Company lists · Data refreshed September 2026
Top 25 Open educational resource publishers based in the United States
RevenueBase identified 76 company matches for open educational resource publishers associated with the United States as of September 2026 and tracks 2,667 professional contacts across them, including 791 with verified work emails. New York is the largest hub.
This list covers company matches for open educational resource publishers 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 September 20, 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 25 largest open educational resource publishers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,374 contacts → | ||||
Exact match “Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan to provide "a free, world-class education for anyone, anywhere".” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 129 contacts → | ||||
Exact match “At CK-12 Foundation, we’re revolutionizing education by providing free, high-quality learning resources for students and educators globally.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 117 contacts → | ||||
Exact match “Cognella® is redefining academic publishing by creating teacher-driven, student-centric higher education course materials in print and digital formats under three imprints…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 89 contacts → | ||||
Exact match “We are a nonprofit organization founded and run by educators.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 80 contacts → | ||||
Exact match “Lumen Learning’s mission is to enable unprecedented learning for all students.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 68 contacts → | ||||
Exact match “OpenStax is on a mission to increase educational access for all.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 63 contacts → | ||||
Exact match “Great River Learning is the higher education textbook company you've been looking for: we publish for the way you want to teach.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 36 contacts → | ||||
Exact match “Skyepack works with schools, departments, and faculty members to develop custom course content, geared toward the specific learning objectives, student population, and teaching…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 33 contacts → | ||||
Exact match “Learning Equality is committed to enabling every person in the world to realize their right to a quality education.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 29 contacts → | ||||
Exact match “At Fishtank Learning, we believe that teachers and their students deserve access to the highest quality instructional materials.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 24 contacts → | ||||
Exact match “Labyrinth Learning publishes a wide range of books and e-learning tools for community colleges, technical schools and community education programs.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 24 contacts → | ||||
Exact match “The Institute for the Study of Knowledge Management in Education (ISKME), is an independent nonprofit whose mission is to improve the practice of continuous learning…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 21 contacts → | ||||
Exact match “Education transforms lives – Open Education solves education challenges.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 19 contacts → | ||||
Exact match “The LibreTexts mission is to unite students, faculty and scholars in a cooperative effort to develop an easy-to-use online platform for the construction, customization, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 17 contacts → | ||||
Exact match “LAD Custom Publishing has served the higher ed market for more than 20 years and partners with over 1,200 colleges and universities in the US and Canada.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “The NROC Project is a nonprofit technology organization collaborating with educators to solve thorny problems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 16 contacts → | ||||
Exact match “MIT OpenCourseWare (OCW), part of MIT Open Learning, is a free open educational resource that includes material from thousands of MIT courses.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match “Lived Places Publishing is led by collection editors with deep experience as researchers and teachers in their area of expertise.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “panOpen Education is a learning platform and services company empowering institutions and educators with modular digital courseware and OER.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Fully funded by the University of Vermont, an R1-designated research institution, the UVM Press uses a diamond open access model to ensure free readership, free authorship, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “CourseCard is a company intent on improving the quality and affordability of education.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “A library of community curated teaching and learning materials, free to the entire world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “Conley Smith ePublishing, LLC brings the power of electronic media to publishing.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “KnowLearning aims to advance the state of global education in the digital age.” Recorded in the RevenueBase company graph · Sep 20, 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 “open educational resource publishers”. 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 25 of 76 open educational resource publishers based in the United States
See the full list, filter by size, metro and specialty, and access 791 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open educational resource publishers based in the United States at a glance
As of Sep 20, 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 76 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 “open educational resource publishers” 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 791 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 20, 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 “open educational resource publishers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open educational resource publishers are there based in the United States?
RevenueBase identified 76 company matches for open educational resource publishers associated with the 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?
Khan Academy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open educational resource publishers?
New York leads with 6 company records, followed by Boston (3) and Baltimore (2).
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 791 professional contacts with verified work emails tracked across these 76 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 76 open educational resource publishers based in the United States. Start with a free account, no credit card.
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Open educational resource publishers 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 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
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- New lists
- Open educational resource publishers based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 open educational resource publishers based in the 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 76 matching company records for open educational resource publishers based in the United States, with 2,667 tracked contacts and 791 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 open educational resource publishers based in the 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 | Khan Academykhanacademy.org HQ: Palo Alto, CA, United StatesReported employees: Not recorded | Palo Alto, CA, United States | Not recorded | Exact match | 1,374 contacts → |
“Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan to provide "a free, world-class education for anyone, anywhere".” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ck-12 Foundationck12.org HQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 129 contacts → |
“At CK-12 Foundation, we’re revolutionizing education by providing free, high-quality learning resources for students and educators globally.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cognellacognella.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 117 contacts → |
“Cognella® is redefining academic publishing by creating teacher-driven, student-centric higher education course materials in print and digital formats under three imprints…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Global Online Academyglobalonlineacademy.orgHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 89 contacts → |
“We are a nonprofit organization founded and run by educators.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Lumen Learninglumenlearning.com HQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 80 contacts → |
“Lumen Learning’s mission is to enable unprecedented learning for all students.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Openstax, Rice Universityopenstax.org HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 68 contacts → |
“OpenStax is on a mission to increase educational access for all.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Great River Learninggreatriverlearning.com HQ: Dubuque, IA, United StatesReported employees: 11-50 | Dubuque, IA, United States | 11-50 | Exact match | 63 contacts → |
“Great River Learning is the higher education textbook company you've been looking for: we publish for the way you want to teach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Skyepack INCskyepack.comHQ: West Lafayette, IN, United StatesReported employees: 11-50 | West Lafayette, IN, United States | 11-50 | Exact match | 36 contacts → |
“Skyepack works with schools, departments, and faculty members to develop custom course content, geared toward the specific learning objectives, student population, and teaching…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Learning Equalitylearningequality.orgHQ: La Jolla, CA, United StatesReported employees: 11-50 | La Jolla, CA, United States | 11-50 | Exact match | 33 contacts → |
“Learning Equality is committed to enabling every person in the world to realize their right to a quality education.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Fishtank Learningfishtanklearning.org HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 29 contacts → |
“At Fishtank Learning, we believe that teachers and their students deserve access to the highest quality instructional materials.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Labyrinth Learninglablearning.com HQ: Berkeley, CA, United StatesReported employees: 11-50 | Berkeley, CA, United States | 11-50 | Exact match | 24 contacts → |
“Labyrinth Learning publishes a wide range of books and e-learning tools for community colleges, technical schools and community education programs.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Half Moon Bay, CA, United StatesReported employees: 11-50 | Half Moon Bay, CA, United States | 11-50 | Exact match | 24 contacts → |
“The Institute for the Study of Knowledge Management in Education (ISKME), is an independent nonprofit whose mission is to improve the practice of continuous learning…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Open Education Global Oeglobaloeglobal.org HQ: Concord, MA, United StatesReported employees: 11-50 | Concord, MA, United States | 11-50 | Exact match | 21 contacts → |
“Education transforms lives – Open Education solves education challenges.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Libretextslibretexts.org HQ: Davis, CA, United StatesReported employees: 1-10 | Davis, CA, United States | 1-10 | Exact match | 19 contacts → |
“The LibreTexts mission is to unite students, faculty and scholars in a cooperative effort to develop an easy-to-use online platform for the construction, customization, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  LAD Custom Publishingladcustompub.comHQ: Buford, GA, United StatesReported employees: 11-50 | Buford, GA, United States | 11-50 | Exact match | 17 contacts → |
“LAD Custom Publishing has served the higher ed market for more than 20 years and partners with over 1,200 colleges and universities in the US and Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Nroc Projectnroc.org HQ: Www.nroc.org, United StatesReported employees: 11-50 | Www.nroc.org, United States | 11-50 | Exact match | 17 contacts → |
“The NROC Project is a nonprofit technology organization collaborating with educators to solve thorny problems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MIT Opencoursewareocw.mit.edu HQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 16 contacts → |
“MIT OpenCourseWare (OCW), part of MIT Open Learning, is a free open educational resource that includes material from thousands of MIT courses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Lived Places Publishinglivedplacespublishing.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 14 contacts → |
“Lived Places Publishing is led by collection editors with deep experience as researchers and teachers in their area of expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Panopen Educationpanopen.comHQ: Westport, CT, United StatesReported employees: 1-10 | Westport, CT, United States | 1-10 | Exact match | 10 contacts → |
“panOpen Education is a learning platform and services company empowering institutions and educators with modular digital courseware and OER.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Purdue University Pressthepress.purdue.edu HQ: West Lafayette, IN, United StatesReported employees: 1-10 | West Lafayette, IN, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | University Of Vermont Presspress.uvm.edu HQ: Burlington, VT, United StatesReported employees: 1-10 | Burlington, VT, United States | 1-10 | Exact match | 2 contacts → |
“Fully funded by the University of Vermont, an R1-designated research institution, the UVM Press uses a diamond open access model to ensure free readership, free authorship, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Coursecard, INCcoursecard.com HQ: Wheaton, IL, United StatesReported employees: 1-10 | Wheaton, IL, United States | 1-10 | Exact match | 2 contacts → |
“CourseCard is a company intent on improving the quality and affordability of education.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Opencurriculumopencurriculum.org HQ: Mountain View, CA, United StatesReported employees: 1-10 | Mountain View, CA, United States | 1-10 | Exact match | 2 contacts → |
“A library of community curated teaching and learning materials, free to the entire world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Conley Smith Epublishing, LLC Csepubcsepub.com HQ: Cumming, GA, United StatesReported employees: 11-50 | Cumming, GA, United States | 11-50 | Exact match | 1 contacts → |
“Conley Smith ePublishing, LLC brings the power of electronic media to publishing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Knowlearningknowlearning.org HQ: Palo Alto, CA, United StatesReported employees: 1-10 | Palo Alto, CA, United States | 1-10 | Exact match | 1 contacts → |
“KnowLearning aims to advance the state of global education in the digital age.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 76 company matches
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Open educational resource publishers: dataset insights
September 20, 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
76 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 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 76 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 20, 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 ↗
Questions about this company list
What does Exact match mean for open educational resource publishers?
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 open educational resource publishers did RevenueBase find based in the United States?
The saved snapshot records 76 matching company records, 2,667 tracked contacts and 791 verified emails. The public preview displays 25 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 20, 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
Open educational resource publishers by geography
Cite this list
RevenueBase Data Team. Top 25 open educational resource publishers based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/open-educational-resource-publishers/united-states.
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
- Open educational resource publishers based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 open educational resource publishers based in the United States
RevenueBase records 76 matching company records for open educational resource publishers based in the United States, with 2,667 tracked contacts and 791 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 open educational resource publishers based in the 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 | Khan Academykhanacademy.org HQ: Palo Alto, CA, United StatesReported employees: Not recorded | Palo Alto, CA, United States | Not recorded | Exact match | 1,374 contacts → |
“Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan to provide "a free, world-class education for anyone, anywhere".” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ck-12 Foundationck12.org HQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 129 contacts → |
“At CK-12 Foundation, we’re revolutionizing education by providing free, high-quality learning resources for students and educators globally.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cognellacognella.com HQ: San Diego, CA, United StatesReported employees: 51-200 | San Diego, CA, United States | 51-200 | Exact match | 117 contacts → |
“Cognella® is redefining academic publishing by creating teacher-driven, student-centric higher education course materials in print and digital formats under three imprints…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Global Online Academyglobalonlineacademy.org HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 89 contacts → |
“We are a nonprofit organization founded and run by educators.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Lumen Learninglumenlearning.com HQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 80 contacts → |
“Lumen Learning’s mission is to enable unprecedented learning for all students.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Openstax, Rice Universityopenstax.org HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 68 contacts → |
“OpenStax is on a mission to increase educational access for all.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Great River Learninggreatriverlearning.com HQ: Dubuque, IA, United StatesReported employees: 11-50 | Dubuque, IA, United States | 11-50 | Exact match | 63 contacts → |
“Great River Learning is the higher education textbook company you've been looking for: we publish for the way you want to teach.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Skyepack INCskyepack.com HQ: West Lafayette, IN, United StatesReported employees: 11-50 | West Lafayette, IN, United States | 11-50 | Exact match | 36 contacts → |
“Skyepack works with schools, departments, and faculty members to develop custom course content, geared toward the specific learning objectives, student population, and teaching…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Learning Equalitylearningequality.org HQ: La Jolla, CA, United StatesReported employees: 11-50 | La Jolla, CA, United States | 11-50 | Exact match | 33 contacts → |
“Learning Equality is committed to enabling every person in the world to realize their right to a quality education.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Fishtank Learningfishtanklearning.org HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 29 contacts → |
“At Fishtank Learning, we believe that teachers and their students deserve access to the highest quality instructional materials.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Labyrinth Learninglablearning.com HQ: Berkeley, CA, United StatesReported employees: 11-50 | Berkeley, CA, United States | 11-50 | Exact match | 24 contacts → |
“Labyrinth Learning publishes a wide range of books and e-learning tools for community colleges, technical schools and community education programs.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Half Moon Bay, CA, United StatesReported employees: 11-50 | Half Moon Bay, CA, United States | 11-50 | Exact match | 24 contacts → |
“The Institute for the Study of Knowledge Management in Education (ISKME), is an independent nonprofit whose mission is to improve the practice of continuous learning…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Open Education Global Oeglobaloeglobal.org HQ: Concord, MA, United StatesReported employees: 11-50 | Concord, MA, United States | 11-50 | Exact match | 21 contacts → |
“Education transforms lives – Open Education solves education challenges.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Libretextslibretexts.org HQ: Davis, CA, United StatesReported employees: 1-10 | Davis, CA, United States | 1-10 | Exact match | 19 contacts → |
“The LibreTexts mission is to unite students, faculty and scholars in a cooperative effort to develop an easy-to-use online platform for the construction, customization, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | LAD Custom Publishingladcustompub.com HQ: Buford, GA, United StatesReported employees: 11-50 | Buford, GA, United States | 11-50 | Exact match | 17 contacts → |
“LAD Custom Publishing has served the higher ed market for more than 20 years and partners with over 1,200 colleges and universities in the US and Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | The Nroc Projectnroc.org HQ: Www.nroc.org, United StatesReported employees: 11-50 | Www.nroc.org, United States | 11-50 | Exact match | 17 contacts → |
“The NROC Project is a nonprofit technology organization collaborating with educators to solve thorny problems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MIT Opencoursewareocw.mit.edu HQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 16 contacts → |
“MIT OpenCourseWare (OCW), part of MIT Open Learning, is a free open educational resource that includes material from thousands of MIT courses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lived Places Publishinglivedplacespublishing.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 14 contacts → |
“Lived Places Publishing is led by collection editors with deep experience as researchers and teachers in their area of expertise.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Panopen Educationpanopen.com HQ: Westport, CT, United StatesReported employees: 1-10 | Westport, CT, United States | 1-10 | Exact match | 10 contacts → |
“panOpen Education is a learning platform and services company empowering institutions and educators with modular digital courseware and OER.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Purdue University Pressthepress.purdue.edu HQ: West Lafayette, IN, United StatesReported employees: 1-10 | West Lafayette, IN, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | University Of Vermont Presspress.uvm.edu HQ: Burlington, VT, United StatesReported employees: 1-10 | Burlington, VT, United States | 1-10 | Exact match | 2 contacts → |
“Fully funded by the University of Vermont, an R1-designated research institution, the UVM Press uses a diamond open access model to ensure free readership, free authorship, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Coursecard, INCcoursecard.com HQ: Wheaton, IL, United StatesReported employees: 1-10 | Wheaton, IL, United States | 1-10 | Exact match | 2 contacts → |
“CourseCard is a company intent on improving the quality and affordability of education.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Opencurriculumopencurriculum.org HQ: Mountain View, CA, United StatesReported employees: 1-10 | Mountain View, CA, United States | 1-10 | Exact match | 2 contacts → |
“A library of community curated teaching and learning materials, free to the entire world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Conley Smith Epublishing, LLC Csepubcsepub.com HQ: Cumming, GA, United StatesReported employees: 11-50 | Cumming, GA, United States | 11-50 | Exact match | 1 contacts → |
“Conley Smith ePublishing, LLC brings the power of electronic media to publishing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Knowlearningknowlearning.org HQ: Palo Alto, CA, United StatesReported employees: 1-10 | Palo Alto, CA, United States | 1-10 | Exact match | 1 contacts → |
“KnowLearning aims to advance the state of global education in the digital age.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 76 company matches
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Open educational resource publishers: dataset insights
September 20, 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
76 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 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 76 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 20, 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 ↗
Questions about this company list
What does Exact match mean for open educational resource publishers?
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 open educational resource publishers did RevenueBase find based in the United States?
The saved snapshot records 76 matching company records, 2,667 tracked contacts and 791 verified emails. The public preview displays 25 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 20, 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
Open educational resource publishers by geography
Cite this list
RevenueBase Data Team. Top 25 open educational resource publishers based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/open-educational-resource-publishers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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