Company lists · Data refreshed September 2026

Top 25 Hydropower engineering firms based in the United States

Name: Hydropower engineering 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 16, 2026 621 companies tracked

RevenueBase identified 621 hydropower engineering firms headquartered in the United States as of September 2026 and tracks 38,757 professional contacts across them, including 16,155 with verified work emails. Houston is the largest hub.

This list covers hydropower engineering firms 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

621Companies

38,757Contacts tracked

16,155Verified emails

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The 25 largest hydropower engineering firms based in the United States

Ranked by team size

Top 25 of 621 hydropower engineering firms 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 hydropower engineering firms: 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	Tetra Tech	Partial evidence	Pasadena, CA, United StatesHQ checked Sep 16, 2026	10001+	12,999 contacts →
	Partial evidence “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
2	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	7,527 contacts →
	Indirect evidence “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
3	Hazen And Sawyer	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,100 contacts →
	Indirect evidence “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Source: RevenueBase Database · checked Sep 16, 2026
4	Ulteig	Partial evidence	Fargo, ND, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,362 contacts →
	Partial evidence “Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Source: RevenueBase Database · checked Sep 16, 2026
5	DUDEK	Partial evidence	Encinitas, CA, United StatesHQ checked Sep 16, 2026	501-1,000	795 contacts →
	Partial evidence “Dudek is an environmental, planning, and engineering consulting firm.” Source: RevenueBase Database · checked Sep 16, 2026
6	Hatch Mott Macdonald	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 16, 2026	1,001-5,000	762 contacts →
	Indirect evidence “This page is now closed.” Source: RevenueBase Database · checked Sep 16, 2026
7	Shimmick Corporation	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	760 contacts →
	Indirect evidence “At Shimmick (NASDAQ: SHIM), we’re shaping the future of sustainable infrastructure through innovative solutions that advance communities and protect our environment.” Source: RevenueBase Database · checked Sep 16, 2026
8	Schnabel Engineering	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 16, 2026	501-1,000	707 contacts →
	Indirect evidence “Schnabel is a trusted partner in building the foundation for project success.” Source: RevenueBase Database · checked Sep 16, 2026
9	Arb, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	528 contacts →
	Indirect evidence “ARB Inc.” Source: RevenueBase Database · checked Sep 16, 2026
10	Anchor QEA	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	501-1,000	479 contacts →
	Partial evidence “Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Source: RevenueBase Database · checked Sep 16, 2026
11	Tata & Howard, INC	Partial evidence	Marlborough, MA, United StatesHQ checked Sep 16, 2026	51-200	315 contacts →
	Partial evidence “Tata & Howard is a 100% employee owned, award-winning, specialized consulting engineering firm dedicated to providing superior client service coupled with delivering…” Source: RevenueBase Database · checked Sep 16, 2026
12	West Yost	Partial evidence	Davis, CA, United StatesHQ checked Sep 16, 2026	201-500	279 contacts →
	Partial evidence “West Yost is a water-focused consulting engineering firm ranked by Fortune Magazine as one of the “Best Small and Medium Workplaces in Consulting and Professional Services” 2023 -…” Source: RevenueBase Database · checked Sep 16, 2026
13	Christopher B. Burke Engineering, LTD	Indirect evidence	Rosemont, IL, United StatesHQ checked Sep 16, 2026	201-500	267 contacts →
	Indirect evidence “Christopher B.” Source: RevenueBase Database · checked Sep 16, 2026
14	Jva, INC	Partial evidence	Boulder, CO, United StatesHQ checked Sep 16, 2026	51-200	258 contacts →
	Partial evidence “JVA, Incorporated is an employee-owned consulting engineering firm with offices in Boulder, Fort Collins, Winter Park, Glenwood Springs, and Denver, Colorado.” Source: RevenueBase Database · checked Sep 16, 2026
15	Sukut Construction, LLC	Indirect evidence	Santa Ana, CA, United StatesHQ checked Sep 16, 2026	501-1,000	227 contacts →
	Indirect evidence “Sukut Construction is one of America’s leading heavy civil contractors with over 55 years of proven industry expertise on residential, public, and commercial projects.” Source: RevenueBase Database · checked Sep 16, 2026
16	Boswell	Partial evidence	South Hackensack, NJ, United StatesHQ checked Sep 16, 2026	201-500	190 contacts →
	Partial evidence “Boswell is a leading, fully integrated, multi-disciplinary firm providing a comprehensive range of engineering and power & energy services to federal, state, county, and local…” Source: RevenueBase Database · checked Sep 16, 2026
17	United Engineers & Constructors An Aecon Company	Partial evidence	Mount Laurel, NJ, United StatesHQ checked Sep 16, 2026	201-500	187 contacts →
	Partial evidence “United Engineers & Constructors is an industry-leading infrastructure engineering, procurement, construction, and consulting company dedicated to improving lives by delivering the…” Source: RevenueBase Database · checked Sep 16, 2026
18	Rizzo International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 16, 2026	51-200	165 contacts →
	Partial evidence “RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.” Source: RevenueBase Database · checked Sep 16, 2026
19	Dubois & King, INC	Partial evidence	Randolph, VT, United StatesHQ checked Sep 16, 2026	51-200	151 contacts →
	Partial evidence “Established in 1962, DuBois & King is a multidisciplined consulting engineering firm with extensive experience providing planning, permitting, and technical design services.” Source: RevenueBase Database · checked Sep 16, 2026
20	Entech Engineering, INC	Partial evidence	Reading, PA, United StatesHQ checked Sep 16, 2026	51-200	150 contacts →
	Partial evidence “HELPING CLIENTS MAKE MORE INFORMED DECISIONS Entech Engineering, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
21	Marine Solutions, INC	Indirect evidence	Nicholasville, KY, United StatesHQ checked Sep 16, 2026	51-200	145 contacts →
	Indirect evidence “Marine Solutions is a premier marine and bridge infrastructure firm which delivers complex solutions to demanding projects.” Source: RevenueBase Database · checked Sep 16, 2026
22	PND Engineers, INC	Partial evidence	Anchorage, AK, United StatesHQ checked Sep 16, 2026	51-200	139 contacts →
	Partial evidence “PND Engineers, Inc.(PND) is a consulting engineering firm founded in 1979 in Anchorage, Alaska.” Source: RevenueBase Database · checked Sep 16, 2026
23	Water Works Engineers	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 16, 2026	51-200	135 contacts →
	Partial evidence “Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…” Source: RevenueBase Database · checked Sep 16, 2026
24	Montgomery & Associates	Indirect evidence	Tucson, AZ, United StatesHQ checked Sep 16, 2026	51-200	126 contacts →
	Indirect evidence “M&A is a water resource consulting firm that partners with clients to address their evolving water resource challenges.” Source: RevenueBase Database · checked Sep 16, 2026
25	Chen Moore And Associates	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 16, 2026	51-200	112 contacts →
	Partial evidence “Founded in 1986, Chen Moore and Associates (CMA) specializes in civil engineering, water resources, water and sewer, landscape architecture, electrical engineering…” Source: RevenueBase Database · checked Sep 16, 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: hydropower engineering firms. 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 hydropower engineering firms.
Partial evidence: Its own public description names part of hydropower engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydropower engineering firms. 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 621 hydropower engineering firms based in the United States

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Hydropower engineering firms based in the United States at a glance

As of Sep 16, 2026

41.7%Verified-email coverage

62.4Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

312

11-50

214

51-200

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 621 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 hydropower engineering firms, 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 “hydropower engineering firms”. 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 hydropower engineering firms), 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 hydropower engineering firms, 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, 16,155 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 hydropower engineering firms, 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 hydropower engineering firms are there based in the United States?

RevenueBase identified 621 hydropower engineering firms 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?

Tetra Tech, headquartered in Pasadena, tops this list with the largest team on record.

Which city has the most hydropower engineering firms?

Houston leads with 18 headquartered companies, followed by Portland (15) and Denver (13).

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 16,155 verified decision-maker contacts tracked across these 621 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.

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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.