Company lists · Data refreshed October 2026

Top 25 IT infrastructure contractors worldwide

Name: IT infrastructure contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 17, 2026 12,285 companies tracked

RevenueBase identified 12,285 company matches for IT infrastructure contractors worldwide as of October 2026 and tracks 165,654 professional contacts across them, including 37,288 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for IT infrastructure contractors 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 October 17, 2026. Country and city lists for IT infrastructure contractors 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 Oct 17, 2026 How this list was built

12,285Companies

165,654Contacts tracked

37,288Verified emails

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The 25 largest IT infrastructure contractors worldwide

Ranked by team size

Top 25 of 12,285 company matches for IT infrastructure contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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	Black BOX	Exact match	Plano, TX, United StatesHQ recorded Oct 17, 2026	1,001-5,000	3,799 contacts →
	Exact match “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2	TRT	Exact match	Singapore, GermanyHQ recorded Oct 17, 2026	n/a	2,132 contacts →
	Exact match “TRT is a Global Provider of IT Server, Storage and Networking Services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3	IES Communications	Exact match	Tempe, AZ, United StatesHQ recorded Oct 17, 2026	1,001-5,000	1,887 contacts →
	Exact match “IES Communications, a division of IES Holdings, Inc.(NASDAQ: IESC), is a national technology infrastructure integrator.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4	Congruex	Exact match	Boulder, CO, United StatesHQ recorded Oct 17, 2026	1,001-5,000	1,666 contacts →
	Exact match “Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5	Wachter, INC	Exact match	Lenexa, KS, United StatesHQ recorded Oct 17, 2026	1,001-5,000	1,299 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 · Oct 17, 2026 · View company records in RevenueBase
6	Bergelectric	Exact match	Carlsbad, CA, United StatesHQ recorded Oct 17, 2026	1,001-5,000	1,210 contacts →
	Exact match “Since their inception in 1946, Bergelectric has made its mark on the construction industry by providing the highest quality electrical and technology contracting.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7	Pt. Mastersystem Infotama	Exact match	Dki Jakarta, IndonesiaHQ recorded Oct 17, 2026	501-1,000	1,178 contacts →
	Exact match “PT.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8	Kelly Group	Exact match	Wembley, United KingdomHQ recorded Oct 17, 2026	1,001-5,000	1,111 contacts →
	Exact match “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9	Ervin Cable Construction LLC	Exact match	Sturgis, KY, United StatesHQ recorded Oct 17, 2026	1,001-5,000	981 contacts →
	Exact match “Ervin Cable Construction, LLC (ECC) is a seasoned leader in telecommunications construction, founded in 1980.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10	ITG Communications, LLC	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Oct 17, 2026	1,001-5,000	939 contacts →
	Exact match “Founded in 2013, ITG is a national provider of end-to-end digital infrastructure services delivered through a turnkey model.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11	Designer Group	Exact match	Dublin, IrelandHQ recorded Oct 17, 2026	1,001-5,000	937 contacts →
	Exact match “Designer Group is a leading Irish-owned engineering contractor delivering projects across Energy & Industrial, Data Centres and Building Services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12	Strategic Infra Services	Exact match	Bangalore, IndiaHQ recorded Oct 17, 2026	n/a	926 contacts →
	Exact match “Strategic Infra Services is agile, open-minded, and enthusiastic about innovation in IT, manpower, Civil & Infrastructure services in the government and private sector.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13	Comware S.A	Exact match	Bogotá, ColombiaHQ recorded Oct 17, 2026	1,001-5,000	924 contacts →
	Exact match “Somos un equipo profesional en el diseño, implementación y gestión de soluciones tecnológicas, que apoya el desarrollo y soporte de su negocio.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14	KAD Construction	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 17, 2026	501-1,000	892 contacts →
	Exact match “KAD is a multi-disciplinary construction company which has expanded its operation in strategic infrastructure projects to become one of the most reliable contracting companies in…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15	Fredon	Exact match	Silverwater, AustraliaHQ recorded Oct 17, 2026	1,001-5,000	821 contacts →
	Exact match “Fredon is an Australian leader in Electrical, HVAC, Infrastructure and Technology services, backed by 24/7 national maintenance capability.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16	BK Gulf LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 17, 2026	5,001-10,000	819 contacts →
	Exact match “Established in 1978, BK Gulf LLC is a leading contractor in electrical, mechanical, instrumentation and building services within the UAE & Middle East market.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Oct 17, 2026	1,001-5,000	717 contacts →
	Exact match “Our story began in 1994 with a simple vision: Build a company that does things right.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18	Boom Construction Company	Exact match	United StatesHQ recorded Oct 17, 2026	n/a	698 contacts →
	Exact match “Boom Construction is a grade A contracting company established since 1995, leading amongst other specialist discipline companies that comprises of Boom Group of companies.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19	Smartlink Group	Exact match	Annapolis, MD, United StatesHQ recorded Oct 17, 2026	501-1,000	692 contacts →
	Exact match “Smartlink powers the digital infrastructure behind today’s connected world.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20	Insyte Instalaciones	Exact match	Getafe, SpainHQ recorded Oct 17, 2026	1,001-5,000	672 contacts →
	Exact match “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Oct 17, 2026	1,001-5,000	662 contacts →
	Exact match “As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22	ADB Companies, LLC	Exact match	Pacific, MO, United StatesHQ recorded Oct 17, 2026	1,001-5,000	641 contacts →
	Exact match “ADB is an industry-leading infrastructure solutions provider, proudly building networks, connections, and partnerships nationwide within the telecommunications and utility…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23	Structural	Exact match	Columbia, MD, United StatesHQ recorded Oct 17, 2026	1,001-5,000	626 contacts →
	Exact match “STRUCTURAL integrates technology-driven solutions into its industry-leading specialty contracting services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24	ONNEC	Exact match	London, United KingdomHQ recorded Oct 17, 2026	501-1,000	620 contacts →
	Exact match “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Oct 17, 2026	501-1,000	615 contacts →
	Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Oct 17, 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 infrastructure contractors”. 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 12,285 IT infrastructure contractors worldwide

See the full list, filter by size, metro and specialty, and access 37,288 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT infrastructure contractors worldwide at a glance

As of Oct 17, 2026

22.5%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Oct 17, 2026Page data refreshed

Companies by employee count

1-10

6,290

11-50

3,905

51-200

1,376

201-500

372

501-1,000

139

1,001-5,000

103

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 infrastructure contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “IT infrastructure contractors” 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 37,288 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 October 17, 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 infrastructure contractors by location

68 lists · largest first

Every IT infrastructure contractors 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 infrastructure contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT infrastructure contractors are there worldwide?

RevenueBase identified 12,285 company matches for IT infrastructure contractors worldwide as of October 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?

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

Which country has the most IT infrastructure contractors?

The United States leads with 2,198 companies, followed by India (899) and Brazil (865). Every IT infrastructure contractors list by country and city is linked on this page.

Which city has the most IT infrastructure contractors?

Sao Paulo leads with 171 company records, followed by London (124) and Dubai (108).

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 37,288 professional contacts with verified work emails tracked across these 12,285 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 October 17, 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.