Company lists · Data refreshed September 2026

Top 25 Forest health assessment companies based in the United States

RevenueBase identified 87 forest health assessment companies headquartered in the United States as of September 2026 and tracks 627 professional contacts across them, including 291 with verified work emails. Charleston is the largest hub.

This list covers forest health assessment companies 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 20, 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 20, 2026 86% judged on-target in blind review
87Companies
627Contacts tracked
291Verified emails
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The 25 largest forest health assessment companies based in the United States

Ranked by team size
Top 25 of 87 forest health assessment companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to forest health assessment companies: 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 evidenceOakhurst, CA, United StatesHQ checked Sep 20, 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 20, 2026
2Partial evidencePortland, OR, United StatesHQ checked Sep 20, 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 20, 2026
3Strong evidencePhilomath, OR, United StatesHQ checked Sep 20, 2026201-50054 contacts →

Strong evidence

Healthy forest management is a cornerstone of professional forestry.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceMerced, CA, United StatesHQ checked Sep 20, 202611-5033 contacts →

Indirect evidence

“American Tree Medics uses cutting edge techniques to manage, maintain and assess trees for private clients, commercial and public agencies.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceYorba Linda, CA, United StatesHQ checked Sep 20, 202611-5030 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceColorado Springs, CO, United StatesHQ checked Sep 20, 202651-20029 contacts →

Indirect evidence

“Markit!”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceWeed, CA, United StatesHQ checked Sep 20, 202611-5022 contacts →

Partial evidence

“Jefferson Resource Company is one of the largest full service forestry consulting firms in California.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceBerkeley, CA, United StatesHQ checked Sep 20, 20261-1015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceWadesboro, NC, United StatesHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“At PRF, we specialize in Vegetation Consulting for utility companies across the country.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceAckerman, MS, United StatesHQ checked Sep 20, 202651-20011 contacts →

Indirect evidence

“Forrester and Associates, LLC is a contracting company that specializes in federal, state and municipal projects.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceBoise, ID, United StatesHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“Nature’s Capital, LLC provides field inventory, quantitative analysis, and technical writing services regarding ecological assessment of vegetation, plant and wildlife species…”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidenceGrass Valley, CA, United StatesHQ checked Sep 20, 20261-108 contacts →

Strong evidence

“Established in Forester’s Co-Op has been providing clientele throughout the State of California and beyond with innovative environmental assessments for the permitting of natural…”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceSummerville, SC, United StatesHQ checked Sep 20, 20261-108 contacts →

Partial evidence

“FORSight Resources, LLC, is a high-tech forestry consulting firm providing expert decision-support services to managers and executives facing critical natural resource decisions…”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceTupelo, MS, United StatesHQ checked Sep 20, 202611-507 contacts →

Partial evidence

“Fulgham Tree Preservation is a urban forestry company specializing in tree preservation.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceCenter, TX, United StatesHQ checked Sep 20, 202611-507 contacts →

Partial evidence

“Bird Forestry provides a full range of quality professional forest management services supported by the latest GIS/GPS technology and database management systems.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceRedding, CA, United StatesHQ checked Sep 20, 202611-506 contacts →

Indirect evidence

“W.M.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidencePark City, UT, United StatesHQ checked Sep 20, 202611-506 contacts →

Strong evidence

“Proudly serving Utah and the Intermountain West, Alpine Forestry provides wildfire consulting, risk assessments, defensible space planning, tree services, and large-scale land…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceBartlett, IL, United StatesHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“We're more than a tree company.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceMadison, WI, United StatesHQ checked Sep 20, 202611-505 contacts →

Partial evidence

“A scientific approach to tree health and long term care.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceSan Marcos, United StatesHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Starting in 2024, we are offering full service Tree & Plant Health Care Services!”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceHorner, WV, United StatesHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Apex Fire Preparedness is a full service forestry and home hardening contractor.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceSherwood, WA, United StatesHQ checked Sep 20, 202611-505 contacts →

Partial evidence

“A&H Forestry provides forest management services to public and private landowners across the Pacific Northwest.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceSaint Helena, CA, United StatesHQ checked Sep 20, 202611-505 contacts →

Indirect evidence

“Founded in 2001 by Curtis Fosnaugh, ISA Certified Arborist (WE-10218A), Signature Tree Solutions is dedicated to safety and excellence in tree care and vegetation management.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceHouston, TX, United StatesHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“As forest resources become increasingly scarce from the competing demands of agricultural production, conservation, development and climate change, managing them to promote forest…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 87 forest health assessment companies based in the United States

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Forest health assessment companies based in the United States at a glance

As of Sep 20, 2026
46.4%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Charleston
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
21
51-200
5
201-500
1
1,001-5,000
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 87 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 health assessment companies, 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 health assessment companies”. 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 health assessment companies), 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 health assessment companies, 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, 291 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 20, 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 health assessment companies, 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 health assessment companies are there based in the United States?

RevenueBase identified 87 forest health assessment companies 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?

Arborworks, LLC, headquartered in Oakhurst, tops this list with the largest team on record.

Which city has the most forest health assessment companies?

Charleston leads with 2 headquartered companies, followed by Grass Valley (2) and Salt Lake City (2).

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 291 verified decision-maker contacts tracked across these 87 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 20, 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.