Company lists · Data refreshed September 2026

Top 25 Forest consulting firms based in the United States

Name: Forest consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 1,306 companies tracked

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence 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. Evidence rates how directly each company's own description names forest consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Swca Environmental ConsultantsPartial evidence	Phoenix, AZ, United States	1,001-5,000	1,618
	“Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: company website · checked Sep 3, 2026
2	Barr Engineering COPartial evidence	Washington, United States	1,001-5,000	1,098
	“Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Source: company website · checked Sep 3, 2026
3	ENVUIndirect evidence	Cary, NC, United States	1,001-5,000	822
	“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: company website · checked Sep 3, 2026
4	Environmental Science AssociatesPartial evidence	Petaluma, CA, United States	501-1,000	725
	“ESA is a 100% employee-owned environmental consulting firm.” Source: company website · checked Sep 3, 2026
5	Rincon ConsultantsPartial evidence	San Diego, CA, United States	501-1,000	483
	“Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Source: company website · checked Sep 3, 2026
6	Western Ecosystems Technology, Inc. WestPartial evidence	Albuquerque, NM, United States	201-500	411
	“WEST provides environmental and statistical consulting services and contract research nationally and internationally to industry, government, and private organizations.” Source: company website · checked Sep 3, 2026
7	AKS Engineering & ForestryPartial evidence	Kirkland, WA, United States	501-1,000	350
	“AKS is a multidisciplinary consulting firm with 30+ years of experience serving municipal and private clients.” Source: company website · checked Sep 3, 2026
8	LSAPartial evidence	Roseville, CA, United States	201-500	331
	“LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.” Source: company website · checked Sep 3, 2026
9	Environmental Consulting & Technology, Inc. ECTPartial evidence	Tampa, FL, United States	201-500	303
	“Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…” Source: company website · checked Sep 3, 2026
10	Arbormetrics Solutions, LLCIndirect evidence	Hendersonville, NC, United States	501-1,000	279
	“ArborMetrics is a trusted advisor and collaborative partner, providing expertise and innovative solutions for environmental and construction oversight and vegetation…” Source: company website · checked Sep 3, 2026
11	Ecology And Environment, INCIndirect evidence	Lancaster, NY, United States	5,001-10,000	277
	“E&E is now WSP USA.” Source: company website · checked Sep 3, 2026
12	Wright Service CorpIndirect evidence	West Des Moines, IA, United States	5,001-10,000	237
	Source: company website · checked Sep 3, 2026
13	Normandeau Associates, INCIndirect evidence	Aiken, SC, United States	201-500	189
	Source: company website · checked Sep 3, 2026
14	Herrera Environmental ConsultantsPartial evidence	Missoula, MT, United States	51-200	176
	“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Source: company website · checked Sep 3, 2026
15	Ecorp Consulting, INCIndirect evidence	Fresno, CA, United States	51-200	165
	Source: company website · checked Sep 3, 2026
16	Logan SimpsonIndirect evidence	Reno, NV, United States	51-200	157
	“Logan Simpson is a nationally recognized firm building on culture and history to co-create an inclusive, healthy, and resilient future.” Source: company website · checked Sep 3, 2026
17	Quest Resource Management Group, A Qrhc Company Nasdaq QrhcPartial evidence	The Colony, TX, United States	51-200	149
	“Quest Resource Management Group, a subsidiary of Quest Resource Holding Corporation (Nasdaq: QRHC), is a full-service environmental consulting and management company headquartered…” Source: company website · checked Sep 3, 2026
18	F&w ForestryPartial evidence	Albany, GA, United States	201-500	139
	“Since 1962, F&W Forestry Services has led the way in forestland management.” Source: company website · checked Sep 3, 2026
19	Timber Products Inspection, INCPartial evidence	Conyers, GA, United States	51-200	133
	“Timber Products Inspection, Inc.(TP) is an independent, third party wood products inspection, testing and consulting company.” Source: company website · checked Sep 3, 2026
20	Cascadia Consulting GroupPartial evidence	Oakland, CA, United States	51-200	108
	“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: company website · checked Sep 3, 2026
21	TechlawPartial evidence	Chantilly, VA, United States	201-500	106
	“Established in 1983, TechLaw provides environmental and management consulting services to the public sector nationwide.” Source: company website · checked Sep 3, 2026
22	Hart & Hickman, PCPartial evidence	Raleigh, NC, United States	51-200	101
	“Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.” Source: company website · checked Sep 3, 2026
23	AKT PeerlessIndirect evidence	Cheshire, CT, United States	51-200	95
	“We are environmental consultants and redevelopment experts who are proud to help build sustainable communities.” Source: company website · checked Sep 3, 2026
24	Environmental Solutions & Innovations, INCIndirect evidence	Ravenna, OH, United States	51-200	90
	“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: company website · checked Sep 3, 2026
25	Earthcon Consultants, INCIndirect evidence	Marietta, GA, United States	51-200	88
	Source: company website · 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

1-10Median size (employees)

PortlandLargest hub · 22 HQs

8,899Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

819

11-50

368

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 SmartSearch, 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.