Company lists · Data refreshed October 2026

Top 25 Flood mitigation engineering firms based in the United States

RevenueBase identified 543 company matches for flood mitigation engineering firms associated with the United States as of October 2026 and tracks 23,145 professional contacts across them, including 10,104 with verified work emails. Houston is the largest hub.

This list covers company matches for flood mitigation engineering 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 October 12, 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 Oct 12, 2026 How this list was built
543Companies
23,145Contacts tracked
10,104Verified emails
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The 25 largest flood mitigation engineering firms based in the United States

Ranked by team size
Top 25 of 543 company matches for flood mitigation engineering firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 12, 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 12, 2026 · View company records in RevenueBase
2Exact matchIrvine, CA, United StatesHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
3Exact matchSeattle, WA, United StatesHQ recorded Oct 12, 2026501-1,000474 contacts →

Exact match

“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchCrystal Lake, IL, United StatesHQ recorded Oct 12, 2026201-500406 contacts →

Exact match

“Founded in 1946, Baxter & Woodman, Inc.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 12, 2026201-500252 contacts →

Exact match

“The Harris County Flood Control District was established in 1937 by the Texas Legislature in response to devastating floods that reshaped our region.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchJackson, MS, United StatesHQ recorded Oct 12, 2026201-500232 contacts →

Exact match

“Waggoner Engineering, Inc.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchSt. Louis, MO, United StatesHQ recorded Oct 12, 2026201-500193 contacts →

Exact match

“Horner & Shifrin, Inc, is a full-service professional services firm with offices in: St.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchWest Sacramento, CA, United StatesHQ recorded Oct 12, 2026201-500189 contacts →

Exact match

“We are a global engineering and disaster management firm providing expert solutions to sustain industries and safeguard communities.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchGreenwood, SC, United StatesHQ recorded Oct 12, 202651-200185 contacts →

Exact match

“At Davis & Floyd, we design and engineer innovative solutions that enrich the world around us.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchScottsdale, AZ, United StatesHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
12Exact matchReno, NV, United StatesHQ recorded Oct 12, 202651-200125 contacts →

Exact match

“NCE's experience is as extensive as the need for answers to the complex issues challenging designers and policy makers of the future.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchFullerton, CA, United StatesHQ recorded Oct 12, 202611-50122 contacts →

Exact match

“CWE, an Apex Company, is a dynamic, award-winning civil engineering firm composed of engineers, scientists, designers, and construction support professionals.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchJacksonville, FL, United StatesHQ recorded Oct 12, 202651-200111 contacts →

Exact match

“Since 1987, Taylor Engineering, Inc, with headquarters in Jacksonville, Florida; branch offices in Destin and Tampa, Florida; and regional staff throughout Florida and the North…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchDillsburg, PA, United StatesHQ recorded Oct 12, 202651-200101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchNew Orleans, LA, United StatesHQ recorded Oct 12, 202651-20098 contacts →

Exact match

“The vision for Royal started with two young engineers working together in the industry with a belief they could do it better than it had been done before better for clients…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchLivermore, United StatesHQ recorded Oct 12, 202651-20091 contacts →

Exact match

“We provide excellent water and flood protection services to enhance the quality of life, economic vitality and environmental health of the communities we serve.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchConroe, TX, United StatesHQ recorded Oct 12, 202651-20089 contacts →

Exact match

“Bleyl Engineering is a Consulting Civil Engineering firm with the home office in Conroe, Texas.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchDraper, UT, United StatesHQ recorded Oct 12, 202651-20089 contacts →

Exact match

“Bowen Collins & Associates, Inc.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchFountain Valley, CA, United StatesHQ recorded Oct 12, 202651-20087 contacts →

Exact match

“PACE is a civil engineering firm offering advanced water resource services.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchWoodbury, NY, United StatesHQ recorded Oct 12, 2026201-50085 contacts →

Exact match

“Founded in 1965, D&B Engineers and Architects (D&B) is committed to improving quality of life with innovative engineering solutions in sustainable, environmentally acceptable…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchCoral Gables, FL, United StatesHQ recorded Oct 12, 202651-20085 contacts →

Exact match

“Cummins Cederberg is a leader in coastal and marine engineering, delivering solutions for some of the most complex and high-impact waterfront projects.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchCity Of Industry, CA, United StatesHQ recorded Oct 12, 202651-20078 contacts →

Exact match

“Water: It’s a human thing.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24Exact matchCentennial, CO, United StatesHQ recorded Oct 12, 202611-5070 contacts →

Exact match

“In business for over 22 years, ICON Engineering is one of Denver’s most reputable planning, design, and project management civil engineering firms.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25Exact matchSacramento, CA, United StatesHQ recorded Oct 12, 202651-20062 contacts →

Exact match

“Located in Sacramento, California, MBK Engineers (formerly Murray, Burns & Kienlen, Consulting Civil Engineers) has provided clients with complete engineering and consulting…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 543 flood mitigation engineering firms based in the United States

See the full list, filter by size, metro and specialty, and access 10,104 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Flood mitigation engineering firms based in the United States at a glance

As of Oct 12, 2026
43.7%Verified-email coverage
42.6Average contacts per company
1-10Median size (employees)
3.5%Largest-city concentration · Houston
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
287
11-50
193
51-200
46
201-500
8
501-1,000
3
1,001-5,000
4
10001+
1

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 543 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 “flood mitigation 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. 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 10,104 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 12, 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 “flood mitigation engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many flood mitigation engineering firms are there based in the United States?

RevenueBase identified 543 company matches for flood mitigation engineering firms associated with the United States 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 city has the most flood mitigation engineering firms?

Houston leads with 19 company records, followed by San Antonio (12) and Austin (8).

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 10,104 professional contacts with verified work emails tracked across these 543 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 12, 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.