Company lists · Data refreshed September 2026

Top 25 Forest management consulting firms based in the United States

RevenueBase identified 1,414 forest management consulting firms headquartered in the United States as of September 2026 and tracks 26,200 professional contacts across them, including 12,064 with verified work emails. Seattle is the largest hub.

This list covers forest management consulting firms headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review
1,414Companies
26,200Contacts tracked
12,064Verified emails
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The 25 largest forest management consulting firms based in the United States

Ranked by team size
Top 25 of 1,414 forest management consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to forest management 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202610001+6,653 contacts →

Partial evidence

“We manage forests and manufacture products that make the world a better place.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidencePhoenix, AZ, United StatesHQ checked Sep 28, 20261,001-5,0001,629 contacts →

Strong evidence

“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000732 contacts →

Partial evidence

“ESA is a 100% employee-owned environmental consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceVentura, CA, United StatesHQ checked Sep 28, 2026501-1,000479 contacts →

Partial evidence

“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceWall Township, NJ, United StatesHQ checked Sep 28, 2026201-500447 contacts →

Indirect evidence

“We are Groundwater & Environmental Services, Inc, better known as GES.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceCheyenne, WY, United StatesHQ checked Sep 28, 2026201-500408 contacts →

Partial evidence

“WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceOmaha, NE, United StatesHQ checked Sep 28, 2026201-500351 contacts →

Partial evidence

“Employee-owned, Farmers National Company is the nation’s largest farm and management company offering landowners and investors a full line of services.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceTualatin, OR, United StatesHQ checked Sep 28, 2026501-1,000350 contacts →

Partial evidence

“AKS is a multidisciplinary consulting firm with 30+ years of experience serving municipal and private clients.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceIrvine, CA, United StatesHQ checked Sep 28, 2026201-500332 contacts →

Partial evidence

“LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceGainesville, FL, United StatesHQ checked Sep 28, 2026201-500305 contacts →

Strong evidence

“Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceHendersonville, NC, United StatesHQ checked Sep 28, 2026501-1,000282 contacts →

Indirect evidence

“ArborMetrics is a trusted advisor and collaborative partner, providing expertise and innovative solutions for environmental and construction oversight and vegetation…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceLancaster, NY, United StatesHQ checked Sep 28, 20265,001-10,000278 contacts →

Indirect evidence

“E&E is now WSP USA.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026201-500240 contacts →

Partial evidence

“Green Diamond Resource Company is a sixth-generation, family-owned forest products company.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceWest Des Moines, IA, United StatesHQ checked Sep 28, 20265,001-10,000234 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidencePittsfield, ME, United StatesHQ checked Sep 28, 2026201-500218 contacts →

Indirect evidence

“At Kleinschmidt, we work primarily with energy companies and government agencies in North America to protect and enhance the environment without compromising performance.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceBedford, NH, United StatesHQ checked Sep 28, 2026201-500189 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSan Rafael, CA, United StatesHQ checked Sep 28, 202651-200183 contacts →

Indirect evidence

“WRA is an environmental consultancy that’s making a net positive impact.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceRocklin, CA, United StatesHQ checked Sep 28, 202651-200166 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceCambridge, MA, United StatesHQ checked Sep 28, 202651-200163 contacts →

Partial evidence

“IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceTempe, AZ, United StatesHQ checked Sep 28, 202651-200160 contacts →

Indirect evidence

“Logan Simpson is a nationally recognized firm building on culture and history to co-create an inclusive, healthy, and resilient future.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 28, 202651-200152 contacts →

Partial evidence

“Founded in 1988, KERAMIDA is a multidisciplinary Sustainability, EHS & Engineering consulting firm grounded in evidence-based research and development.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceThe Colony, TX, United StatesHQ checked Sep 28, 202651-200147 contacts →

Strong evidence

“Quest Resource Management Group, a subsidiary of Quest Resource Holding Corporation (Nasdaq: QRHC), is a full-service environmental consulting and management company headquartered…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceElmhurst, IL, United StatesHQ checked Sep 28, 202651-200140 contacts →

Indirect evidence

“Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceOakhurst, CA, United StatesHQ checked Sep 28, 20261,001-5,000110 contacts →

Strong evidence

“ArborWorks provides vegetation management and wildfire hazard mitigation for utilities, highway departments, municipalities, forestry departments, and others.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200110 contacts →

Partial evidence

“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,414 forest management consulting firms based in the United States

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Forest management consulting firms based in the United States at a glance

As of Sep 28, 2026
46.0%Verified-email coverage
18.5Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · Seattle
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
894
11-50
381
51-200
100
201-500
20
501-1,000
6
1,001-5,000
4
5,001-10,000
2
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 1,414 companies.

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 forest management 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 the United States whose own description of what they do matches “forest management 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 forest management 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 forest management consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 12,064 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 28, 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.

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 forest management 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 forest management consulting firms are there based in the United States?

RevenueBase identified 1,414 forest management consulting firms headquartered in the 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?

Weyerhaeuser, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most forest management consulting firms?

Seattle leads with 22 headquartered companies, followed by Portland (18) and Sacramento (13).

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 12,064 verified decision-maker contacts tracked across these 1,414 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 28, 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.