Company lists · Data refreshed September 2026

Top 25 Data center design and build contractors based in the United States

RevenueBase identified 1,021 data center design and build contractors headquartered in the United States as of September 2026 and tracks 65,659 professional contacts across them, including 28,059 with verified work emails. New York is the largest hub.

This list covers data center design and build contractors headquartered in the United States, 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 16, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
1,021Companies
65,659Contacts tracked
28,059Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest data center design and build contractors based in the United States

Ranked by team size
Top 25 of 1,021 data center design and build contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to data center design and build contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceColumbus, OH, United StatesHQ checked Sep 16, 202610001+14,610 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
2Strong evidenceDenver, CO, United StatesHQ checked Sep 16, 20261,001-5,0002,090 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceSterling, VA, United StatesHQ checked Sep 16, 20261,001-5,0002,009 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceKennesaw, GA, United StatesHQ checked Sep 16, 20261,001-5,0001,865 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceTempe, AZ, United StatesHQ checked Sep 16, 20261,001-5,0001,800 contacts →

Indirect evidence

“IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceBoulder, CO, United StatesHQ checked Sep 16, 20261,001-5,0001,676 contacts →

Indirect evidence

“Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.”

Source: RevenueBase Database · checked Sep 16, 2026
7Strong evidenceSan Diego, CA, United StatesHQ checked Sep 16, 20261,001-5,0001,560 contacts →

Strong 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 16, 2026
8Partial evidenceFremont, CA, United StatesHQ checked Sep 16, 202610001+1,138 contacts →

Partial evidence

“Hyve Solutions is a leader in the design to worldwide deployment of hyperscale digital infrastructures.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceLas Vegas, NV, United StatesHQ checked Sep 16, 20261,001-5,0001,049 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 16, 2026
10Indirect evidenceDenver, CO, United StatesHQ checked Sep 16, 20261,001-5,0001,036 contacts →

Indirect evidence

“STACK provides digital infrastructure to scale the world’s most innovative companies.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceFranklin, WI, United StatesHQ checked Sep 16, 20261,001-5,000923 contacts →

Strong evidence

“We provide high-end technical and professional services for the entire lifecycle of data centers.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceDallas, TX, United StatesHQ checked Sep 16, 2026501-1,000868 contacts →

Indirect evidence

“DataBank Holdings Ltd.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 16, 2026201-500849 contacts →

Indirect evidence

“IO is now Iron Mountain.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceCentennial, CO, United StatesHQ checked Sep 16, 2026501-1,000833 contacts →

Indirect evidence

“Flexential empowers the IT journey of the nation’s most complex businesses by offering tailored hybrid IT solutions delivered via the FlexAnywhere® platform of integrated…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceNew York, United StatesHQ checked Sep 16, 2026501-1,000803 contacts →

Indirect evidence

“Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceTampa, FL, United StatesHQ checked Sep 16, 20261,001-5,000745 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceAnnapolis, MD, United StatesHQ checked Sep 16, 2026501-1,000689 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceLogan, UT, United StatesHQ checked Sep 16, 20261,001-5,000627 contacts →

Partial evidence

“As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceLive Oak, TX, United StatesHQ checked Sep 16, 2026501-1,000597 contacts →

Indirect evidence

“Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidencePhoenix, AZ, United StatesHQ checked Sep 16, 20261,001-5,000532 contacts →

Partial evidence

“Corbins is an industrial electrical contractor.”

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidenceAtlanta, GA, United StatesHQ checked Sep 16, 2026201-500531 contacts →

Strong evidence

“T5 Data Centers supports companies that are changing the world through AI and technology innovation with our development, construction, and data center operation services.”

Source: RevenueBase Database · checked Sep 16, 2026
22Strong evidenceLexington, KY, United StatesHQ checked Sep 16, 2026501-1,000474 contacts →

Strong evidence

“Amteck is one of Kentucky’s largest privately held electrical construction firms, providing design-build electrical construction services for a wide variety of facilities…”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceFarmers Branch, TX, United StatesHQ checked Sep 16, 2026501-1,000437 contacts →

Indirect evidence

“JMEG is a team of professionals who have been providing electrical construction services for over 35 years throughout the state of Texas.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceHouston, TX, United StatesHQ checked Sep 16, 2026501-1,000428 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceHollywood, FL, United StatesHQ checked Sep 16, 2026201-500423 contacts →

Partial 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 16, 2026

Showing 25 of 1,021 data center design and build contractors based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,059 reachable decision-makers.

Free signup · no credit card

View the full list →

Data center design and build contractors based in the United States at a glance

As of Sep 16, 2026
42.7%Verified-email coverage
64.3Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · New York
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
347
11-50
356
51-200
187
201-500
63
501-1,000
37
1,001-5,000
24
5,001-10,000
1
10001+
6

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 1,021 companies.

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 data center design and build contractors, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “data center design and build contractors”. 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 data center design and build contractors), 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 data center design and build contractors, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 28,059 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 16, 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.

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 data center design and build contractors, 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 data center design and build contractors are there based in the United States?

RevenueBase identified 1,021 data center design and build contractors headquartered in the United States 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?

Vertiv, headquartered in Columbus, tops this list with the largest team on record.

Which city has the most data center design and build contractors?

New York leads with 29 headquartered companies, followed by Dallas (28) and Houston (25).

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 28,059 verified decision-maker contacts tracked across these 1,021 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,021 data center design and build contractors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.