Company lists · Data refreshed September 2026

Top 25 Pipeline engineering consulting firms based in the United States

Name: Pipeline engineering consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,379 companies tracked

RevenueBase identified 3,379 company matches for pipeline engineering consulting firms associated with the United States as of September 2026 and tracks 313,107 professional contacts across them, including 115,638 with verified work emails. Houston is the largest hub.

This list covers company matches for pipeline engineering consulting firms 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 29, 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 29, 2026 How this list was built

3,379Companies

313,107Contacts tracked

115,638Verified emails

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The 25 largest pipeline engineering consulting firms based in the United States

Ranked by team size

Top 25 of 3,379 company matches for pipeline engineering consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 29, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Bechtel Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	10001+	25,068 contacts →
	Exact match “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	10001+	20,135 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Sep 29, 2026	10001+	12,999 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Sep 29, 2026	10001+	10,851 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	CDM Smith	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	7,527 contacts →
	Exact match “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Terracon	Exact match	Olathe, KS, United StatesHQ recorded Sep 29, 2026	5,001-10,000	6,113 contacts →
	Exact match “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	4,362 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Sargent & Lundy	Exact match	Chicago, WY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	4,156 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Team, INC	Exact match	Sugar Land, TX, United StatesHQ recorded Sep 29, 2026	5,001-10,000	3,460 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Entrust Solutions Group	Exact match	Lisle, IL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,966 contacts →
	Exact match “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Kleinfelder	Exact match	San Diego, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,344 contacts →
	Exact match “At Kleinfelder, we have been connecting great people to the best work since 1961.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	The Haskell Company	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,213 contacts →
	Exact match “Haskell delivers over $3 billion annually in Architecture, Engineering, Construction (AEC) and Consulting solutions to assure certainty of outcome for complex capital projects…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,177 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Olsson	Exact match	Lincoln, NE, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,108 contacts →
	Exact match “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,985 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	LJA	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,932 contacts →
	Exact match “Employee-Owned.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,666 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,661 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	CHA Consulting, INC	Exact match	Albany, NY, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,639 contacts →
	Exact match “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	T.D. Williamson	Exact match	Tulsa, OK, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,618 contacts →
	Exact match “T.D.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	GEI Consultants, INC	Exact match	Woburn, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,604 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Audubon Companies	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,488 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Kpff Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,487 contacts →
	Exact match “KPFF is a multi-office, multi-discipline engineering firm.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,395 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “pipeline engineering consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 3,379 pipeline engineering consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 115,638 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Pipeline engineering consulting firms based in the United States at a glance

As of Sep 29, 2026

36.9%Verified-email coverage

92.7Average contacts per company

11-50Median size (employees)

9.5%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,273

11-50

1,114

51-200

630

201-500

191

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 3,379 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 “pipeline engineering consulting firms” 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 115,638 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 29, 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.

Pipeline engineering consulting firms 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 “pipeline engineering consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pipeline engineering consulting firms are there based in the United States?

RevenueBase identified 3,379 company matches for pipeline engineering consulting firms 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?

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

Which city has the most pipeline engineering consulting firms?

Houston leads with 322 company records, followed by Dallas (45) and Denver (38).

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 115,638 professional contacts with verified work emails tracked across these 3,379 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 29, 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.