Company lists · Data refreshed September 2026
Top 20 Environmental nonprofits based in Houston, United States
RevenueBase identified 44 company matches for environmental nonprofits associated with Houston, United States as of September 2026 and tracks 350 professional contacts across them, including 154 with verified work emails. Across the United States, Washington is the largest hub for this category (195 companies); Houston has 44.
This list covers company matches for environmental nonprofits associated with Houston, 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 September 19, 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.
The 20 largest environmental nonprofits based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 54 contacts → | ||||
Exact match “In July of 2024, Spirit was acquired by Onterris.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 46 contacts → | ||||
Exact match “The Houston Arboretum & Nature Center is a non-profit organization with a mission to provide education about the natural environment to people of all ages and to protect and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 33 contacts → | ||||
Exact match “Buffalo Bayou Partnership creates and stewards welcoming parks, trails, and unique spaces, connecting Houstonians with our city's most significant natural waterway.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 30 contacts → | ||||
Exact match “CCA was created in 1977, after drastic commercial overfishing along the Texas coast had decimated redfish and speckled trout populations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 24 contacts → | ||||
Exact match “Air Alliance Houston is a non-profit advocacy organization working to reduce the public health impacts from air pollution and advance environmental justice.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 23 contacts → | ||||
Exact match “Houston Audubon's mission is to advance the conservation of birds and positively impact their supporting environments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 22 contacts → | ||||
Exact match “Established in 1983, Trees For Houston’s efforts initially centered on planting street trees in the heart of Houston, Texas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 11 contacts → | ||||
Exact match “The mission of Texas Health and Environment Alliance (THEA) is to protect water resources, public health, and irreplaceable resources like Galveston Bay’s precious estuary from…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 9 contacts → | ||||
Exact match “For over 55 years, we’ve been Houston's longest-running and most trusted environmental conservation nonprofit.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “The CEC is an alliance of over 100 nonprofit, governmental, and educational organizations whose work impacts our environment and quality of life in the Houston-Galveston area.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “The Coalition for Environment, Equity & Resilience (CEER) is a coalition made up of 27 nonprofit member organizations that came together after Hurricane Harvey to advance policy…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “Sustainable Environmental Solutions Company, SESCO, is based in Houston, Texas and is considered an innovator in the environmental solutions industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “A clean technology-centric ecosystem, Beam Earth provides funding for environmentally-aligned businesses and services across the investment themes of clean energy, sustainability…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “The Jacob and Terese Hershey Foundation envisions a world where people and nature live in harmony and good health.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Livelihood® is a for-impact organization restoring native habitats in Texas through tree planting initiatives funded through sustainable apparel sales, corporate partnerships, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 3 contacts → | ||||
Exact match “Allies in Energy is a nonprofit (501 c3) working in partnership to increase energy and climate literacy education and investments.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “eSPARC is a full-service environmental consulting firm that delivers expert strategies for multi-media permitting, corporate sustainability, environmental due diligence, and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “With one of the largest networks of highly experienced professionals, Terra Nova Consulting, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match “At RioRaiz, our primary focus is on the conservation of critically at-risk biodiverse hot spots.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “Keep Houston Beautiful is the city's leading organization in beautification, litter reduction and recycling education.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “environmental nonprofits”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 20 of 44 environmental nonprofits based in Houston, United States
See the full list, filter by size, metro and specialty, and access 154 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Environmental nonprofits based in Houston, United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 44 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 Houston, United States whose business descriptions match “environmental nonprofits” 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 154 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 September 19, 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.
Environmental nonprofits by metro in the United States
- Environmental nonprofits in Washington195
- Environmental nonprofits in New York194
- Environmental nonprofits in San Francisco126
- Environmental nonprofits in Los Angeles117
- Environmental nonprofits in Portland94
- Environmental nonprofits in Seattle88
- Environmental nonprofits in Atlanta67
- Environmental nonprofits in Denver66
- Environmental nonprofits in Miami58
- Environmental nonprofits in San Diego58
- Environmental nonprofits in Boston55
- Environmental nonprofits in Austin53
- Environmental nonprofits in Chicago50
- Environmental nonprofits in Oakland47
- Environmental nonprofits in Boulder42
- Environmental nonprofits in Philadelphia36
- Environmental nonprofits in Minneapolis34
- Environmental nonprofits in Sacramento29
- Environmental nonprofits in Berkeley28
- Environmental nonprofits in Pittsburgh28
- Environmental nonprofits in Richmond27
- Environmental nonprofits in Honolulu26
- Environmental nonprofits in Madison26
- Environmental nonprofits in Raleigh26
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 “environmental nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many environmental nonprofits are there based in Houston, United States?
RevenueBase identified 44 company matches for environmental nonprofits associated with Houston, United States as of September 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?
Spirit Environmental Montrose Environmental Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most environmental nonprofits?
Washington leads the United States with 195 company records, followed by New York (194) and San Francisco (126). Houston has 44.
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 154 professional contacts with verified work emails tracked across these 44 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 September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 44 environmental nonprofits based in Houston, United States. Start with a free account, no credit card.
Download this list →Related lists
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- Environmental nonprofits based in Toronto, Canada
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- Environmental nonprofits based in Ahmedabad, India
- Environmental nonprofits based in Bangalore, India
- Environmental nonprofits based in Chennai, India
- Environmental nonprofits based in Mumbai, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Environmental nonprofits based in Belo Horizonte, Brazil
- Environmental nonprofits based in Curitiba, Brazil
- Environmental nonprofits based in Rio De Janeiro, Brazil
- Environmental nonprofits based in Sao Paulo, Brazil
- Environmental nonprofits based in Montreal, Canada
- Environmental nonprofits based in Ottawa, Canada
Company intelligence · public preview
Top 20 environmental nonprofits based in Houston, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 44 matching company records for environmental nonprofits based in Houston, United States, with 350 tracked contacts and 154 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 environmental nonprofits based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 54 contacts → |
“In July of 2024, Spirit was acquired by Onterris.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Houston Arboretum & Nature Centerhoustonarboretum.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 46 contacts → |
“The Houston Arboretum & Nature Center is a non-profit organization with a mission to provide education about the natural environment to people of all ages and to protect and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Buffalo Bayou Partnershipbuffalobayou.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 33 contacts → |
“Buffalo Bayou Partnership creates and stewards welcoming parks, trails, and unique spaces, connecting Houstonians with our city's most significant natural waterway.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Coastal Conservation Associationjoincca.org HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 30 contacts → |
“CCA was created in 1977, after drastic commercial overfishing along the Texas coast had decimated redfish and speckled trout populations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  AIR Alliance Houstonairalliancehouston.orgHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 24 contacts → |
“Air Alliance Houston is a non-profit advocacy organization working to reduce the public health impacts from air pollution and advance environmental justice.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Houston Audubonhoustonaudubon.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 23 contacts → |
“Houston Audubon's mission is to advance the conservation of birds and positively impact their supporting environments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Trees For Houstontreesforhouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 22 contacts → |
“Established in 1983, Trees For Houston’s efforts initially centered on planting street trees in the heart of Houston, Texas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 11 contacts → |
“The mission of Texas Health and Environment Alliance (THEA) is to protect water resources, public health, and irreplaceable resources like Galveston Bay’s precious estuary from…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Bayou Preservationbayoupreservation.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 9 contacts → |
“For over 55 years, we’ve been Houston's longest-running and most trusted environmental conservation nonprofit.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Citizens' Environmental Coalitioncechouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“The CEC is an alliance of over 100 nonprofit, governmental, and educational organizations whose work impacts our environment and quality of life in the Houston-Galveston area.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Coalition For Environment, Equity And Resilienceceerhouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“The Coalition for Environment, Equity & Resilience (CEER) is a coalition made up of 27 nonprofit member organizations that came together after Hurricane Harvey to advance policy…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Sesco Environmentalsescoenv.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 6 contacts → |
“Sustainable Environmental Solutions Company, SESCO, is based in Houston, Texas and is considered an innovator in the environmental solutions industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Beam Earthbeam.earthHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 5 contacts → |
“A clean technology-centric ecosystem, Beam Earth provides funding for environmentally-aligned businesses and services across the investment themes of clean energy, sustainability…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | The Jacob And Terese Hershey Foundationjthershey.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 5 contacts → |
“The Jacob and Terese Hershey Foundation envisions a world where people and nature live in harmony and good health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Livelihoodlivelihood.eco HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 4 contacts → |
“Livelihood® is a for-impact organization restoring native habitats in Texas through tree planting initiatives funded through sustainable apparel sales, corporate partnerships, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Allies In Energyalliesinenergy.orgHQ: Houston, United StatesReported employees: 1-10 | Houston, United States | 1-10 | Exact match | 3 contacts → |
“Allies in Energy is a nonprofit (501 c3) working in partnership to increase energy and climate literacy education and investments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cams Esparc, LLCcamsesparc.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 2 contacts → |
“eSPARC is a full-service environmental consulting firm that delivers expert strategies for multi-media permitting, corporate sustainability, environmental due diligence, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Terra Nova Consulting, INCternov.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 2 contacts → |
“With one of the largest networks of highly experienced professionals, Terra Nova Consulting, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Rioraizrioraiz.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 1 contacts → |
“At RioRaiz, our primary focus is on the conservation of critically at-risk biodiverse hot spots.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Keep Houston Beautifulhoustonbeautiful.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 1 contacts → |
“Keep Houston Beautiful is the city's leading organization in beautification, litter reduction and recycling education.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 44 company matches
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Environmental nonprofits: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
44 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 44 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental nonprofits by metro in the United States
- Environmental nonprofits in Washington195
- Environmental nonprofits in New York194
- Environmental nonprofits in San Francisco126
- Environmental nonprofits in Los Angeles117
- Environmental nonprofits in Portland94
- Environmental nonprofits in Seattle88
- Environmental nonprofits in Atlanta67
- Environmental nonprofits in Denver66
- Environmental nonprofits in Miami58
- Environmental nonprofits in San Diego58
- Environmental nonprofits in Boston55
- Environmental nonprofits in Austin53
- Environmental nonprofits in Chicago50
- Environmental nonprofits in Oakland47
- Environmental nonprofits in Boulder42
- Environmental nonprofits in Philadelphia36
- Environmental nonprofits in Minneapolis34
- Environmental nonprofits in Sacramento29
- Environmental nonprofits in Berkeley28
- Environmental nonprofits in Pittsburgh28
- Environmental nonprofits in Richmond27
- Environmental nonprofits in Honolulu26
- Environmental nonprofits in Madison26
- Environmental nonprofits in Raleigh26
Questions about this company list
What does Exact match mean for environmental nonprofits?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental nonprofits did RevenueBase find based in Houston, United States?
The saved snapshot records 44 matching company records, 350 tracked contacts and 154 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Environmental nonprofits by geography
- Environmental nonprofits based in Belo Horizonte, Brazil
- Environmental nonprofits based in Curitiba, Brazil
- Environmental nonprofits based in Rio De Janeiro, Brazil
- Environmental nonprofits based in Sao Paulo, Brazil
- Environmental nonprofits based in Montreal, Canada
- Environmental nonprofits based in Ottawa, Canada
- Environmental nonprofits based in Toronto, Canada
- Environmental nonprofits based in Vancouver, Canada
- Environmental nonprofits based in Ahmedabad, India
- Environmental nonprofits based in Bangalore, India
- Environmental nonprofits based in Chennai, India
- Environmental nonprofits based in Mumbai, India
Cite this list
RevenueBase Data Team. Top 20 environmental nonprofits based in Houston, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/environmental-nonprofits/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Environmental nonprofits based in Belo Horizonte, Brazil
- Environmental nonprofits based in Curitiba, Brazil
- Environmental nonprofits based in Rio De Janeiro, Brazil
- Environmental nonprofits based in Sao Paulo, Brazil
- Environmental nonprofits based in Montreal, Canada
- Environmental nonprofits based in Ottawa, Canada
Company intelligence · public preview
Top 20 environmental nonprofits based in Houston, United States
RevenueBase records 44 matching company records for environmental nonprofits based in Houston, United States, with 350 tracked contacts and 154 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 environmental nonprofits based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 54 contacts → |
“In July of 2024, Spirit was acquired by Onterris.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Houston Arboretum & Nature Centerhoustonarboretum.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 46 contacts → |
“The Houston Arboretum & Nature Center is a non-profit organization with a mission to provide education about the natural environment to people of all ages and to protect and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Buffalo Bayou Partnershipbuffalobayou.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 33 contacts → |
“Buffalo Bayou Partnership creates and stewards welcoming parks, trails, and unique spaces, connecting Houstonians with our city's most significant natural waterway.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Coastal Conservation Associationjoincca.org HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 30 contacts → |
“CCA was created in 1977, after drastic commercial overfishing along the Texas coast had decimated redfish and speckled trout populations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | AIR Alliance Houstonairalliancehouston.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 24 contacts → |
“Air Alliance Houston is a non-profit advocacy organization working to reduce the public health impacts from air pollution and advance environmental justice.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Houston Audubonhoustonaudubon.org HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 23 contacts → |
“Houston Audubon's mission is to advance the conservation of birds and positively impact their supporting environments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Trees For Houstontreesforhouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 22 contacts → |
“Established in 1983, Trees For Houston’s efforts initially centered on planting street trees in the heart of Houston, Texas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 11 contacts → |
“The mission of Texas Health and Environment Alliance (THEA) is to protect water resources, public health, and irreplaceable resources like Galveston Bay’s precious estuary from…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Bayou Preservationbayoupreservation.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 9 contacts → |
“For over 55 years, we’ve been Houston's longest-running and most trusted environmental conservation nonprofit.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Citizens' Environmental Coalitioncechouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“The CEC is an alliance of over 100 nonprofit, governmental, and educational organizations whose work impacts our environment and quality of life in the Houston-Galveston area.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Coalition For Environment, Equity And Resilienceceerhouston.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“The Coalition for Environment, Equity & Resilience (CEER) is a coalition made up of 27 nonprofit member organizations that came together after Hurricane Harvey to advance policy…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Sesco Environmentalsescoenv.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 6 contacts → |
“Sustainable Environmental Solutions Company, SESCO, is based in Houston, Texas and is considered an innovator in the environmental solutions industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Beam Earthbeam.earth HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 5 contacts → |
“A clean technology-centric ecosystem, Beam Earth provides funding for environmentally-aligned businesses and services across the investment themes of clean energy, sustainability…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | The Jacob And Terese Hershey Foundationjthershey.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 5 contacts → |
“The Jacob and Terese Hershey Foundation envisions a world where people and nature live in harmony and good health.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Livelihoodlivelihood.eco HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 4 contacts → |
“Livelihood® is a for-impact organization restoring native habitats in Texas through tree planting initiatives funded through sustainable apparel sales, corporate partnerships, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Allies In Energyalliesinenergy.org HQ: Houston, United StatesReported employees: 1-10 | Houston, United States | 1-10 | Exact match | 3 contacts → |
“Allies in Energy is a nonprofit (501 c3) working in partnership to increase energy and climate literacy education and investments.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cams Esparc, LLCcamsesparc.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 2 contacts → |
“eSPARC is a full-service environmental consulting firm that delivers expert strategies for multi-media permitting, corporate sustainability, environmental due diligence, and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Terra Nova Consulting, INCternov.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 2 contacts → |
“With one of the largest networks of highly experienced professionals, Terra Nova Consulting, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Rioraizrioraiz.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 1 contacts → |
“At RioRaiz, our primary focus is on the conservation of critically at-risk biodiverse hot spots.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Keep Houston Beautifulhoustonbeautiful.org HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 1 contacts → |
“Keep Houston Beautiful is the city's leading organization in beautification, litter reduction and recycling education.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 44 company matches
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Environmental nonprofits: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
44 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 44 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental nonprofits by metro in the United States
- Environmental nonprofits in Washington195
- Environmental nonprofits in New York194
- Environmental nonprofits in San Francisco126
- Environmental nonprofits in Los Angeles117
- Environmental nonprofits in Portland94
- Environmental nonprofits in Seattle88
- Environmental nonprofits in Atlanta67
- Environmental nonprofits in Denver66
- Environmental nonprofits in Miami58
- Environmental nonprofits in San Diego58
- Environmental nonprofits in Boston55
- Environmental nonprofits in Austin53
- Environmental nonprofits in Chicago50
- Environmental nonprofits in Oakland47
- Environmental nonprofits in Boulder42
- Environmental nonprofits in Philadelphia36
- Environmental nonprofits in Minneapolis34
- Environmental nonprofits in Sacramento29
- Environmental nonprofits in Berkeley28
- Environmental nonprofits in Pittsburgh28
- Environmental nonprofits in Richmond27
- Environmental nonprofits in Honolulu26
- Environmental nonprofits in Madison26
- Environmental nonprofits in Raleigh26
Questions about this company list
What does Exact match mean for environmental nonprofits?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental nonprofits did RevenueBase find based in Houston, United States?
The saved snapshot records 44 matching company records, 350 tracked contacts and 154 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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- Environmental nonprofits based in Toronto, Canada
- Environmental nonprofits based in Vancouver, Canada
- Environmental nonprofits based in Ahmedabad, India
- Environmental nonprofits based in Bangalore, India
- Environmental nonprofits based in Chennai, India
- Environmental nonprofits based in Mumbai, India
Cite this list
RevenueBase Data Team. Top 20 environmental nonprofits based in Houston, United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/environmental-nonprofits/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Environmental nonprofits based in Belo Horizonte, Brazil
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