Company lists · Data refreshed September 2026

Top 25 Mission critical facilities companies based in the United States

RevenueBase identified 651 company matches for mission critical facilities companies associated with the United States as of September 2026 and tracks 54,271 professional contacts across them, including 21,429 with verified work emails. Houston is the largest hub.

This list covers company matches for mission critical facilities companies associated with the United States, 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 20, 2026.

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 20, 2026 How this list was built
651Companies
54,271Contacts tracked
21,429Verified emails
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The 25 largest mission critical facilities companies based in the United States

Ranked by team size
Top 25 of 651 company matches for mission critical facilities companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchColumbus, OH, United StatesHQ recorded Sep 20, 202610001+14,610 contacts →

Exact match

“Vertiv is a global leader in critical digital infrastructure for applications in data centers, communication networks, and commercial and industrial environments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchTysons, VA, United StatesHQ recorded Sep 20, 20265,001-10,0002,761 contacts →

Exact match

“M.C.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchDenver, CO, United StatesHQ recorded Sep 20, 20261,001-5,0002,090 contacts →

Exact match

“Vantage Data Centers is a global provider of digital infrastructure serving AI and cloud innovators.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchSterling, VA, United StatesHQ recorded Sep 20, 20261,001-5,0002,009 contacts →

Exact match

“Digital infrastructure leader driven by purpose, innovation and community impact.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchKennesaw, GA, United StatesHQ recorded Sep 20, 20261,001-5,0001,865 contacts →

Exact match

“ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 20261,001-5,0001,560 contacts →

Exact match

“Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchLas Vegas, NV, United StatesHQ recorded Sep 20, 20261,001-5,0001,049 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchPhoenix, AZ, United StatesHQ recorded Sep 20, 2026201-500849 contacts →

Exact match

“IO is now Iron Mountain.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchTampa, FL, United StatesHQ recorded Sep 20, 20261,001-5,000745 contacts →

Exact match

“Limbach is a leading building solutions firm delivering mission critical infrastructure that supports life’s most important moments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchAnnapolis, MD, United StatesHQ recorded Sep 20, 2026501-1,000689 contacts →

Exact match

“Smartlink powers the digital infrastructure behind today’s connected world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchGrand Prairie, TX, United StatesHQ recorded Sep 20, 2026501-1,000505 contacts →

Exact match

“At Polk Mechanical, a TriplePoint Company, we provide facility lifecycle services based on quality, integrity, and value for our clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchJacksonville, FL, United StatesHQ recorded Sep 20, 2026201-500502 contacts →

Exact match

“APR Energy delivers reliable electricity, fast.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 20, 2026501-1,000428 contacts →

Exact match

“TAS is a global technology company that provides modular engineered products for data centers and other industries.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchHollywood, FL, United StatesHQ recorded Sep 20, 2026201-500423 contacts →

Exact match

“NV5 Mission Critical is a trusted leader in mission-critical design and commissioning management with a strong international presence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchColumbus, United StatesHQ recorded Sep 20, 20261,001-5,000403 contacts →

Exact match

“The Superior Group (Superior) is a national leader in electrical design and construction and among the largest electrical contractors in the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchAshburn, VA, United StatesHQ recorded Sep 20, 2026501-1,000353 contacts →

Exact match

“Hanley Energy are global innovators in Critical Power and Energy Management solutions, with a stable of world-class engineers shared between European headquarters in Ireland…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchGrand Rapids, MI, United StatesHQ recorded Sep 20, 2026201-500334 contacts →

Exact match

“US Signal is a provider of data center services, offering connectivity, cloud hosting, colocation, data protection, and disaster recovery solutions – all powered by its wholly…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchDowners Grove, IL, United StatesHQ recorded Sep 20, 2026501-1,000301 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026201-500288 contacts →

Exact match

“Build smarter.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSan Jose, CA, United StatesHQ recorded Sep 20, 2026201-500285 contacts →

Exact match

“CH Reynolds was founded in 1983, primarily as an Electrical Contractor.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchDallas, TX, United StatesHQ recorded Sep 20, 202651-200272 contacts →

Exact match

“Compass Datacenters does data centers differently.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchTroy, NY, United StatesHQ recorded Sep 20, 2026201-500261 contacts →

Exact match

“kW MCE, Member of WSP, is solely focused on the strategic planning, engineering design, and assessment of data centers and mission critical facilities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026201-500258 contacts →

Exact match

“Overwatch is building the workforce behind the future of AI and digital infrastructure.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchEnglewood, CO, United StatesHQ recorded Sep 20, 202651-200255 contacts →

Exact match

“H5 Data Centers is one of the leading private data center owner and operators in the United States with over 4 million square feet nationally.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Sep 20, 2026201-500253 contacts →

Exact match

“CloudHQ designs, builds and operates mission critical data centers, delivered through a tailored, customer service focused platform designed to foster long-term relationships.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 651 mission critical facilities companies based in the United States

See the full list, filter by size, metro and specialty, and access 21,429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mission critical facilities companies based in the United States at a glance

As of Sep 20, 2026
39.5%Verified-email coverage
83.4Average contacts per company
11-50Median size (employees)
3.1%Largest-city concentration · Houston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
211
11-50
254
51-200
101
201-500
38
501-1,000
20
1,001-5,000
20
5,001-10,000
2
10001+
5

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 651 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “mission critical facilities 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 21,429 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 20, 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.

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 “mission critical facilities companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mission critical facilities companies are there based in the United States?

RevenueBase identified 651 company matches for mission critical facilities companies associated with the United States 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?

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

Which city has the most mission critical facilities companies?

Houston leads with 20 company records, followed by Dallas (19) and New York (13).

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 21,429 professional contacts with verified work emails tracked across these 651 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 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 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.