Company lists · Data refreshed November 2026

Top 25 Ecosystem restoration groups based in the United States

RevenueBase identified 423 company matches for ecosystem restoration groups associated with the United States as of November 2026 and tracks 5,015 professional contacts across them, including 2,370 with verified work emails. Portland is the largest hub.

This list covers company matches for ecosystem restoration groups 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
423Companies
5,015Contacts tracked
2,370Verified emails
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The 25 largest ecosystem restoration groups based in the United States

Ranked by team size
Top 25 of 423 company matches for ecosystem restoration groups 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact matchKansas City, MO, United StatesHQ recorded Nov 6, 202611-5095 contacts →

Exact match

“Bridging The Gap brings people together to protect and restore the web of life on Earth and foster inclusive, thriving communities through environmental education, innovation, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact matchColumbia, IL, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Naturion is a market leader in the wetland and stream mitigation industry providing high-quality ecological restoration for degraded ecosystems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPalmetto Bay, FL, United StatesHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“Since 1993, it has been our mission to lead efforts to restore and protect the greater Everglades ecosystem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPrinceton, MN, United StatesHQ recorded Nov 6, 202651-20057 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Natural Systems Design (NSD) is a team of scientists, engineers, and planners who are also farmers, fishermen and impassioned river people who have organized our lives to have a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCarmel, CA, United StatesHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“RANA is an award-winning ecological design company specializing in landscape architecture, environmental planning, habitat restoration, native plant propagation, and sustainable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchForest Hill, MD, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Ecotone, Inc, a Maryland corporation founded in 1998, is one of few companies that provides full delivery ecosystem restoration services including, restoration design, consulting…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLititz, PA, United StatesHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“LandStudies, a Davey Tree Company, is a design-build ecological restoration firm founded in 1989.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTomball, TX, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“EPR was created in 2012 to be a premier environmental planning and ecosystem restoration company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNorfolk, VA, United StatesHQ recorded Nov 6, 202611-5046 contacts →

Exact match

“The Elizabeth River Project is a growing non-profit organization leading the effort to restore the health of our historic urban river, while affirming her value to our region’s…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“The premier environmental restoration contractor| For over 30 years we have forged the way in sustainable, eco-friendly contracting services for utility-scale projects across the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSchaumburg, WI, United StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Tallgrass Restoration works in partnership with public, private, and corporate clients committed to restoring their landscapes, to create ecologically sustainable natural…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRuskin, FL, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Sea & Shoreline is a full-service aquatic restoration firm with experience rehabilitating both freshwater and marine ecosystems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWaukegan, IL, United StatesHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Simply stated, we aim to leave each place we visit better than we found it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCorvallis, OR, United StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“The Institute for Applied Ecology is a non-profit 501(c)(3) organization founded in with a mission to conserve native species and habitats.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTigard, OR, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“As a recognized industry leader and certified B-Corp, Ash Creek creates innovative solutions for sustainable management of natural areas, farms, forests, backyards and bioswales.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchEmmaus, PA, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Our Mission: Protect and restore critical natural areas and waterways and educate the community to create a legacy of a healthy, sustainable environment for future generations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSt. Paul, MN, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Great River Greening inspires, engages and leads local communities in conserving and caring for the land and water that enrich our lives.”

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

Showing 25 of 423 ecosystem restoration groups based in the United States

See the full list, filter by size, metro and specialty, and access 2,370 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ecosystem restoration groups based in the United States at a glance

As of Nov 6, 2026
47.3%Verified-email coverage
11.9Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · Portland
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
248
11-50
129
51-200
37
201-500
4
501-1,000
2
1,001-5,000
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 423 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 “ecosystem restoration groups” 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 2,370 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 “ecosystem restoration groups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ecosystem restoration groups are there based in the United States?

RevenueBase identified 423 company matches for ecosystem restoration groups 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?

Resource Environmental Solutions LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ecosystem restoration groups?

Portland leads with 7 company records, followed by Washington (7) and Denver (6).

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 2,370 professional contacts with verified work emails tracked across these 423 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.

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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.