Company lists · Data refreshed November 2026

Top 25 IT support and maintenance companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 24,388 companies tracked

RevenueBase identified 24,388 company matches for IT support and maintenance companies worldwide as of November 2026 and tracks 172,728 professional contacts across them, including 38,771 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT support and maintenance companies 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 November 6, 2026. Country and city lists for IT support and maintenance companies 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 Nov 6, 2026 How this list was built

24,388Companies

172,728Contacts tracked

38,771Verified emails

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The 25 largest IT support and maintenance companies worldwide

Ranked by team size

Top 25 of 24,388 company matches for IT support and maintenance companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Pomeroy	Exact match	Hebron, KY, PalestineHQ recorded Nov 6, 2026	1,001-5,000	2,671 contacts →
	Exact match “Technology is mission-critical to your business so it must work, continuously.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	TRT	Exact match	Singapore, GermanyHQ recorded Nov 6, 2026	n/a	2,153 contacts →
	Exact match “TRT is a Global Provider of IT Server, Storage and Networking Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Aforeserve.com LTD	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,141 contacts →
	Exact match “Aforeserve delivers IT infrastructure services, field support, and managed operations for enterprises across India.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Kantor	Exact match	Appingedam, NetherlandsHQ recorded Nov 6, 2026	n/a	1,461 contacts →
	Exact match “Bij Kantor Kantoor & Automatisering bent u aan het juiste adres voor zorgeloos computeren.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Wachter, INC	Exact match	Lenexa, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,356 contacts →
	Exact match “Wachter is on the cutting-edge of technology and infrastructure installation and has been since 1930.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Avaso Technology Solutions	Exact match	Denmark, GA, JapanHQ recorded Nov 6, 2026	1,001-5,000	1,034 contacts →
	Exact match “AVASO Technology Solutions is a global end-to-end field services ecosystem provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Ilha Service Tecnologia Ltda	Exact match	São José, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,025 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 · Nov 6, 2026 · View company records in RevenueBase
8	Interop	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,024 contacts →
	Exact match “Há 31 anos, a InterOp entrega serviços em tecnologia da informação, para empresas de todos os tamanhos e setores.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Nasstar	Exact match	Wakefield, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	840 contacts →
	Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	TPX	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	805 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 · Nov 6, 2026 · View company records in RevenueBase
11	Teamlogic IT	Exact match	United StatesHQ recorded Nov 6, 2026	1,001-5,000	694 contacts →
	Exact match “TeamLogic IT provides IT service, support, project consultation and account management for businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Decisionone	Exact match	Havertown, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	691 contacts →
	Exact match “DecisionOne is the largest global independent technology support organization in the TPM and ISO markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	RV Solutions Pvt. LTD	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	501-1,000	659 contacts →
	Exact match “Innovation and Reliability are the two corner stones through which RV Solutions ensures end to end services in the Technological Lifecycle Service Industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	SES	Exact match	DenmarkHQ recorded Nov 6, 2026	n/a	642 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 · Nov 6, 2026 · View company records in RevenueBase
15	Compnow	Exact match	Notting Hill, United KingdomHQ recorded Nov 6, 2026	501-1,000	566 contacts →
	Exact match “Compnow supplies your organisation with the building blocks needed to grow.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ESP Global Services	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	501-1,000	557 contacts →
	Exact match “ESP provides IT support services across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Solutions30 France	Exact match	Saint-denis, FranceHQ recorded Nov 6, 2026	1,001-5,000	556 contacts →
	Exact match “L’ambition du Groupe Solutions30 est de rendre accessible à tous, particuliers et entreprises, les mutations technologiques qui transforment notre vie quotidienne : hier…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Teknofix	Exact match	Istanbul, TürkiyeHQ recorded Nov 6, 2026	1,001-5,000	465 contacts →
	Exact match “Biz Kimiz?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Cmit Solutions	Exact match	Austin, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	458 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 · Nov 6, 2026 · View company records in RevenueBase
20	Soltel Group	Exact match	Seville, SpainHQ recorded Nov 6, 2026	201-500	457 contacts →
	Exact match “Consulta ofertas de trabajo en nuestro portal de empleo: http://empleo.soltel.es Soltel Group es una empresa especializada en la prestación de servicios de administración y…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Velociti	Exact match	Riverside, MO, United StatesHQ recorded Nov 6, 2026	201-500	432 contacts →
	Exact match “Around here, we say it all started with an idea: What if we developed a new approach for designing, deploying and maintaining the technology that runs a business?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Geeksquad	Exact match	Dartmouth, CanadaHQ recorded Nov 6, 2026	501-1,000	424 contacts →
	Exact match “Offer any technology services, support and setups.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Tech Domain	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	501-1,000	404 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 · Nov 6, 2026 · View company records in RevenueBase
24	Computer Troubleshooters Milton	Exact match	Milton Brisbane, AustraliaHQ recorded Nov 6, 2026	n/a	400 contacts →
	Exact match “With Computer Troubleshooters you get the best of both worlds: friendly, knowledgeable service from a locally owned & operated service provider, supported by the worlds top…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Essintial Enterprise Solutions	Exact match	Camp Hill, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	399 contacts →
	Exact match “Essintial Enterprise Solutions is a full-service IT operations partner helping multi-unit businesses scale, support, and simplify their technology.” Recorded in the RevenueBase company graph · Nov 6, 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 and maintenance companies”. 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 24,388 IT support and maintenance companies worldwide

See the full list, filter by size, metro and specialty, and access 38,771 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT support and maintenance companies worldwide at a glance

As of Nov 6, 2026

22.4%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

17,354

11-50

5,256

51-200

915

201-500

221

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 and maintenance companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT support and maintenance companies” 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 38,771 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 November 6, 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 and maintenance companies by location

97 lists · largest first

Every IT support and maintenance companies 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 and maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT support and maintenance companies are there worldwide?

RevenueBase identified 24,388 company matches for IT support and maintenance companies worldwide as of November 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?

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

Which country has the most IT support and maintenance companies?

The United States leads with 6,233 companies, followed by the United Kingdom (1,955) and Brazil (1,579). Every IT support and maintenance companies list by country and city is linked on this page.

Which city has the most IT support and maintenance companies?

London leads with 352 company records, followed by Sao Paulo (259) and New York (123).

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 38,771 professional contacts with verified work emails tracked across these 24,388 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 November 6, 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.