Company lists · Data refreshed October 2026

Top 16 Fish passage engineering companies based in the United States

RevenueBase identified 28 company matches for fish passage engineering companies associated with the United States as of October 2026 and tracks 226 professional contacts across them, including 125 with verified work emails. Portland is the largest hub.

This list covers company matches for fish passage engineering companies 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
28Companies
226Contacts tracked
125Verified emails
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The 16 largest fish passage engineering companies based in the United States

Ranked by team size
Top 16 of 28 company matches for fish passage engineering companies 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 matchEast Canton, OH, United StatesHQ recorded Oct 12, 202611-5017 contacts →

Exact match

“At Worthington we are passionate about dams and our fragile environment.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchEagle, ID, United StatesHQ recorded Oct 12, 20261-1015 contacts →

Exact match

“Our team specializes in waterways, hydraulic engineering, stream processes and geomorphology, fish and wildlife habitat improvement, site/civil grading, floodplain design…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchSan Diego, CA, United StatesHQ recorded Oct 12, 20261-1014 contacts →

Exact match

“River Focus is a minority-owned small business firm specializing in FEMA map revisions, hydraulic modeling, hydrology, 2-D floodplain studies, bridge scour, streambank protection…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchSeattle, WA, United StatesHQ recorded Oct 12, 202611-5011 contacts →

Exact match

“Seattle, Washington, USA-based Whooshh™ Innovations moves live fish safely.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchFort Collins, CO, United StatesHQ recorded Oct 12, 20261-1011 contacts →

Exact match

“FlyWater is THE fishery development company for assessing, planning, designing, building, monitoring, and maintaining aquatic resources for recreational use.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchEllensburg, WA, United StatesHQ recorded Oct 12, 202611-5011 contacts →

Exact match

“LGL ESI strives to provide professional expertise in fisheries studies, with the goal of understanding and finding project solutions for our clients.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchPortland, United StatesHQ recorded Oct 12, 20261-108 contacts →

Exact match

“Northwest Watersheds LLC provides water resources engineering services to protect communities, restore habitat, and provide climate resiliency.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchHainesport, NJ, United StatesHQ recorded Oct 12, 202611-507 contacts →

Exact match

“The Castle Group is as innovative in our corporate structure as we are in our designs.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchAmbler, PA, United StatesHQ recorded Oct 12, 20261-106 contacts →

Exact match

“We are an engineering consulting company with an entrepreneurial approach to the market providing services to a variety of private and government clients.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchWhite Salmon, WA, United StatesHQ recorded Oct 12, 202611-505 contacts →

Exact match

“Parr Excellence (Parr) is a HUBZone-certified business, certified SBE, and State of Washington Micro Business Enterprise made up of twelve water resource scientists, ecologists…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchMadison, WI, United StatesHQ recorded Oct 12, 20261-105 contacts →

Exact match

“FreshWater Engineering is a woman-owned small business (EDWOSB and WOSB) in Madison, Wisconsin specializing in multi-dimensional hydrodynamic modeling, fluvial geomorphology…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchBozeman, MT, United StatesHQ recorded Oct 12, 20261-102 contacts →

Exact match

“Urbani Fisheries, LLC is a aquatic resource restoration company that specializes in river restoration, cold water fisheries enhancement, and pond/lake creation and management.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchVancouver, WA, United StatesHQ recorded Oct 12, 20261-102 contacts →

Exact match

“We have found the most effective solutions from the best suppliers to improve operations, protect the public and help the environment, while saving you time and money.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchEllensburg, WA, United StatesHQ recorded Oct 12, 202611-501 contacts →

Exact match

“Blue Leaf strives to provide professional expertise in fisheries studies, with the goal of understanding and finding project solutions for our clients.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchJacksonville, FL, United StatesHQ recorded Oct 12, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchYarmouth, ME, United StatesHQ recorded Oct 12, 20261-101 contacts →

Exact match

“FishTec collaborates with clients and regulators to achieve a practical balance between natural resource protection and economic feasibility.”

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

Showing 16 of 28 fish passage engineering companies based in the United States

See the full list, filter by size, metro and specialty, and access 125 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fish passage engineering companies based in the United States at a glance

As of Oct 12, 2026
55.3%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
10.7%Largest-city concentration · Portland
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
7
51-200
1
201-500
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 28 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 “fish passage engineering companies” 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 125 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 “fish passage engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fish passage engineering companies are there based in the United States?

RevenueBase identified 28 company matches for fish passage engineering companies 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?

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

Which city has the most fish passage engineering companies?

Portland leads with 3 company records, followed by Bellingham (2) and Bozeman (2).

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 125 professional contacts with verified work emails tracked across these 28 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.