Company lists · Data refreshed November 2026

Top 25 Union construction contractors based in the United States

RevenueBase identified 13,339 company matches for union construction contractors associated with the United States as of November 2026 and tracks 289,504 professional contacts across them, including 105,691 with verified work emails. New York is the largest hub.

This list covers company matches for union construction contractors 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 November 6, 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 Nov 6, 2026 How this list was built
13,339Companies
289,504Contacts tracked
105,691Verified emails
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The 25 largest union construction contractors based in the United States

Ranked by team size
Top 25 of 13,339 company matches for union construction contractors based in the United States, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWatsonville, TX, United StatesHQ recorded Nov 6, 20265,001-10,0004,837 contacts →

Exact match

“From infrastructure that facilitates the movement of goods and people to projects that improve the way we live, work, and play, high-value partnerships power our projects and fuel…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,0004,624 contacts →

Exact match

“Clark Construction Group is one of the largest building and infrastructure companies in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchProvidence, RI, United StatesHQ recorded Nov 6, 20261,001-5,0004,383 contacts →

Exact match

“Gilbane Building Company provides a full slate of construction and facilities-related services-from preconstruction services planning and integrated consulting capabilities to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGreeley, CO, United StatesHQ recorded Nov 6, 20265,001-10,0004,371 contacts →

Exact match

“As an employee-owned company, Hensel Phelps culture is based on dedication and commitment to delivering EXCELLENCE for our clients and employees.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDallas, OR, United StatesHQ recorded Nov 6, 20261,001-5,0003,818 contacts →

Exact match

“Balfour Beatty US is an industry-leading provider of general contracting, at-risk construction management and design-build services for public and private sector clients across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBaton Rouge, NC, United StatesHQ recorded Nov 6, 20261,001-5,0003,119 contacts →

Exact match

“We began as a merit shop general industrial contractor back in 1979.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 2026n/a2,910 contacts →

Exact match

“Founded in 1982, MEB is one of today's most experienced and respected providers of construction services in the Hampton Roads region, the Commonwealth of Virginia, and throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchTempe, AZ, United StatesHQ recorded Nov 6, 20265,001-10,0002,757 contacts →

Exact match

“Sundt Construction, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchFalls Church, CA, United StatesHQ recorded Nov 6, 20261,001-5,0002,603 contacts →

Exact match

“HITT Contracting provides a wide range of construction services across the nation, from complex core and shell buildings and renovations to interior fit-outs and routine service…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMonroe, OH, United StatesHQ recorded Nov 6, 202610001+2,244 contacts →

Exact match

“The nation's largest concrete contractor, Baker Construction specializes in all types of concrete construction and related solutions, including civil construction, deep…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSouthfield, OH, United StatesHQ recorded Nov 6, 20261,001-5,0002,231 contacts →

Exact match

“Barton Malow has been living its core purpose of Building Today for a Better Tomorrow: People, Projects, and Communities for more than 100 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,881 contacts →

Exact match

“Since 1954, Cupertino Electric, Inc.(CEI) has been powered by people who’ve built a reputation for delivering high-profile, complex projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Antonio, FL, United StatesHQ recorded Nov 6, 20261,001-5,0001,439 contacts →

Exact match

“Group, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,0001,400 contacts →

Exact match

“Structure Tone was founded in 1971 in NYC, as an interior construction focused builder.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLake Oswego, WA, United StatesHQ recorded Nov 6, 20261,001-5,0001,354 contacts →

Exact match

“Hoffman Construction Company is the largest full-service general contractor and construction manager based in the Pacific Northwest, with offices in Portland, Seattle, Boise and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCincinnati, SC, United StatesHQ recorded Nov 6, 20261,001-5,0001,349 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMontgomery, AL, United StatesHQ recorded Nov 6, 20261,001-5,0001,312 contacts →

Exact match

“Caddell Construction is a customer-focused general contractor with a clear mission-constructing what matters for the long-term success of employees, clients, and strategic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWest Chester, GA, United StatesHQ recorded Nov 6, 20261,001-5,0001,307 contacts →

Exact match

“Lithko Contracting is a full-service concrete contracting company with a town-based model.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCarlsbad, CA, United StatesHQ recorded Nov 6, 20261,001-5,0001,236 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDes Moines, AZ, United StatesHQ recorded Nov 6, 20261,001-5,0001,229 contacts →

Exact match

“The Weitz Company, a subsidiary of Orascom Construction PLC, is a full-service construction company, general contractor, design-builder and construction manager with office…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchChicago, IL, United StatesHQ recorded Nov 6, 20261,001-5,0001,126 contacts →

Exact match

“Clune is a national, employee-owned general contractor, with more than 1,200 talented professionals located in eight offices across the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPittsfield, ME, United StatesHQ recorded Nov 6, 20261,001-5,0001,110 contacts →

Exact match

“Cianbro is one of the United States’ largest, most diverse, successful, open shop, 100% employee-owned construction and construction services companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWesterville, OH, United StatesHQ recorded Nov 6, 20261,001-5,0001,099 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSanford, LA, United StatesHQ recorded Nov 6, 2026501-1,0001,072 contacts →

Exact match

“Wharton-Smith, Inc-''The Construction Group of Choice" Our Vision…to be the construction group of choice for our employees, our clients, and the communities we serve.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a1,068 contacts →

Exact match

“The International Union of Operating Engineers (IUOE) represents over working people across the United States and Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 13,339 union construction contractors based in the United States

See the full list, filter by size, metro and specialty, and access 105,691 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Union construction contractors based in the United States at a glance

As of Nov 6, 2026
36.5%Verified-email coverage
21.7Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
5,089
11-50
5,419
51-200
2,124
201-500
444
501-1,000
121
1,001-5,000
69
5,001-10,000
12
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 13,339 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 “union construction 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. 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 105,691 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.

Union construction contractors by metro

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 “union construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many union construction contractors are there based in the United States?

RevenueBase identified 13,339 company matches for union construction contractors associated with the United States 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?

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

Which city has the most union construction contractors?

New York leads with 274 company records, followed by Houston (202) and Dallas (115).

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 105,691 professional contacts with verified work emails tracked across these 13,339 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.