Company lists · Data refreshed October 2026

Top 25 Dam and levee engineering firms worldwide

RevenueBase identified 665 company matches for dam and levee engineering firms worldwide as of October 2026 and tracks 47,465 professional contacts across them, including 15,361 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for dam and levee engineering firms worldwide, 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 October 11, 2026. Country and city lists for dam and levee engineering firms follow the table.

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 Oct 11, 2026 How this list was built
665Companies
47,465Contacts tracked
15,361Verified emails
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The 25 largest dam and levee engineering firms worldwide

Ranked by team size
Top 25 of 665 company matches for dam and levee engineering firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchPasadena, CA, United StatesHQ recorded Oct 11, 202610001+13,725 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 · Oct 11, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Oct 11, 20265,001-10,0007,832 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 · Oct 11, 2026 · View company records in RevenueBase
3Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 11, 20261,001-5,0002,510 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 · Oct 11, 2026 · View company records in RevenueBase
4Exact matchSan Diego, CA, United StatesHQ recorded Oct 11, 20261,001-5,0002,401 contacts →

Exact match

“At Kleinfelder, we have been connecting great people to the best work since 1961.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchSparks, MD, United StatesHQ recorded Oct 11, 20261,001-5,0001,851 contacts →

Exact match

“KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchPortland, ME, United StatesHQ recorded Oct 11, 20261,001-5,0001,077 contacts →

Exact match

“Woodard & Curran is more than just a consulting firm – we are an employee-owned integrated science, engineering, design-build, and operations company specializing in water and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchGlen Allen, VA, United StatesHQ recorded Oct 11, 2026501-1,000759 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchIrvine, CA, United StatesHQ recorded Oct 11, 20261,001-5,000756 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 · Oct 11, 2026 · View company records in RevenueBase
9Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 2026201-500667 contacts →

Exact match

“Sondotécnica was founded in 1954.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchBozeman, MT, United StatesHQ recorded Oct 11, 2026201-500601 contacts →

Exact match

“In 1975, Tim Barnard moved to Montana with an idea that he could start his own construction company.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Oct 11, 2026201-500580 contacts →

Exact match

“For over 100 years, Kennedy Jenks has provided engineering and scientific solutions for innovative water and environmental projects.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 11, 20261,001-5,000322 contacts →

Exact match

“The GIS Industrial Engineering & Construction team offers clients a single point of contact to utilize our 19 strategically located facilities, employees, and 21 service lines.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchDavis, CA, United StatesHQ recorded Oct 11, 2026201-500288 contacts →

Exact match

“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 -…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchRosemont, IL, United StatesHQ recorded Oct 11, 2026201-500274 contacts →

Exact match

“Christopher B.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026201-500255 contacts →

Exact match

“Founded in 1993, Tolunay-Wong Engineers, Inc.(TWE) is ranked as one of the Top 10 largest civil engineering firms in Houston.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchJackson, MS, United StatesHQ recorded Oct 11, 2026201-500232 contacts →

Exact match

“Waggoner Engineering, Inc.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchAnkara, TürkiyeHQ recorded Oct 11, 2026201-500200 contacts →

Exact match

“TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchPittsburgh, PA, United StatesHQ recorded Oct 11, 202651-200175 contacts →

Exact match

“RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchSliedrecht, NetherlandsHQ recorded Oct 11, 202651-200159 contacts →

Exact match

“About the company: Van den Herik: hydraulic engineering in all its guises Van den Herik has been active in the field of hydraulic engineering since the 1940s.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchNîmes Cedex 5, FranceHQ recorded Oct 11, 2026501-1,000147 contacts →

Exact match

“A travers ses trois métiers principaux d’aménageur, d’ingénierie et d’exploitation de grands ouvrages hydrauliques, le Groupe BRL (5 sociétés (1), 101,79 M€ de CA, 804 salariés en…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchScottsdale, AZ, United StatesHQ recorded Oct 11, 202651-200142 contacts →

Exact match

“Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchSheboygan, WI, United StatesHQ recorded Oct 11, 202651-200137 contacts →

Exact match

“Donohue & Associates is an employee-owned, multi-disciplined engineering firm dedicated to one focus: water.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchWichita, KS, United StatesHQ recorded Oct 11, 2026201-500123 contacts →

Exact match

“For over 25 years, Wildcat Construction has been a regional leader in bridge building and rehabilitation, concrete structures, plant construction, storm and sanitary sewers, water…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchNashville, TN, United StatesHQ recorded Oct 11, 2026201-500121 contacts →

Exact match

“Barge, Waggoner, Sumner and Cannon, Inc, was rebranded on January 2, 2018, and is now Barge Design Solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 202651-200118 contacts →

Exact match

“A Dratec Engenharia Ltda.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 665 dam and levee engineering firms worldwide

See the full list, filter by size, metro and specialty, and access 15,361 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Dam and levee engineering firms worldwide at a glance

As of Oct 11, 2026
32.4%Verified-email coverage
71.4Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · Tehran
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
276
11-50
233
51-200
95
201-500
30
501-1,000
8
1,001-5,000
12
5,001-10,000
5
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for dam and levee engineering firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “dam and levee engineering 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. 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 15,361 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 October 11, 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.

Dam and levee engineering firms by location

3 lists · largest first

Every Dam and levee engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “dam and levee engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many dam and levee engineering firms are there worldwide?

RevenueBase identified 665 company matches for dam and levee engineering firms worldwide as of October 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?

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

Which country has the most dam and levee engineering firms?

The United States leads with 273 companies, followed by Brazil (33) and Germany (28). Every dam and levee engineering firms list by country and city is linked on this page.

Which city has the most dam and levee engineering firms?

Tehran leads with 15 company records, followed by Houston (13) and San Antonio (9).

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 15,361 professional contacts with verified work emails tracked across these 665 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 October 11, 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.