45 IT consulting firms headquartered in Sheffield, United Kingdom as of September 2026 and tracks 558 professional contacts across them, including 338 with verified work emails. London is the largest hub.

This list covers IT consulting firms headquartered in Sheffield, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
45Companies
558Contacts tracked
338Verified emails
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The 15 largest IT consulting firms based in Sheffield, United Kingdom

Ranked by team size
Top 15 of 45 IT consulting firms based in Sheffield, United Kingdom, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
MillgateIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 202651-20090

“At Millgate, our guiding principle is deceptively simple: we deliver tech products, services and solutions that actually work for you.”

Source: company website · checked Sep 4, 2026
2
Simoda LimitedIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 202611-5049
Source: company website · checked Sep 4, 2026
3
BrookconsultIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 202611-5026

“BrookConsult is a business consultancy supporting organisations to improve performance, develop leaders, streamline operations and adopt the right technology.”

Source: company website · checked Sep 4, 2026
4
1101Partial evidence
Sheffield, United KingdomHQ checked Sep 4, 202611-5021

“Most IT providers stick to the same old script with fixed services and that familiar “not in scope” shrug.”

Source: company website · checked Sep 4, 2026
5
Affinity IT Services LTDPartial evidence
Sheffield, United KingdomHQ checked Sep 4, 202611-5012

“Affinity IT Services Ltd is a privately owned business based in Sheffield, South Yorkshire.”

Source: company website · checked Sep 4, 2026
6Sheffield, United KingdomHQ checked Sep 4, 20261-107

“datamills is a friendly IT support and solutions company with a passion for great delivery and customer service.”

Source: company website · checked Sep 4, 2026
7
Dyson IT LTDPartial evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-107

“DYSON IT LTD is a company that provides IT consultancy, development and support.”

Source: company website · checked Sep 4, 2026
8
Kilco LTDPartial evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-104

“We help organisations to make the most of their IT.”

Source: company website · checked Sep 4, 2026
9
Omletec LTDIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-103
Source: company website · checked Sep 4, 2026
10
SparkrenaIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-103

“Sparkrena, headquartered in the UK, is a professional services organization with expertise in digital, cloud.”

Source: company website · checked Sep 4, 2026
11
Systems Assurance LTDIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 202611-502

“Systems Assurance helps businesses modernise, simplify and improve the way they use technology.”

Source: company website · checked Sep 4, 2026
12
Bestow GroupIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-102

“Bestow® - Bestow® - Enterprise and AWS Certified Solutions Architect Professionals Diagnostics, design, and delivery of mission-critical Enterprise systems.”

Source: company website · checked Sep 4, 2026
13
Conash Consulting LimitedPartial evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-101

“Decades of IT experience in a range of industries from manufacturing, property to financial services means we have a unique and full stack view.”

Source: company website · checked Sep 4, 2026
14Sheffield, United KingdomHQ checked Sep 4, 20261-101

“Businesses are constantly driven to undertake their digital transformation.”

Source: company website · checked Sep 4, 2026
15
Illuminaries LTDIndirect evidence
Sheffield, United KingdomHQ checked Sep 4, 20261-101

“Illuminaries comprise experts in web and desktop applications, databases and other business systems.”

Source: company website · checked Sep 4, 2026

Showing 15 of 45 IT consulting firms based in Sheffield, United Kingdom

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IT consulting firms based in Sheffield, United Kingdom at a glance

As of Sep 4, 2026
1-10Median size (employees)
LondonLargest hub · 2534 HQs
Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
31
11-50
11
51-200
2
201-500
1

Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Sheffield, over 45 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Sheffield, United Kingdom whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside Sheffield are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 338 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many IT consulting firms are there based in Sheffield, United Kingdom?

RevenueBase identified 45 IT consulting firms headquartered in Sheffield, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Millgate, headquartered in Sheffield, tops this list with the largest team on record.

Which city has the most IT consulting firms?

London leads with 2534 headquartered companies, followed by Manchester (178) and Birmingham (119).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 338 verified decision-maker contacts tracked across these 45 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.