Company lists · Data refreshed September 2026
Top 25 Mission critical facility builders worldwide
RevenueBase identified 1,644 mission critical facility builders worldwide as of September 2026 and tracks 45,631 professional contacts across them, including 16,855 with verified work emails. The United States is the largest market and London the largest hub.
This list covers mission critical facility builders worldwide, 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 20, 2026. Country and city lists for mission critical facility builders follow the table.
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 25 largest mission critical facility builders worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,761 contacts → | ||||
Indirect evidence “M.C.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,009 contacts → | ||||
Indirect evidence “Digital infrastructure leader driven by purpose, innovation and community impact.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,560 contacts → | ||||
Indirect evidence “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,049 contacts → | ||||
Strong evidence “Switch was founded in by CEO Rob Roy and stands at the forefront as the premier data center designer, builder and operator, owning 100% of its land and facilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 924 contacts → | ||||
Indirect evidence “About Silent-Aire Founded in 1994, Silent-Aire is technology driven company that designs, engineers, manufactures and services hyperscale data center solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 803 contacts → | ||||
Indirect evidence “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 785 contacts → | ||||
Strong evidence “RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 764 contacts → | ||||
Indirect evidence “Winthrop Technologies is a dedicated data centre delivery partner providing turnkey solutions to our clients, headquartered in Dublin and delivering throughout Europe.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 585 contacts → | ||||
Indirect evidence “Onnec is a leading partner for IT Infrastructure design, installation and operational support services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 514 contacts → | ||||
Indirect evidence “A Graham Group Company We build to improve lives.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 505 contacts → | ||||
Partial evidence “At Polk Mechanical, a TriplePoint Company, we provide facility lifecycle services based on quality, integrity, and value for our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 428 contacts → | ||||
Indirect evidence “TAS is a global technology company that provides modular engineered products for data centers and other industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 423 contacts → | ||||
Strong evidence “NV5 Mission Critical is a trusted leader in mission-critical design and commissioning management with a strong international presence.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 415 contacts → | ||||
Indirect evidence “At Colt Data Centre Services, we aspire to our customers’ success, ensuring your growth is supported by the best infrastructure solution for your business’ unique vision.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 373 contacts → | ||||
Indirect evidence “Integra is an industry-leading team designing & delivering innovative turnkey data centers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 369 contacts → | ||||
Indirect evidence “Com mais de meio século de experiência, a Clemar Engenharia constrói uma trajetória sólida e inovadora que a posiciona como referência nacional nos segmentos de Telecomunicações…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 344 contacts → | ||||
Indirect evidence “Pro-Matrix, prides on developing and designing data centers tailored to meet all our client’s business needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 343 contacts → | ||||
Strong evidence “ComNet Communications is a national network infrastructure integrator delivering large-scale, mission-critical deployments across the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 317 contacts → | ||||
Indirect evidence “A Aceco TI é uma empresa líder na construção de data centers na América Latina.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 313 contacts → | ||||
Partial evidence “FCL is an industrial and commercial design builder and general contractor serving customers nationwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 310 contacts → | ||||
Partial evidence “Vertiv is a global leader in critical digital infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 301 contacts → | ||||
Strong evidence “Since 2009, National Technologies (NTI) has installed mission-critical data center infrastructure and OSP and ISP fiber solutions to keep our customers connected and competitive.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 293 contacts → | ||||
Indirect evidence “Sky IT Infratech is an innovative and exciting Data Center & Server Room solutions provider company, which primarily focuses on DC IT Infrastructure platform & business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 288 contacts → | ||||
Indirect evidence “Build smarter.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 272 contacts → | ||||
Indirect evidence “Compass Datacenters does data centers differently.” Source: RevenueBase Database · checked Sep 20, 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: mission critical facility builders. 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 mission critical facility builders.
- Partial evidence
- Its own public description names part of mission critical facility builders, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name mission critical facility builders. 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 25 of 1,644 mission critical facility builders worldwide
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Mission critical facility builders worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 mission critical facility builders, 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.
- Coverage
- Every country. Country and city lists for mission critical facility builders are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “mission critical facility builders”. 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 mission critical facility builders), 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 mission critical facility builders, and records with no verified work email.
- 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, 16,855 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 20, 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.
Mission critical facility builders by location
12 lists · largest firstEvery Mission critical facility builders list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Mission critical facility builders based in the United States434
- Mission critical facility builders based in the United Kingdom88
- Mission critical facility builders based in Brazil70
- Mission critical facility builders based in India48
- Mission critical facility builders based in Germany47
- Mission critical facility builders based in Canada45
- Mission critical facility builders based in Mexico41
- Mission critical facility builders based in France37
- Mission critical facility builders based in Spain33
- Mission critical facility builders based in the Netherlands31
- Mission critical facility builders based in the United Arab Emirates29
- Mission critical facility builders based in Türkiye27
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 mission critical facility builders, 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 mission critical facility builders are there worldwide?
RevenueBase identified 1,644 mission critical facility builders worldwide 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?
M.C. Dean, INC, headquartered in Tysons, tops this list with the largest team on record.
Which country has the most mission critical facility builders?
The United States leads with 434 companies, followed by the United Kingdom (88) and Brazil (70). Every mission critical facility builders list by country and city is linked on this page.
Which city has the most mission critical facility builders?
London leads with 28 headquartered companies, followed by Sao Paulo (19) and Singapore (17).
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 16,855 verified decision-maker contacts tracked across these 1,644 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 20, 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.