Company lists · Data refreshed September 2026

Top 25 Project companies based in the United States

Name: Project companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 2,348 companies tracked

RevenueBase identified 2,348 project companies headquartered in the United States as of September 2026 and tracks 33,831 professional contacts across them, including 12,203 with verified work emails. Houston is the largest hub.

This list covers project companies 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 21, 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 21, 2026 86% judged on-target in blind review

2,348Companies

33,831Contacts tracked

12,203Verified emails

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The 25 largest project companies based in the United States

Ranked by team size

Top 25 of 2,348 project companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to project companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Hill International, INC	Strong evidence	Mount Laurel, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	6,653 contacts →
	Strong evidence “Hill International provides program, project, and construction management services for clients in a range of sectors undertaking major construction projects across the world.” Source: RevenueBase Database · checked Sep 21, 2026
2	DT Global	Strong evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,763 contacts →
	Strong evidence “DT Global is a project delivery and advisory firm that works with clients worldwide to deliver sustainable positive impact.” Source: RevenueBase Database · checked Sep 21, 2026
3	Cumming Group	Strong evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,612 contacts →
	Strong evidence “At Cumming Group, we are passionate about helping our clients execute large-scale, complex projects on time and within budget.” Source: RevenueBase Database · checked Sep 21, 2026
4	Davey Resource Group, INC	Indirect evidence	Kent, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,395 contacts →
	Indirect evidence “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Source: RevenueBase Database · checked Sep 21, 2026
5	MYR Group	Indirect evidence	Thornton, CO, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,092 contacts →
	Indirect evidence “With roots dating to 1891 and 8,500+ employees, MYR Group Inc.” Source: RevenueBase Database · checked Sep 21, 2026
6	Abbott	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 21, 2026	51-200	434 contacts →
	Indirect evidence “At Abbott, we embrace excellence every day.” Source: RevenueBase Database · checked Sep 21, 2026
7	Kantata	Strong evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	501-1,000	405 contacts →
	Strong evidence “Kantata helps professional services organizations of 50 to employees ensure consistent excellence and profitability across every project.” Source: RevenueBase Database · checked Sep 21, 2026
8	Cbre Heery	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	501-1,000	396 contacts →
	Indirect evidence “CBRE \| Heery is now Turner & Townsend Heery.” Source: RevenueBase Database · checked Sep 21, 2026
9	Sevan Multi-Site Solutions	Indirect evidence	Downers Grove, IL, United StatesHQ checked Sep 21, 2026	501-1,000	395 contacts →
	Indirect evidence “Founded in 2011, Sevan Multi-Site Solutions, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
10	Weaver Consultants Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	382 contacts →
	Strong evidence “From its inception in 1991, Weaver Consultants Group has been founded upon the tenets of attentive and responsive customer service, strong project management, and solid internal…” Source: RevenueBase Database · checked Sep 21, 2026
11	HPM	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 21, 2026	51-200	252 contacts →
	Indirect evidence “HPM combines comprehensive construction-related experience with design, build, audit and move resources to offer clients a one-stop approach to complete program management for…” Source: RevenueBase Database · checked Sep 21, 2026
12	Rego Consulting	Strong evidence	Centerville, UT, United StatesHQ checked Sep 21, 2026	201-500	242 contacts →
	Strong evidence “Rego Consulting is a trusted partner in Project & Portfolio Management (PPM), Work Management, and Agile transformation-helping 60% of Fortune 100 and 70% of Fortune 20 companies…” Source: RevenueBase Database · checked Sep 21, 2026
13	CSM Group	Indirect evidence	Kalamazoo, MI, United StatesHQ checked Sep 21, 2026	51-200	239 contacts →
	Indirect evidence “We exist to create the standards that leave a legacy of doing what can’t be done.” Source: RevenueBase Database · checked Sep 21, 2026
14	The Spear Group	Indirect evidence	Peachtree Corners, GA, United StatesHQ checked Sep 21, 2026	201-500	232 contacts →
	Indirect evidence “The Spear Group has partnered with companies in a variety of industries, including gas and electric utilities, architecture and engineering firms, construction, pharmaceuticals…” Source: RevenueBase Database · checked Sep 21, 2026
15	Aegis Project Controls	Strong evidence	Silver Spring, MD, United StatesHQ checked Sep 21, 2026	51-200	202 contacts →
	Strong evidence “Founded in 2006, Aegis Project Controls is a leading project controls firm with offices across the United States and Europe.” Source: RevenueBase Database · checked Sep 21, 2026
16	Whitewater	Indirect evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	51-200	201 contacts →
	Indirect evidence “WhiteWater is a management owned, Austin based infrastructure company founded in 2016.” Source: RevenueBase Database · checked Sep 21, 2026
17	Brailsford & Dunlavey, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	200 contacts →
	Indirect evidence “Brailsford & Dunlavey is a program management firm with in-house planning capabilities.” Source: RevenueBase Database · checked Sep 21, 2026
18	S&b USA Construction & FAY	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	501-1,000	192 contacts →
	Indirect evidence “S&B USA Construction, along with its subsidiary Fay, is the construction arm of Shikun & Binui Ltd in the US.” Source: RevenueBase Database · checked Sep 21, 2026
19	Industrial Project Innovation	Strong evidence	Greenville, SC, United StatesHQ checked Sep 21, 2026	51-200	180 contacts →
	Strong evidence “IPI is an Owner’s Project Management (OPM) firm that provides construction management expertise to our clients throughout their entire program life cycle from conception to…” Source: RevenueBase Database · checked Sep 21, 2026
20	Green Expert Technology Inc. Greenxt	Strong evidence	Haddonfield, NJ, United StatesHQ checked Sep 21, 2026	51-200	163 contacts →
	Strong evidence “Green Expert Technology Inc.(GreenXT) is a small business incorporated in 2011 that provides technical consulting and project management to corporations and government agencies…” Source: RevenueBase Database · checked Sep 21, 2026
21	Odyssey Information Services	Indirect evidence	Plano, TX, United StatesHQ checked Sep 21, 2026	201-500	162 contacts →
	Indirect evidence “For over 26 years, Odyssey Information Services has partnered with organizations nationwide to deliver consulting, staffing, professional, and managed services that drive…” Source: RevenueBase Database · checked Sep 21, 2026
22	Atlantic Power & Utilities	Indirect evidence	Dedham, MA, United StatesHQ checked Sep 21, 2026	201-500	153 contacts →
	Indirect evidence “Atlantic Power is an independent power producer that owns power generation assets in eleven states in the United States and two provinces in Canada.” Source: RevenueBase Database · checked Sep 21, 2026
23	EPCON	Strong evidence	Evanston, WY, United StatesHQ checked Sep 21, 2026	201-500	151 contacts →
	Strong evidence “Epcon is a full-service project management company specializing in energy and infrastructure projects throughout the United States and Canada.” Source: RevenueBase Database · checked Sep 21, 2026
24	Avicado	Indirect evidence	Miami, MI, United StatesHQ checked Sep 21, 2026	201-500	149 contacts →
	Indirect evidence “Avicado’s team of construction industry and technology experts is dedicated to helping you get the most value out of your technology investment.” Source: RevenueBase Database · checked Sep 21, 2026
25	Gallagher Construction Company	Strong evidence	Richardson, TX, United StatesHQ checked Sep 21, 2026	51-200	148 contacts →
	Strong evidence “Gallagher Construction Services is a highly trusted project and program management firm that provides services to independent school districts, municipalities, higher education…” Source: RevenueBase Database · checked Sep 21, 2026

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: project companies. 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 project companies.
Partial evidence: Its own public description names part of project companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name project companies. 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 2,348 project companies based in the United States

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Project companies based in the United States at a glance

As of Sep 21, 2026

36.1%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

3.5%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,602

11-50

543

51-200

163

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,348 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 project companies, 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 “project companies”. 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 project companies), 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 project companies, 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, 12,203 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 21, 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.

Project companies by metro

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 project companies, 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 project companies are there based in the United States?

RevenueBase identified 2,348 project companies 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?

Hill International, INC, headquartered in Mount Laurel, tops this list with the largest team on record.

Which city has the most project companies?

Houston leads with 82 headquartered companies, followed by New York (75) and Atlanta (68).

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 12,203 verified decision-maker contacts tracked across these 2,348 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 21, 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.