Company lists · Data refreshed September 2026

Top 25 Environmental consulting and remediation based in Portland, United States

Name: Environmental consulting and remediation based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 60 companies tracked

RevenueBase identified 60 company matches for environmental consulting and remediation associated with Portland, United States as of September 2026 and tracks 319 professional contacts across them, including 110 with verified work emails. Across the United States, Houston is the largest hub for this category (170 companies); Portland has 60.

This list covers company matches for environmental consulting and remediation associated with Portland, 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 19, 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 19, 2026 How this list was built

60Companies

319Contacts tracked

110Verified emails

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The 25 largest environmental consulting and remediation based in Portland, United States

Ranked by team size

Top 25 of 60 company matches for environmental consulting and remediation based in Portland, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	GSI Water Solutions, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	51-200	66 contacts →
	Exact match “GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	FB Environmental Associates	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Where Science Meets Civics" Our Mission: FB Environmental is dedicated to practical stewardship of our natural world.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Samara Group PDX	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	19 contacts →
	Exact match “Samara Group LLC was founded to enhance environmental projects centered around rigorous science, inclusive partnerships, and effective communications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	RED Technologies, LLC	Exact match	Portland, CT, United StatesHQ recorded Sep 19, 2026	11-50	16 contacts →
	Exact match “RED Technologies, LLC (RED) is a privately held remediation, engineering and development contractor that provides waste transportation and disposal, environmental, and site…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Soil Solutions Environmental Services	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	16 contacts →
	Exact match “Soil Solutions Environmental Services Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	TCB Industrial Corporation	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “TCB Industrial Corporation is a 16 year leader in the environmental labor market with a reputation of providing a highly qualified and capable on-call work force with a focus on…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Evren Northwest, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Northwest Watersheds	Exact match	Portland, United StatesHQ recorded Sep 19, 2026	1-10	7 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 · Sep 19, 2026 · View company records in RevenueBase
9	Leeway Engineering Solutions, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	6 contacts →
	Exact match “Leeway Engineering Solutions (LW) provides unique solutions for water and wastewater public works service providers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Aquatic Contracting	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match “Aquatic Contracting is a full service environmental/civil construction contractor with focused and specialized expertise in restoration of fish and wildlife habitat in and around…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Environmental Management Systems, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Environmental Management Systems, Inc.(EMS) Is a premier environmental consulting, engineering, and design firm headquartered in the Portland Metropolitan Area of Oregon.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Ehns Partners	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “EHNS Partners is a small dedicated team specializing in environmental, health, and safety consulting and engineering.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Northwest Energy Collaborative	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “Northwest Energy Collaborative is a Green Building Consulting Firm that applies high performance building improvement methods and extensive construction knowledge to help…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	EES Environmental Consulting INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “EES is a unique team of professional consultants specializing in environmental assessment, investigation, and cleanup services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Aquarius Environmental, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	3 contacts →
	Exact match “Aquarius Environmental is an environmental engineering and consulting firm specializing in water related design, treatment, and compliance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Lichen Land And Water INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Naomi Mermin Consulting	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Naomi Mermin Consulting, LLC, is a woman-owned (WOSB certified) healthy housing and environmental strategy firm based in Portland, ME.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Integrative Economics, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “We are building a transdisciplinary team to help tackle pest and disease challenges in agriculture.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Noble Creek Biological Consulting, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	E-Pur	Exact match	Portland, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “E-PUR provides client-focused hydrologic, geologic, engineering, and environmental consulting services on a wide range of water resource and water supply projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Ferment Service	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	2 contacts →
	Exact match “Ferment Service provides fractional and T&M engineering consulting to CPG manufacturers, food and beverage producers, and industrial clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Hyatt Geosciences, LLC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Hyatt GeoSciences LLC (HGS) is an employee-owned consulting firm with over 20 years of experience providing client-focused geology and hydrogeology services for environmental…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Collinscea	Exact match	Portland, ME, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “CollinsCEA provides expert consulting, engineering, and advising services to utilities, government, and commercial and industrial customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Stable Environment Consulting, INC	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “EMF Inspections - Indoor Environmental & Building Consulting We improve the quality of indoor environments in homes, offices, and other buildings where we live, work and play.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Justin B. Green Consulting	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Solutions-Oriented Consultancy Providing Environment, Energy, and Government Consulting.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting and remediation”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 60 environmental consulting and remediation based in Portland, United States

See the full list, filter by size, metro and specialty, and access 110 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental consulting and remediation based in Portland, United States at a glance

As of Sep 19, 2026

34.5%Verified-email coverage

5.3Average contacts per company

1-10Median size (employees)

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 60 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 Portland, United States whose business descriptions match “environmental consulting and remediation” 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 110 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 19, 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.

Environmental consulting and remediation by metro in the United States

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 “environmental consulting and remediation”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting and remediation are there based in Portland, United States?

RevenueBase identified 60 company matches for environmental consulting and remediation associated with Portland, 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?

GSI Water Solutions, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most environmental consulting and remediation?

Houston leads the United States with 170 company records, followed by New York (89) and Denver (74). Portland has 60.

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 110 professional contacts with verified work emails tracked across these 60 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 19, 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.