Company lists · Data refreshed September 2026

Top 25 Forestry consultants based in the United States

RevenueBase identified 1,402 forestry consultants headquartered in the United States as of September 2026 and tracks 19,073 professional contacts across them, including 7,667 with verified work emails. Portland is the largest hub.

This list covers forestry consultants 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 21, 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 21, 2026 86% judged on-target in blind review
1,402Companies
19,073Contacts tracked
7,667Verified emails
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The 25 largest forestry consultants based in the United States

Ranked by team size
Top 25 of 1,402 forestry consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to forestry consultants: 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 21, 202610001+6,653 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 2026501-1,000732 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceTualatin, OR, United StatesHQ checked Sep 21, 2026501-1,000350 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceIrvine, CA, United StatesHQ checked Sep 21, 2026201-500332 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceCary, NC, United StatesHQ checked Sep 21, 2026n/a303 contacts →

Indirect evidence

“HMI offers a national network of ISA certified arborists, credentialed tree care professionals, and outdoor property subject matter experts to assist insurance adjusters and…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceHendersonville, NC, United StatesHQ checked Sep 21, 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 21, 2026
7Indirect evidenceWest Des Moines, IA, United StatesHQ checked Sep 21, 20265,001-10,000234 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceSan Rafael, CA, United StatesHQ checked Sep 21, 202651-200183 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceRocklin, CA, United StatesHQ checked Sep 21, 202651-200166 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceFolsom, CA, United StatesHQ checked Sep 21, 20261,001-5,000152 contacts →

Indirect evidence

“Founded in 1986 and headquartered in Folsom, CA, Mountain F.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidencePeachtree City, GA, United StatesHQ checked Sep 21, 202651-200134 contacts →

Indirect evidence

“Timber Products Inspection, Inc.(TP) is an independent, third party wood products inspection, testing and consulting company.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceSummerville, SC, United StatesHQ checked Sep 21, 202651-200133 contacts →

Partial evidence

“ArborGen is a leading global provider of conventional and next-generation tree seedling products for the forestry industry.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202651-200118 contacts →

Partial evidence

“The American Forest Foundation (AFF) is a national conservation organization that works to deliver clean water, wildlife habitat, carbon sequestration and storage, and sustainable…”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceOakhurst, CA, United StatesHQ checked Sep 21, 20261,001-5,000110 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceMechanicsville, VA, United StatesHQ checked Sep 21, 202611-50101 contacts →

Indirect evidence

“Consulting, Inc.(3e) is a dynamic and progressive certified small business that specializes in environmental studies, environmental engineering, environmental education, and…”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceSaginaw, MI, United StatesHQ checked Sep 21, 202651-20096 contacts →

Partial evidence

“We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceCentral Point, OR, United StatesHQ checked Sep 21, 202651-20081 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidencePortland, OR, United StatesHQ checked Sep 21, 202651-20077 contacts →

Partial 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 21, 2026
19Partial evidenceChico, CA, United StatesHQ checked Sep 21, 202651-20076 contacts →

Partial evidence

“Firestorm is a forestry and emergency services corporation made up of fire and land management professionals.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceLisle, IL, United StatesHQ checked Sep 21, 202651-20073 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 21, 202651-20070 contacts →

Indirect evidence

“Environmental Services, Inc.(ESI) is a leading full service environmental consulting firm with national and international experience.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceLakewood, CO, United StatesHQ checked Sep 21, 202611-5067 contacts →

Partial evidence

“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceSalt Lake City, UT, United StatesHQ checked Sep 21, 202651-20064 contacts →

Indirect evidence

“SE Group provides strategy, planning, design, and permitting consulting services focused on unique places that support outdoor recreation, rural and small-town lifestyles and…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidencePetoskey, MI, United StatesHQ checked Sep 21, 202611-5060 contacts →

Indirect evidence

“RESCOM Environmental Corp (RESCOM) is a national environmental consulting firm, providing environmental, biological and cultural resource assessment services.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 21, 202611-5059 contacts →

Indirect evidence

“Founded in 2011, Sequoia is a California-based, woman-owned, small, and disadvantaged business (WBE | SBE | DBE) that provides environmental consulting services to public agencies…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 1,402 forestry consultants based in the United States

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Forestry consultants based in the United States at a glance

As of Sep 21, 2026
40.2%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
1.1%Largest-city concentration · Portland
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
878
11-50
383
51-200
99
201-500
16
501-1,000
7
1,001-5,000
5
5,001-10,000
1
10001+
2

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 1,402 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 forestry consultants, 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 “forestry consultants”. 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 forestry consultants), 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 forestry consultants, 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, 7,667 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 21, 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 forestry consultants, 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 forestry consultants are there based in the United States?

RevenueBase identified 1,402 forestry consultants 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 forestry consultants?

Portland leads with 15 headquartered companies, followed by Seattle (13) and Washington (10).

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 7,667 verified decision-maker contacts tracked across these 1,402 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 21, 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.