Company lists · Data refreshed November 2026

Top 25 IT maintenance and support companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 14,572 companies tracked

RevenueBase identified 14,572 company matches for IT maintenance and support companies worldwide as of November 2026 and tracks 93,759 professional contacts across them, including 21,817 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for IT maintenance and support 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 maintenance and support 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

14,572Companies

93,759Contacts tracked

21,817Verified emails

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The 25 largest IT maintenance and support companies worldwide

Ranked by team size

Top 25 of 14,572 company matches for IT maintenance and support 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	PCS	Exact match	Moorestown, NJ, United StatesHQ recorded Nov 6, 2026	201-500	355 contacts →
	Exact match “Teamwork.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	LRS Services P LTD	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	201-500	298 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 · Nov 6, 2026 · View company records in RevenueBase
12	A&o IT Group	Exact match	Bracknell, DE, United KingdomHQ recorded Nov 6, 2026	201-500	277 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 · Nov 6, 2026 · View company records in RevenueBase
13	Arantes TI	Exact match	Sao Paulo, United StatesHQ recorded Nov 6, 2026	n/a	268 contacts →
	Exact match “Ela permite que você cresça a empresa para além de manutenção e suporte, incluindo Service Desk, infraestrutura, redes, cabeamento, projetos, consultoria e soluções corporativas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Ongc Systems	Exact match	Arundel, AustraliaHQ recorded Nov 6, 2026	n/a	252 contacts →
	Exact match “ONGC Systems provides businesses with comprehensive IT services, that automate and streamline operations, reduce risk and increase stability while lowering the cost of system…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Wolkit Soluciones DE TI	Exact match	MexicoHQ recorded Nov 6, 2026	n/a	252 contacts →
	Exact match “Corporativo Guadalajara” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Metaline	Exact match	Nanterre, FranceHQ recorded Nov 6, 2026	501-1,000	244 contacts →
	Exact match “METALINE, c’est une expertise de plus de 35 ans avec plus de utilisateurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Geeks On Site	Exact match	Coral Gables, FL, United StatesHQ recorded Nov 6, 2026	201-500	207 contacts →
	Exact match “Geeks on Site provides onsite and remote computer repair and technical support, depending on each customer’s needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Technoma	Exact match	Asuncion, ParaguayHQ recorded Nov 6, 2026	n/a	200 contacts →
	Exact match “Somos conscientes de la importancia de tener disponibles las soluciones tecnológicas el mayor tiempo posible dentro de las empresas, por ello, y a través de acuerdos de soporte…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Mahr EDV Gmbh	Exact match	Berlin, GermanyHQ recorded Nov 6, 2026	201-500	196 contacts →
	Exact match “Since Mahr EDV has been synonymous with reliable IT support, excellent service, and the highest customer satisfaction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	School District 205	Exact match	United StatesHQ recorded Nov 6, 2026	501-1,000	187 contacts →
	Exact match “As a District Technical Support Representative, the responsibilities that I hold are to: Install and perform repairs to hardware, software, and peripheral equipment, following…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	FIT Technologies	Exact match	Cleveland, OH, United StatesHQ recorded Nov 6, 2026	51-200	174 contacts →
	Exact match “FIT Technologies is a full-service Managed IT Provider that develops long-term technology partnerships with our clients to increase efficiency, productivity, and security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Beltis	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	201-500	166 contacts →
	Exact match “A BELLCOMSYS é uma empresa especializada em Tecnologia de Informação e suporte corporativo com 15 anos de experiência.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	MILA	Exact match	Zurich, SwitzerlandHQ recorded Nov 6, 2026	n/a	165 contacts →
	Exact match “Founded in 2013, Mila is today present in Switzerland, Germany, United-Kingdom, France and Austria.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	SD Tech	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	n/a	159 contacts →
	Exact match “For over twenty five years, SD Tech has been providing IT Support for small and medium-sized businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	OK	Exact match	Reykjavík, IcelandHQ recorded Nov 6, 2026	51-200	149 contacts →
	Exact match “OK er öflugt tölvufyrirtæki sem sérhæfir sig í þjónustu og rekstri tölvukerfa.” 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 maintenance and support 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 14,572 IT maintenance and support companies worldwide

See the full list, filter by size, metro and specialty, and access 21,817 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT maintenance and support companies worldwide at a glance

As of Nov 6, 2026

23.3%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,505

11-50

3,110

51-200

492

201-500

121

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 maintenance and support companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT maintenance and support 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 21,817 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 maintenance and support companies by location

57 lists · largest first

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

How many IT maintenance and support companies are there worldwide?

RevenueBase identified 14,572 company matches for IT maintenance and support 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 maintenance and support companies?

The United States leads with 3,986 companies, followed by the United Kingdom (1,305) and Brazil (887). Every IT maintenance and support companies list by country and city is linked on this page.

Which city has the most IT maintenance and support companies?

London leads with 245 company records, followed by Sao Paulo (163) and New York (88).

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 21,817 professional contacts with verified work emails tracked across these 14,572 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.