Company lists · Data refreshed September 2026

Top 25 Hydropower engineering consultants based in the United States

RevenueBase identified 1,268 company matches for hydropower engineering consultants associated with the United States as of September 2026 and tracks 132,783 professional contacts across them, including 54,994 with verified work emails. Houston is the largest hub.

This list covers company matches for hydropower engineering consultants 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 16, 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 16, 2026 How this list was built
1,268Companies
132,783Contacts tracked
54,994Verified emails
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The 25 largest hydropower engineering consultants based in the United States

Ranked by team size
Top 25 of 1,268 company matches for hydropower engineering consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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 matchDallas, TX, United StatesHQ recorded Sep 16, 202610001+63,914 contacts →

Exact match

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchPasadena, CA, United StatesHQ recorded Sep 16, 202610001+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 16, 2026 · View company records in RevenueBase
3Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 16, 20261,001-5,0002,473 contacts →

Exact match

“Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchBoca Raton, FL, United StatesHQ recorded Sep 16, 20261,001-5,0002,393 contacts →

Exact match

“Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchLincoln, NE, United StatesHQ recorded Sep 16, 20261,001-5,0002,108 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 16, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 16, 20261,001-5,0002,100 contacts →

Exact match

“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchWoburn, MA, United StatesHQ recorded Sep 16, 20261,001-5,0001,604 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchKent, OH, United StatesHQ recorded Sep 16, 20261,001-5,0001,395 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 16, 2026 · View company records in RevenueBase
9Exact matchFargo, ND, United StatesHQ recorded Sep 16, 20261,001-5,0001,362 contacts →

Exact match

“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchSouthfield, MI, United StatesHQ recorded Sep 16, 20261,001-5,0001,290 contacts →

Exact match

“Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchDenver, CO, United StatesHQ recorded Sep 16, 20261,001-5,0001,231 contacts →

Exact match

“Knight Piésold is an employee-owned, global consulting firm providing specialist services to the mining, power, water resources, and infrastructure industries.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchMinneapolis, MN, United StatesHQ recorded Sep 16, 20261,001-5,0001,088 contacts →

Exact match

“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchHomestead, PA, United StatesHQ recorded Sep 16, 2026501-1,000964 contacts →

Exact match

“Transforming ideas into reality® since 1958, GAI Consultants is an engineering, planning, and environmental consulting firm that provides customized solutions and local expertise…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchSeattle, WA, United StatesHQ recorded Sep 16, 2026501-1,000880 contacts →

Exact match

“At Parametrix, we help our clients imagine what's possible.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchEncinitas, CA, United StatesHQ recorded Sep 16, 2026501-1,000795 contacts →

Exact match

“Dudek is an environmental, planning, and engineering consulting firm.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchIselin, NJ, United StatesHQ recorded Sep 16, 20261,001-5,000762 contacts →

Exact match

“This page is now closed.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchIrvine, CA, United StatesHQ recorded Sep 16, 20261,001-5,000760 contacts →

Exact match

“At Shimmick (NASDAQ: SHIM), we’re shaping the future of sustainable infrastructure through innovative solutions that advance communities and protect our environment.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchLos Angeles, CA, United StatesHQ recorded Sep 16, 2026501-1,000748 contacts →

Exact match

“Our award-winning projects are produced through innovation, creativity, and technical expertise.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchGlen Allen, VA, United StatesHQ recorded Sep 16, 2026501-1,000707 contacts →

Exact match

“Schnabel is a trusted partner in building the foundation for project success.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchWestfield, MA, United StatesHQ recorded Sep 16, 2026501-1,000646 contacts →

Exact match

“Tighe & Bond is the Northeast’s leading engineering, environmental, planning, and design consulting firm.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchBaltimore, MD, United StatesHQ recorded Sep 16, 2026501-1,000601 contacts →

Exact match

“Established in 1915, WRA is a nationally-recognized engineering, architectural and environmental planning firm with a reputation for delivering exceptional work on time and within…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchEmeryville, CA, United StatesHQ recorded Sep 16, 2026501-1,000526 contacts →

Exact match

“Dedicated to “Excellence in Engineering,” E2 Consulting Engineers, Inc.(E2) is a professional services firm established in 1988 specializing in a full spectrum of engineering…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchSavannah, GA, United StatesHQ recorded Sep 16, 2026501-1,000491 contacts →

Exact match

“Our story began in 1946 with the collaboration of former US Army Corps of Engineers Officers, Hue Thomas and Joe Hutton, in their start-up engineering firm in Savannah, GA.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026201-500461 contacts →

Exact match

“Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchCovington, LA, United StatesHQ recorded Sep 16, 2026501-1,000450 contacts →

Exact match

“With an enduring commitment to Engineering Power-ful Solutions, Ampirical offers services with a focus on outstanding quality, value added engineering and successful project…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 1,268 hydropower engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 54,994 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydropower engineering consultants based in the United States at a glance

As of Sep 16, 2026
41.4%Verified-email coverage
104.7Average contacts per company
11-50Median size (employees)
3.2%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
607
11-50
425
51-200
153
201-500
37
501-1,000
18
1,001-5,000
20
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 1,268 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 “hydropower engineering consultants” 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 54,994 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 16, 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.

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 “hydropower engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydropower engineering consultants are there based in the United States?

RevenueBase identified 1,268 company matches for hydropower engineering consultants 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 hydropower engineering consultants?

Houston leads with 40 company records, followed by Denver (16) and Austin (15).

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 54,994 professional contacts with verified work emails tracked across these 1,268 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 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 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.