Company lists · Data refreshed September 2026
Top 24 IT consultancy services based in Cardiff, United Kingdom
RevenueBase identified 58 IT consultancy services headquartered in Cardiff, United Kingdom as of September 2026 and tracks 433 professional contacts across them, including 140 with verified work emails. London is the largest hub.
This list covers IT consultancy services headquartered in Cardiff, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 24 largest IT consultancy services based in Cardiff, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 51 contacts → | ||||
Indirect evidence “Experts in digital transformation, we work closely with you to plan, prepare, and implement integrated technologies to revolutionise the way you work.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 33 contacts → | ||||
Partial evidence “We act as the eyes and ears for our customers’ IT operations, watching out for risk, safeguarding data and constantly championing best in class network, application and cloud…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 32 contacts → | ||||
Indirect evidence “bedigital delivers innovative solutions that provide efficiency and optimisation, enabling leaders at all levels to focus on what matters most – driving value and achieving their…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 31 contacts → | ||||
Indirect evidence “Now trading under the brand ARO Technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 27 contacts → | ||||
Indirect evidence “Our Cardiff office was founded in 2005 delivering smart and brilliant software solutions to the public and private sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 18 contacts → | ||||
Partial evidence “We provide strategic IT Support and innovative infrastructure solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 13 contacts → | ||||
Partial evidence “Overview: Enterprise Automation Services (EAS) help transform organisational IT to increase efficiencies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 contacts → | ||||
Indirect evidence “M4 is an agile digital services delivery company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Indirect evidence “We help businesses like yours take full advantage of the technology available today.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Indirect evidence “At Opencentric, we help organisations deliver meaningful digital transformation-improving how they operate, serve users, and scale impact.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Partial evidence “Spirit Public Sector is a technology consultancy firm working exclusively for public sector organisations, to help them to drive value for the public purse, particularly in the…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Indirect evidence “RedCortex are leading Cloud Transformation, Architecture and Programme Management experts.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Partial evidence “Ikona IT Solutions is a rapidly growing IT company based in Cardiff, South Wales with extensive experience in providing real business solutions and delivery of all your computer…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Indirect evidence “At Rover Engineering, we're dedicated to guiding small businesses and large enterprises through their digital transformation journey.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Indirect evidence “Terrafirma enables our customers to develop quick, agile, and innovative processes that have helped them lower costs, reduce risk, achieve objectives, expand operations, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Partial evidence “ScaleAround is a technology consultancy for growing businesses.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect evidence “I’m Sherona and I talk about business operational discipline, excellence, planning, accountability, and execution among other things… Whether you’re looking to streamline, grow…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “Quicksmart IT, based in Cardiff, specialises in providing tailored IT support and cyber security services for your business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “Prism Technology takes a clear, organized approach to deliverying professional results for your business' requirements.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “Consortium X is a Consultancy based out of Cardiff Wales, we specialise in Digital Transformation and Engineering Services across Private and Public Sector Spaces.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Partial evidence “Whether you’re an IT whizz or you don’t know a server from a spambot, we’ve got the services and support you need to do business confidently in the technological age.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “Data & AI Driven Transformation Consultancy” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “JRJC is a small firm that packs a big punch.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “IT73 specialize in experienced consulting to help businesses optimise I.T outcomes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT consultancy services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT consultancy services.
- Partial evidence
- Its own public description names part of IT consultancy services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT consultancy services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 24 of 58 IT consultancy services based in Cardiff, United Kingdom
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IT consultancy services based in Cardiff, United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for Cardiff, so it is reported there. Company counts and contact totals on this page are exact for Cardiff, over 58 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 consultancy services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Cardiff, United Kingdom whose own description of what they do matches “IT consultancy services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT consultancy services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among IT consultancy services, and records with no verified work email. Companies headquartered outside Cardiff 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 its RevenueBase Smart Search 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, 140 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 27, 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.
IT consultancy services by metro in the United Kingdom
- IT consultancy services in London3295
- IT consultancy services in Manchester224
- IT consultancy services in Birmingham142
- IT consultancy services in Bristol118
- IT consultancy services in Reading101
- IT consultancy services in Glasgow99
- IT consultancy services in Leeds97
- IT consultancy services in Edinburgh84
- IT consultancy services in Milton Keynes68
- IT consultancy services in Cardiff58
- IT consultancy services in Sheffield58
- IT consultancy services in Cambridge52
- IT consultancy services in Liverpool49
- IT consultancy services in Coventry45
- IT consultancy services in Nottingham45
- IT consultancy services in Southampton45
- IT consultancy services in Leicester44
- IT consultancy services in Northampton43
- IT consultancy services in Newcastle Upon Tyne39
- IT consultancy services in Cheltenham36
- IT consultancy services in Brighton35
- IT consultancy services in York35
- IT consultancy services in Oxford34
- IT consultancy services in Aberdeen33
- IT consultancy services in Derby33
- IT consultancy services in Guildford32
- IT consultancy services in Harrow31
- IT consultancy services in Ilford31
- IT consultancy services in Poole31
- IT consultancy services in Belfast30
- IT consultancy services in Slough29
- IT consultancy services in Swindon29
- IT consultancy services in Watford29
- IT consultancy services in Basingstoke27
- IT consultancy services in Luton27
- IT consultancy services in Peterborough27
- IT consultancy services in Bournemouth25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT consultancy services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many IT consultancy services are there based in Cardiff, United Kingdom?
RevenueBase identified 58 IT consultancy services headquartered in Cardiff, 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?
Techsol, headquartered in Cardiff, tops this list with the largest team on record.
Which city has the most IT consultancy services?
London leads with 3295 headquartered companies, followed by Manchester (224) and Birmingham (142).
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 140 verified decision-maker contacts tracked across these 58 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 27, 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 Smart Search, 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.
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