Company lists · Data refreshed November 2026

Top 25 Ecological restoration services based in the United States

RevenueBase identified 1,108 company matches for ecological restoration services associated with the United States as of November 2026 and tracks 14,005 professional contacts across them, including 6,869 with verified work emails. Portland is the largest hub.

This list covers company matches for ecological restoration services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,108Companies
14,005Contacts tracked
6,869Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest ecological restoration services based in the United States

Ranked by team size
Top 25 of 1,108 company matches for ecological restoration services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, OR, United StatesHQ recorded Nov 6, 2026501-1,000748 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBellaire, NC, United StatesHQ recorded Nov 6, 2026501-1,000695 contacts →

Exact match

“As the nation’s largest dedicated provider of nature-based solutions, RES (Resource Environmental Solutions) is restoring a resilient earth for a modern world, project by project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchVentura, CA, United StatesHQ recorded Nov 6, 2026501-1,000509 contacts →

Exact match

“Rincon Consultants is a multidisciplinary environmental, planning, and advisory firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchReston, CA, United StatesHQ recorded Nov 6, 2026501-1,000453 contacts →

Exact match

“HydroGeoLogic, Inc.(HGL) is an employee-owned company with over 36 years of experience developing innovative, effective, and sustainable engineering and remediation solutions to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGainesville, FL, United StatesHQ recorded Nov 6, 2026201-500335 contacts →

Exact match

“ECT delivers environmental solutions for essential infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMinneapolis, CO, United StatesHQ recorded Nov 6, 2026201-500314 contacts →

Exact match

“Merjent is an environmental, restoration, and engineering consulting firm with a long history serving the energy industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSpringfield, AR, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“Environmental Works, Inc.(EWI) offers truly comprehensive environmental solutions for a variety of industries, businesses, and municipalities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSignal Hill, CA, United StatesHQ recorded Nov 6, 2026201-500234 contacts →

Exact match

“Patriot Environmental Services, a Crystal Clean company, is a leading environmental service provider with clients throughout the Southwestern United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSeattle, OR, United StatesHQ recorded Nov 6, 202651-200170 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200156 contacts →

Exact match

“Founded in 1875, American Forests is the oldest national nonprofit conservation organization in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCherry Hill, WA, United StatesHQ recorded Nov 6, 2026201-500137 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMurrieta, CA, United StatesHQ recorded Nov 6, 202611-50129 contacts →

Exact match

“Eden: People+Planet is a global 501(c)(3) nonprofit organization focused on landscape restoration and conservation through community partnerships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMillersville, MD, United StatesHQ recorded Nov 6, 2026201-500116 contacts →

Exact match

“Our mission is to be the keystone species in the restoration of the Chesapeake Bay.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMechanicsville, VA, United StatesHQ recorded Nov 6, 202611-50104 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBaltimore, OR, United StatesHQ recorded Nov 6, 202651-200103 contacts →

Exact match

“Mission: Restore The Earth And Inspire Ecological Stewardship.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchColumbia, NC, United StatesHQ recorded Nov 6, 202651-200101 contacts →

Exact match

“Straughan Environmental provides high quality & sustainable environmental planning, permitting and design services to government (federal, state, and municipal) and commercial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAtlanta, FL, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Incorporated in 1994, Edwards-Pitman Environmental, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Environmental consulting • Ecological restoration • 50+ years of service • 100% employee-owned”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchChico, CA, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“River Partners brings life back to rivers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“We do environmental work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOtsego, MN, United StatesHQ recorded Nov 6, 202651-20079 contacts →

Exact match

“Founded in 1998, MNL is an ecological restoration company with professional services ranging from prairie and stream restoration to prescribed burning and conservation grazing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLos Gatos, CA, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Since 1970, the highly-trained ecologists and professionals at H.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchJacksonville Beach, ND, United StatesHQ recorded Nov 6, 2026201-50074 contacts →

Exact match

“Earth Systems delivers world-class environmental consulting and remediation services at speed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Based in Orlando, Florida, Bio-Tech Consulting (BTC) is a full-service environmental consulting firm with clients throughout Florida and the southeast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBend, OR, United StatesHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“SummitWest is an environmental consulting company that is home to a team of dynamic, solution-oriented thinkers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,108 ecological restoration services based in the United States

See the full list, filter by size, metro and specialty, and access 6,869 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Ecological restoration services based in the United States at a glance

As of Nov 6, 2026
49.0%Verified-email coverage
12.6Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · Portland
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
659
11-50
342
51-200
82
201-500
11
501-1,000
6
1,001-5,000
3

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 1,108 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “ecological restoration services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,869 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ecological restoration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ecological restoration services are there based in the United States?

RevenueBase identified 1,108 company matches for ecological restoration services associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Environmental Science Associates tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ecological restoration services?

Portland leads with 20 company records, followed by Seattle (15) and Washington (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,869 professional contacts with verified work emails tracked across these 1,108 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,108 ecological restoration services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.