Company lists · Data refreshed September 2026
Top 25 Environmental curriculum developers based in the United States
RevenueBase identified 91 environmental curriculum developers headquartered in the United States as of September 2026 and tracks 893 professional contacts across them, including 320 with verified work emails. New York is the largest hub.
This list covers environmental curriculum developers 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 19, 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.
The 25 largest environmental curriculum developers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 90 contacts → | ||||
Partial evidence “Sprout Up (formerly Environmental Education for the Next Generation) is a 501(c)(3) nonprofit organization founded by undergraduate students at the University of California, Santa…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 62 contacts → | ||||
Partial evidence “Lab-Aids develops, manufactures, and publishes curriculum and supplementary programs that help students better understand concepts through direct, relatable experiences.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 59 contacts → | ||||
Partial evidence “Nature's Classroom is a residential environmental education program located in Charlton, Massachusetts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 29 contacts → | ||||
Partial evidence “The Alice Ferguson Foundation mission is to inspire environmental stewardship by giving people the tools to understand, appreciate, and protect nature.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 25 contacts → | ||||
Partial evidence “Our Mission The Hitchcock Center for the Environment’s mission is to foster a greater awareness and understanding of our environment and to develop environmentally literate…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 22 contacts → | ||||
Partial evidence “Massachusetts leader in environmental sustainability education.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 contacts → | ||||
Indirect evidence “Connecting Kids to Nature We give students the science and tools to take action and be good stewards.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 contacts → | ||||
Partial evidence “10 Billion Strong provides local education, training, and leadership that empowers aspiring young adults and professionals to learn and take action on environmental sustainability…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 19 contacts → | ||||
Partial evidence “Explore Ecology is an environmental education nonprofit located in Santa Barbara, California.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 19 contacts → | ||||
Indirect evidence “Idori is on a mission to make sustainability a cornerstone of early childhood education.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 contacts → | ||||
Strong evidence “Roots of Success is a customizable environmental literacy and job readiness curriculum that prepares youth and adults from underserved communities 1) for opportunities in the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Partial evidence “KIDS for the BAY provides vital environmental education programs to elementary schools throughout the East San Francisco Bay Area.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Indirect evidence “What we do- Provide specialized training and professional development opportunities for students, researchers, conservation specialists, natural resource professionals, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Indirect evidence “The Swamp School is first and foremost a learning center.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Partial evidence “Northwest Environmental Training Center (NWETC) delivers tailored courses in a wide variety of topics including Policy & Regulations, Water, Biology, Technical/Software…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Partial evidence “BCK Programs creates and delivers environmental education programs at elementary, middle, and high schools that educate and empower students to make meaningful changes at their…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Partial evidence “https://linktr.ee/GreenGuardians Our mission is to provide educators and students with the 21st century climate and environmental literacy learning platform that will focus on…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Partial evidence “With the many facets of environmental remediation and the continual evolution of regulations, techniques, and technologies, environmental professionals need effective ways to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “Since 1995, Teaching Responsible Earth Education (T.R.E.E.) has provided comprehensive curriculum based, life science and earth education programs in “Outdoor Classrooms” to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “Since 1970, Earth Day has been a catalyst for ongoing education, action, and change.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Partial evidence “ROCK HOLLOW WOODS ENVIRONMENTAL LEARNING CENTER is an environmental services company based out of 615 ROCK HOLLOW RD, BIRDSBORO, Pennsylvania, United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “The Cloud Institute for Sustainability Education prepares K-12 school systems and their communities to educate for a sustainable future by inspiring educators and engaging…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “Educator Professional Development Green Space Activation for Teaching & Learning Movement Growing” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Partial evidence “FOUR WINDS NATURE INSTITUTE is a community-based environmental education (EE) organization helping children and adults gain the content knowledge and science skills needed to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: environmental curriculum developers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names environmental curriculum developers.
- Partial evidence
- Its own public description names part of environmental curriculum developers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental curriculum developers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 91 environmental curriculum developers based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 320 reachable decision-makers.
Free signup · no credit card
Environmental curriculum developers based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 91 companies.
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 environmental curriculum developers, 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 “environmental curriculum developers”. 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 environmental curriculum developers), 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 environmental curriculum developers, 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, 320 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 19, 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 environmental curriculum developers, 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 environmental curriculum developers are there based in the United States?
RevenueBase identified 91 environmental curriculum developers 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?
Sprout UP, headquartered in Palo Alto, tops this list with the largest team on record.
Which city has the most environmental curriculum developers?
New York leads with 4 headquartered companies, followed by Portland (4) and Seattle (3).
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 320 verified decision-maker contacts tracked across these 91 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 91 environmental curriculum developers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Environmental curriculum developers by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Environmental curriculum developers based in Brazil
- Environmental curriculum developers based in France
- Environmental curriculum developers based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States