Company lists · Data refreshed September 2026

Top 25 Forest consulting firms based in the United States

RevenueBase identified 1,306 forest consulting firms headquartered in the United States as of September 2026 and tracks 19,511 professional contacts across them, including 9,532 with verified work emails and 8,899 with mobile numbers. Portland is the largest hub.

This list covers forest 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 3, 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 RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
1,306Companies
19,511Contacts tracked
9,532Verified emails
8,899Mobile numbers
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The 25 largest forest consulting firms based in the United States

Ranked by team size
Top 25 of 1,306 forest consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to forest 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 evidencePhoenix, AZ, United States1,001-5,0001,618 contacts →

Partial 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 3, 2026
2Partial evidenceWashington, United States1,001-5,0001,098 contacts →

Partial evidence

“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.”

Source: RevenueBase Database · checked Sep 3, 2026
3Indirect evidenceCary, NC, United States1,001-5,000822 contacts →

Indirect evidence

“At Envu, we partner with our customers to design world-class, forward-thinking innovations that protect and enhance the health of environments around the world.”

Source: RevenueBase Database · checked Sep 3, 2026
4Partial evidencePetaluma, CA, United States501-1,000725 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
5Partial evidenceSan Diego, CA, United States501-1,000483 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 3, 2026
6Partial evidenceAlbuquerque, NM, United States201-500411 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 3, 2026
7Partial evidenceKirkland, WA, United States501-1,000350 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
8Partial evidenceRoseville, CA, United States201-500331 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 3, 2026
9Partial evidenceTampa, FL, United States201-500303 contacts →

Partial 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 3, 2026
10Indirect evidenceHendersonville, NC, United States501-1,000279 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 3, 2026
11Indirect evidenceLancaster, NY, United States5,001-10,000277 contacts →

Indirect evidence

“E&E is now WSP USA.”

Source: RevenueBase Database · checked Sep 3, 2026
12Indirect evidenceWest Des Moines, IA, United States5,001-10,000237 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 3, 2026
13Indirect evidenceAiken, SC, United States201-500189 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 3, 2026
14Partial evidenceMissoula, MT, United States51-200176 contacts →

Partial evidence

“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.”

Source: RevenueBase Database · checked Sep 3, 2026
15Indirect evidenceFresno, CA, United States51-200165 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 3, 2026
16Indirect evidenceReno, NV, United States51-200157 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 3, 2026
17Partial evidenceThe Colony, TX, United States51-200149 contacts →

Partial 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 3, 2026
18Partial evidenceAlbany, GA, United States201-500139 contacts →

Partial evidence

“Since 1962, F&W Forestry Services has led the way in forestland management.”

Source: RevenueBase Database · checked Sep 3, 2026
19Partial evidenceConyers, GA, United States51-200133 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
20Partial evidenceOakland, CA, United States51-200108 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
21Partial evidenceChantilly, VA, United States201-500106 contacts →

Partial evidence

“Established in 1983, TechLaw provides environmental and management consulting services to the public sector nationwide.”

Source: RevenueBase Database · checked Sep 3, 2026
22Partial evidenceRaleigh, NC, United States51-200101 contacts →

Partial evidence

“Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.”

Source: RevenueBase Database · checked Sep 3, 2026
23Indirect evidenceCheshire, CT, United States51-20095 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
24Indirect evidenceRavenna, OH, United States51-20090 contacts →

Indirect evidence

“Environmental Solutions & Innovations, Inc.(ESI) is an employee-owned company providing clients with a one-stop shop for cultural and natural resource services, civil engineering…”

Source: RevenueBase Database · checked Sep 3, 2026
25Indirect evidenceMarietta, GA, United States51-20088 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 3, 2026

Showing 25 of 1,306 forest consulting firms based in the United States

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Forest consulting firms based in the United States at a glance

As of Sep 3, 2026
48.9%Verified-email coverage
45.6%Mobile-number coverage
14.9Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · Portland
Sep 3, 2026Page data refreshed

Companies by employee count

1-10
819
11-50
368
51-200
86
201-500
12
501-1,000
5
1,001-5,000
5
5,001-10,000
2

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 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 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 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 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, 9,532 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 3, 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 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 consulting firms are there based in the United States?

RevenueBase identified 1,306 forest 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?

Swca Environmental Consultants, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most forest consulting firms?

Portland leads with 22 headquartered companies, followed by Washington (19) and Seattle (17).

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 9,532 verified decision-maker contacts tracked across these 1,306 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 3, 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.