Company lists · Data refreshed September 2026

Top 25 Ecological consulting firms based in Portland, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 49 companies tracked

RevenueBase identified 49 ecological consulting firms headquartered in Portland, United States as of September 2026 and tracks 439 professional contacts across them, including 223 with verified work emails and 202 with mobile numbers. Houston is the largest hub.

This list covers ecological consulting firms headquartered in Portland, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 12, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 12, 2026 86% judged on-target in blind review

49Companies

439Contacts tracked

223Verified emails

202Mobile numbers

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The 25 largest ecological consulting firms based in Portland, United States

Ranked by team size

Top 25 of 49 ecological consulting firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to ecological consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Mason, Bruce & Girard, Inc. Mb&g	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	51-200	77 contacts →
	Indirect evidence “Since 1921 Mason, Bruce & Girard, Inc.(MB & G) has provided forestry, environmental, and geospatial services to public and private clients.” Source: RevenueBase Database · checked Sep 12, 2026
2	GSI Water Solutions, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	51-200	66 contacts →
	Partial evidence “GSI Water Solutions, Inc, is a specialized groundwater, environmental, and water resources consulting firm.” Source: RevenueBase Database · checked Sep 12, 2026
3	Brightworks Sustainability	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	51-200	61 contacts →
	Indirect evidence “Recognized for advanced subject matter expertise, wide-ranging technical resources, creative problem-solving, and excellence in professional practice, Brightworks Sustainability…” Source: RevenueBase Database · checked Sep 12, 2026
4	Turnstone Environmental Consultants INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	11-50	40 contacts →
	Indirect evidence “Throughout the Pacific Northwest and western United States, Turnstone Environmental Consultants is a leading provider of natural resource services to a wide range of industries…” Source: RevenueBase Database · checked Sep 12, 2026
5	FB Environmental Associates	Indirect evidence	Portland, ME, United StatesHQ checked Sep 12, 2026	11-50	28 contacts →
	Indirect evidence “Where Science Meets Civics" Our Mission: FB Environmental is dedicated to practical stewardship of our natural world.” Source: RevenueBase Database · checked Sep 12, 2026
6	Samara Group PDX	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	19 contacts →
	Indirect evidence “Samara Group LLC was founded to enhance environmental projects centered around rigorous science, inclusive partnerships, and effective communications.” Source: RevenueBase Database · checked Sep 12, 2026
7	7skyline	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	18 contacts →
	Partial evidence “7Skyline, LLC provides environmental planning, tribal liaison services, business strategy, management consulting, business development, and regulatory support for tribes and…” Source: RevenueBase Database · checked Sep 12, 2026
8	Mosaic Ecology LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	11-50	17 contacts →
	Indirect evidence “As a natural resource management firm, we provide the expertise and resources to sustainably integrate natural areas into the human environment, bring degraded land to life, and…” Source: RevenueBase Database · checked Sep 12, 2026
9	Summit Water Resources	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	12 contacts →
	Indirect evidence “Summit Water Resources has more than 100 years of combined experience in the development of municipal, agricultural, and industrial groundwater supply, aquifer storage and…” Source: RevenueBase Database · checked Sep 12, 2026
10	Evren Northwest, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026
11	Northwest Watersheds	Indirect evidence	Portland, United StatesHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “Northwest Watersheds LLC provides water resources engineering services to protect communities, restore habitat, and provide climate resiliency.” Source: RevenueBase Database · checked Sep 12, 2026
12	Aquatic Contracting	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	11-50	6 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 12, 2026
13	Environmental Management Systems, INC	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Partial evidence “Environmental Management Systems, Inc.(EMS) Is a premier environmental consulting, engineering, and design firm headquartered in the Portland Metropolitan Area of Oregon.” Source: RevenueBase Database · checked Sep 12, 2026
14	Ehns Partners	Partial evidence	Portland, ME, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Partial evidence “EHNS Partners is a small dedicated team specializing in environmental, health, and safety consulting and engineering.” Source: RevenueBase Database · checked Sep 12, 2026
15	Northwest Energy Collaborative	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Partial evidence “Northwest Energy Collaborative is a Green Building Consulting Firm that applies high performance building improvement methods and extensive construction knowledge to help…” Source: RevenueBase Database · checked Sep 12, 2026
16	EES Environmental Consulting INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Indirect evidence “EES is a unique team of professional consultants specializing in environmental assessment, investigation, and cleanup services.” Source: RevenueBase Database · checked Sep 12, 2026
17	Project Pivot	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Partial evidence “Project Pivot is a women-owned, sustainability consulting firm in Portland, Oregon.” Source: RevenueBase Database · checked Sep 12, 2026
18	QW Consulting, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	3 contacts →
	Partial evidence “At QW Consulting we provide innovative and economical solutions in response to clients’ information management, translation, systems support, and communication needs.” Source: RevenueBase Database · checked Sep 12, 2026
19	Aquarius Environmental, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	3 contacts →
	Partial evidence “Aquarius Environmental is an environmental engineering and consulting firm specializing in water related design, treatment, and compliance.” Source: RevenueBase Database · checked Sep 12, 2026
20	Lichen Land And Water INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026
21	Conservation Technix, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence “Founded in 2006, Conservation Technix assists local government and non-profit organizations in efforts to finance and conserve greenspaces through innovative solutions and dynamic…” Source: RevenueBase Database · checked Sep 12, 2026
22	Naomi Mermin Consulting	Partial evidence	Portland, ME, United StatesHQ checked Sep 12, 2026	1-10	2 contacts →
	Partial evidence “Naomi Mermin Consulting, LLC, is a woman-owned (WOSB certified) healthy housing and environmental strategy firm based in Portland, ME.” Source: RevenueBase Database · checked Sep 12, 2026
23	Integrative Economics, LLC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence “We are building a transdisciplinary team to help tackle pest and disease challenges in agriculture.” Source: RevenueBase Database · checked Sep 12, 2026
24	Noble Creek Biological Consulting, INC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026
25	Hyatt Geosciences, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 12, 2026	1-10	1 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 12, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: ecological consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names ecological consulting firms.
Partial evidence: Its own public description names part of ecological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 49 ecological consulting firms based in Portland, United States

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Ecological consulting firms based in Portland, United States at a glance

As of Sep 12, 2026

50.8%Verified-email coverage

46.0%Mobile-number coverage

9.0Average contacts per company

1-10Median size (employees)

157.1%Largest-city concentration · Houston

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1880–30

3431–60

061–90

190–180

0180+

Company record updated

Median 70.0d

00–30

21431–60

16661–90

3590–180

24180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among ecological consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Portland, United States whose own description of what they do matches “ecological consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names ecological consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among ecological consulting firms, and records with no verified work email. Companies headquartered outside Portland are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 223 across the full list. 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 12, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Ecological consulting firms by metro in the United States

Ecological consulting firms in Houston77
Ecological consulting firms in New York70
Ecological consulting firms in Portland64
Ecological consulting firms in Seattle57
Ecological consulting firms in Washington52
Ecological consulting firms in Chicago48
Ecological consulting firms in San Diego47

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names ecological consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many ecological consulting firms are there based in Portland, United States?

RevenueBase identified 49 ecological consulting firms headquartered in Portland, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mason, Bruce & Girard, Inc. Mb&g, headquartered in Portland, tops this list with the largest team on record.

Which city has the most ecological consulting firms?

Houston leads with 77 headquartered companies, followed by New York (70) and Portland (64).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 223 verified decision-maker contacts tracked across these 49 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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 Smart Search, 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.