Company lists · Data refreshed September 2026

Top 25 IT support firms worldwide

Name: IT support firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 30,985 companies tracked

RevenueBase identified 30,985 company matches for IT support firms worldwide as of September 2026 and tracks 195,474 professional contacts across them, including 52,053 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT support firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for IT support firms follow the table.

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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

30,985Companies

195,474Contacts tracked

52,053Verified emails

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The 25 largest IT support firms worldwide

Ranked by team size

Top 25 of 30,985 company matches for IT support firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Computer	Exact match	United StatesHQ recorded Sep 21, 2026	n/a	3,107 contacts →
	Exact match “Providing custom IT consuting services to small / medium businesses and residential.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Pomeroy	Exact match	Hebron, KY, PalestineHQ recorded Sep 21, 2026	1,001-5,000	2,447 contacts →
	Exact match “Technology is mission-critical to your business so it must work, continuously.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	CCB Technology	Exact match	Racine, WI, United StatesHQ recorded Sep 21, 2026	n/a	1,018 contacts →
	Exact match “CCB Technology provides award-winning IT support and project services to customers nationwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Ilha Service Tecnologia Ltda	Exact match	São José, BrazilHQ recorded Sep 21, 2026	1,001-5,000	985 contacts →
	Exact match “Atuante no mercado de Tecnologia desde o ano de 1991, com certificação ISO 9001 para prestação de serviços de TI e fabricação de computadores, a IlhaService é uma empresa…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	IND Corporation	Exact match	Whippany, NJ, United StatesHQ recorded Sep 21, 2026	n/a	871 contacts →
	Exact match “IND specializes in fixed-cost IT support and consulting services for small and medium-sized businesses in New Jersey.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Buchanan Technologies	Exact match	Grapevine, TX, United StatesHQ recorded Sep 21, 2026	501-1,000	818 contacts →
	Exact match “As a leading IT consulting and outsourcing services firm, Buchanan Technologies helps organizations across North America turn their business technology into a powerful competitive…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	TPX	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	751 contacts →
	Exact match “TPx is the reliable sidekick every growing business deserves, powering your tech while you take the lead.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Teamlogic IT	Exact match	United StatesHQ recorded Sep 21, 2026	1,001-5,000	656 contacts →
	Exact match “TeamLogic IT provides IT service, support, project consultation and account management for businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Decisionone	Exact match	Havertown, PA, United StatesHQ recorded Sep 21, 2026	501-1,000	623 contacts →
	Exact match “DecisionOne is the largest global independent technology support organization in the TPM and ISO markets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	SES	Exact match	DenmarkHQ recorded Sep 21, 2026	n/a	618 contacts →
	Exact match “Spar op til 80 % på den daglige drift af jeres IT miljø Lej en ekstern IT konsulent til optimering af IT i din virksomhed IT konsulent på lejebasis.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Excis Compliance	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	616 contacts →
	Exact match “Excis is a trusted global IT services company, delivering agile, multilingual support across 150+ countries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	ESP Global Services	Exact match	Reading, United KingdomHQ recorded Sep 21, 2026	501-1,000	510 contacts →
	Exact match “ESP provides IT support services across the globe.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Geeksquad	Exact match	Dartmouth, CanadaHQ recorded Sep 21, 2026	501-1,000	470 contacts →
	Exact match “Offer any technology services, support and setups.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	DBS Group	Exact match	Grimsby, United KingdomHQ recorded Sep 21, 2026	n/a	467 contacts →
	Exact match “At DBS we provide IT and telecomms support to businesses nationwide, helping them to stay connected.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	ICORP	Exact match	Querétaro, MexicoHQ recorded Sep 21, 2026	501-1,000	443 contacts →
	Exact match “icorp was founded in 1986 to provide IT Services to large organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Cmit Solutions	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	501-1,000	439 contacts →
	Exact match “CMIT Solutions is a premier IT solution company dedicated to delivering enterprise-class IT support to businesses across North America.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Tech Domain	Exact match	Sydney, AustraliaHQ recorded Sep 21, 2026	501-1,000	409 contacts →
	Exact match “Tech Domain is a global field services and technology solutions provider helping enterprises, managed service providers, telecommunications companies, and technology partners…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	PCS	Exact match	Moorestown, NJ, United StatesHQ recorded Sep 21, 2026	201-500	336 contacts →
	Exact match “Teamwork.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	PCM Enterprise Sarcom	Exact match	Lewis Center, OH, United StatesHQ recorded Sep 21, 2026	1,001-5,000	326 contacts →
	Exact match “PCM is an industry-leading added value IT Solutions Provider that develops, delivers and supports world-class IT solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	IND Innovation Private Limited	Exact match	Delhi, IndiaHQ recorded Sep 21, 2026	1,001-5,000	301 contacts →
	Exact match “Ind Innovation is a global ICT solution, consulting and managed services company headquartered in New Delhi, India.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	LRS Services P LTD	Exact match	Noida, IndiaHQ recorded Sep 21, 2026	201-500	293 contacts →
	Exact match “LRS services is an integrated and innovative technology firm providing managed IT services, maintenance services, staffing services and hardware support globally.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	SEA TPI	Exact match	La Ciotat, FranceHQ recorded Sep 21, 2026	201-500	290 contacts →
	Exact match “SEA TPI est une ESN de 450 personnes spécialisée dans les domaines des opérations informatiques.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Atlas Technica	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	281 contacts →
	Exact match “Atlas Technica was founded in 2016 with two main goals: to provide the best customer service experience possible for our clients, and to use best-in-class public cloud technology…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Crystal Service	Exact match	Санкт-петербург, RussiaHQ recorded Sep 21, 2026	201-500	258 contacts →
	Exact match “Software, Hardware and Supplies – Consulting, Supply, Service The Crystal Service company views supplying hardware to its customers not as a one-time deal, but as a result of…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	A&o IT Group	Exact match	Bracknell, United KingdomHQ recorded Sep 21, 2026	201-500	251 contacts →
	Exact match “A&O IT Group, a global leader in managed IT services, brings over 50 years of expertise and operates in over 130 countries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT support firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 30,985 IT support firms worldwide

See the full list, filter by size, metro and specialty, and access 52,053 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT support firms worldwide at a glance

As of Sep 21, 2026

26.6%Verified-email coverage

6.3Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

22,420

11-50

6,952

51-200

1,061

201-500

213

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage: Every country. Country and city lists for IT support firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT support firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 52,053 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT support firms by location

117 lists · largest first

Every IT support firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT support firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT support firms are there worldwide?

RevenueBase identified 30,985 company matches for IT support firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Computer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most IT support firms?

The United States leads with 8,960 companies, followed by the United Kingdom (3,338) and Brazil (1,316). Every IT support firms list by country and city is linked on this page.

Which city has the most IT support firms?

London leads with 607 company records, followed by Sao Paulo (259) and New York (204).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 52,053 professional contacts with verified work emails tracked across these 30,985 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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.