Company lists · Data refreshed September 2026
Top 25 Open source software nonprofits based in the United States
RevenueBase identified 160 company matches for open source software nonprofits associated with the United States as of September 2026 and tracks 3,519 professional contacts across them, including 648 with verified work emails and 994 with mobile numbers. San Francisco is the largest hub.
This list covers company matches for open source software nonprofits 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 5, 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 source software nonprofits based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,512 contacts → | ||||
Exact match “The Apache Software Foundation (ASF) is the global home for open source software, powering some of the world’s most ubiquitous software projects including Apache Airflow, Apache…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 2 | 387 contacts → | ||||
Exact match “Meridian Cooperative, fka SEDC, is a trusted leader in the development of innovative utility software and technology solutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 3 | 130 contacts → | ||||
Exact match “Hack4Impact-UMD aims to leverage software by engaging students to promote social change.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 4 | 105 contacts → | ||||
Exact match “HeroDevs is the industry experts on “life after end-of-life” for open-source software.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 5 | 103 contacts → | ||||
Exact match “We killed software licensing fees.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 6 | 98 contacts → | ||||
Exact match “We help agencies improve lives through open software and thoughtful experiences.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 7 | 56 contacts → | ||||
Exact match “Open source is a development method for software that harnesses the power of distributed peer review and transparency of process.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 8 | 45 contacts → | ||||
Exact match “Open Solutions for Education (OS4Ed) is a provider of open solutions designed specifically to support the day to day management of schools and districts.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 9 | 32 contacts → | ||||
Exact match “PolicyEngine is a nonprofit that provides free, open source software to compute the impact of public policy.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 10 | 31 contacts → | ||||
Exact match “Meedan is a global technology nonprofit that builds software and programmatic initiatives to strengthen journalism, digital literacy, and accessibility of information online and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 11 | 23 contacts → | ||||
Exact match “The InnerSource Commons Foundation is a community of industry professions and researchers founded to promote InnerSource - the application of Open Source principles and practices…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “The Sahana Software Foundation was established as a 501(c)(3) non-profit organization to promote free and open source software solutions for disaster and emergency management.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 13 | 16 contacts → | ||||
Exact match “Equinox Open Library Initiative is a nonprofit company engaging in literary, charitable, and educational endeavors serving cultural and knowledge institutions.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 14 | 16 contacts → | ||||
Exact match “The core mission of the Apereo Foundation is to assist and facilitate educational organizations which collaborate to foster, develop, and sustain open technologies and innovation…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 15 | 15 contacts → | ||||
Exact match “DDI is a nonprofit software and technology cooperative focused on creating, supplying, and supporting innovative information management tools to partner in the missions of our…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “Welcome to Drupal4Gov, a non-profit organization dedicated to connecting and serving government employees committed to open source technology.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 17 | 12 contacts → | ||||
Exact match “Code for Science & Society ("CSS") is a 501(c)(3) nonprofit organization.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “Nonadyne Inc was founded in 2013.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “The Open Source Hardware Association (OSHWA) aims to foster technological knowledge and encourage research that is accessible, collaborative and respects user freedom.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Exaptive helps researchers and technologists working on a shared problem.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 21 | 10 contacts → | ||||
Exact match “The Open Library Foundation (the Foundation) was created in 2016 as an unbiased, independent not-for-profit organization designed to ensure the availability, accessibility and…” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “Software in the Public Interest is a non-profit organization which was founded to help organizations develop and distribute open hardware and software.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “The Spark Development Network (Spark) is an official 501(c)(3) non-profit organization that promotes collaboration, innovation and openness for church technology.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “RIghtGift is a technology company that builds free giving software for the charitable ecosystem.” Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “Free open source code you can run and adapt.” Recorded in the RevenueBase company graph · Sep 5, 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 source software 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 25 of 160 open source software nonprofits based in the United States
See the full list, filter by size, metro and specialty, and access 648 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source software nonprofits based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 source software 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 648 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 5, 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 source software nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source software nonprofits are there based in the United States?
RevenueBase identified 160 company matches for open source software nonprofits 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?
The Apache Software Foundation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source software nonprofits?
San Francisco leads with 8 company records, followed by Austin (7) and New York (7).
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 648 professional contacts with verified work emails tracked across these 160 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 160 open source software nonprofits based in the United States. Start with a free account, no credit card.
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Open source software nonprofits 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 source software nonprofits based in the United Kingdom
- Open source software nonprofits based in the Netherlands
- Open source software nonprofits based in Italy
- Open source software nonprofits based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
Company intelligence · public preview
Top 25 open source software nonprofits 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 160 matching company records for open source software nonprofits based in the United States, with 3,519 tracked contacts and 648 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 5, 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 source software nonprofits 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 |  The Apache Software Foundationapache.orgHQ: Wilmington, DE, United StatesReported employees: 5,001-10,000 | Wilmington, DE, United States | 5,001-10,000 | Exact match | 1,512 contacts → |
“The Apache Software Foundation (ASF) is the global home for open source software, powering some of the world’s most ubiquitous software projects including Apache Airflow, Apache…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Meridian Cooperativemeridian.coopHQ: Atlanta, GA, United StatesReported employees: 501-1,000 | Atlanta, GA, United States | 501-1,000 | Exact match | 387 contacts → |
“Meridian Cooperative, fka SEDC, is a trusted leader in the development of innovative utility software and technology solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Hack4impact-Umdumd.hack4impact.orgHQ: College Park, MD, United StatesReported employees: 51-200 | College Park, MD, United States | 51-200 | Exact match | 130 contacts → |
“Hack4Impact-UMD aims to leverage software by engaging students to promote social change.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Herodevsherodevs.comHQ: Sandy, UT, United StatesReported employees: 51-200 | Sandy, UT, United States | 51-200 | Exact match | 105 contacts → |
“HeroDevs is the industry experts on “life after end-of-life” for open-source software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Combined Ratio Solutionscombinedratio.comHQ: Providence, RI, United StatesReported employees: 201-500 | Providence, RI, United States | 201-500 | Exact match | 103 contacts → |
“We killed software licensing fees.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Civicactionscivicactions.comHQ: Lafayette, CA, United StatesReported employees: 51-200 | Lafayette, CA, United States | 51-200 | Exact match | 98 contacts → |
“We help agencies improve lives through open software and thoughtful experiences.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Open Source Initiative OSIopensource.orgHQ: Palo Alto, CA, United StatesReported employees: Not recorded | Palo Alto, CA, United States | Not recorded | Exact match | 56 contacts → |
“Open source is a development method for software that harnesses the power of distributed peer review and transparency of process.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Os4edos4ed.comHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 45 contacts → |
“Open Solutions for Education (OS4Ed) is a provider of open solutions designed specifically to support the day to day management of schools and districts.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Policyenginepolicyengine.orgHQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 32 contacts → |
“PolicyEngine is a nonprofit that provides free, open source software to compute the impact of public policy.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Meedanmeedan.orgHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 31 contacts → |
“Meedan is a global technology nonprofit that builds software and programmatic initiatives to strengthen journalism, digital literacy, and accessibility of information online and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Innersource Commons Foundationinnersourcecommons.orgHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 23 contacts → |
“The InnerSource Commons Foundation is a community of industry professions and researchers founded to promote InnerSource - the application of Open Source principles and practices…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Sahana Software Foundationsahanafoundation.orgHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 18 contacts → |
“The Sahana Software Foundation was established as a 501(c)(3) non-profit organization to promote free and open source software solutions for disaster and emergency management.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Equinox Open Library Initiativeequinoxoli.orgHQ: Norcross, GA, United StatesReported employees: 11-50 | Norcross, GA, United States | 11-50 | Exact match | 16 contacts → |
“Equinox Open Library Initiative is a nonprofit company engaging in literary, charitable, and educational endeavors serving cultural and knowledge institutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Apereo Foundationapereo.orgHQ: Princeton, NJ, United StatesReported employees: 11-50 | Princeton, NJ, United States | 11-50 | Exact match | 16 contacts → |
“The core mission of the Apereo Foundation is to assist and facilitate educational organizations which collaborate to foster, develop, and sustain open technologies and innovation…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Discipledata, INCddi.orgHQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 15 contacts → |
“DDI is a nonprofit software and technology cooperative focused on creating, supplying, and supporting innovative information management tools to partner in the missions of our…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Drupal4govdrupal4gov.usHQ: Chestertwon, United StatesReported employees: 11-50 | Chestertwon, United States | 11-50 | Exact match | 14 contacts → |
“Welcome to Drupal4Gov, a non-profit organization dedicated to connecting and serving government employees committed to open source technology.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Code For Science And Societycodeforscience.orgHQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 12 contacts → |
“Code for Science & Society ("CSS") is a 501(c)(3) nonprofit organization.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Nonadyne,incnonadyne.comHQ: Wixom, MI, United StatesReported employees: 1-10 | Wixom, MI, United States | 1-10 | Exact match | 12 contacts → |
“Nonadyne Inc was founded in 2013.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Open Source Hardware Associationoshwa.orgHQ: Boulder, CO, United StatesReported employees: 1-10 | Boulder, CO, United States | 1-10 | Exact match | 11 contacts → |
“The Open Source Hardware Association (OSHWA) aims to foster technological knowledge and encourage research that is accessible, collaborative and respects user freedom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Exaptive, INCexaptive.comHQ: Oklahoma City, OK, United StatesReported employees: 11-50 | Oklahoma City, OK, United States | 11-50 | Exact match | 10 contacts → |
“Exaptive helps researchers and technologists working on a shared problem.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Open Library Foundationopenlibraryfoundation.orgHQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 10 contacts → |
“The Open Library Foundation (the Foundation) was created in 2016 as an unbiased, independent not-for-profit organization designed to ensure the availability, accessibility and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Software In The Public Interest, INCspi-inc.orgHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“Software in the Public Interest is a non-profit organization which was founded to help organizations develop and distribute open hardware and software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Spark Development Networksparkdevnetwork.orgHQ: Peoria, AZ, United StatesReported employees: 1-10 | Peoria, AZ, United States | 1-10 | Exact match | 8 contacts → |
“The Spark Development Network (Spark) is an official 501(c)(3) non-profit organization that promotes collaboration, innovation and openness for church technology.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Rightgiftrightgift.comHQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 7 contacts → |
“RIghtGift is a technology company that builds free giving software for the charitable ecosystem.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Ruoom INCruoomsoftware.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 7 contacts → |
“Free open source code you can run and adapt.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 160 company matches
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Open source software nonprofits: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
160 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.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 5, 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 source software 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 open source software nonprofits did RevenueBase find based in the United States?
The saved snapshot records 160 matching company records, 3,519 tracked contacts and 648 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 5, 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 source software nonprofits by geography
Cite this list
RevenueBase Data Team. Top 25 open source software nonprofits based in the United States. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-software-nonprofits/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 source software nonprofits based in the United Kingdom
- Open source software nonprofits based in the Netherlands
- Open source software nonprofits based in Italy
- Open source software nonprofits based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
Company intelligence · public preview
Top 25 open source software nonprofits based in the United States
RevenueBase records 160 matching company records for open source software nonprofits based in the United States, with 3,519 tracked contacts and 648 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 5, 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 source software nonprofits 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 | The Apache Software Foundationapache.org HQ: Wilmington, DE, United StatesReported employees: 5,001-10,000 | Wilmington, DE, United States | 5,001-10,000 | Exact match | 1,512 contacts → |
“The Apache Software Foundation (ASF) is the global home for open source software, powering some of the world’s most ubiquitous software projects including Apache Airflow, Apache…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Meridian Cooperativemeridian.coop HQ: Atlanta, GA, United StatesReported employees: 501-1,000 | Atlanta, GA, United States | 501-1,000 | Exact match | 387 contacts → |
“Meridian Cooperative, fka SEDC, is a trusted leader in the development of innovative utility software and technology solutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Hack4impact-Umdumd.hack4impact.org HQ: College Park, MD, United StatesReported employees: 51-200 | College Park, MD, United States | 51-200 | Exact match | 130 contacts → |
“Hack4Impact-UMD aims to leverage software by engaging students to promote social change.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Herodevsherodevs.com HQ: Sandy, UT, United StatesReported employees: 51-200 | Sandy, UT, United States | 51-200 | Exact match | 105 contacts → |
“HeroDevs is the industry experts on “life after end-of-life” for open-source software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Combined Ratio Solutionscombinedratio.com HQ: Providence, RI, United StatesReported employees: 201-500 | Providence, RI, United States | 201-500 | Exact match | 103 contacts → |
“We killed software licensing fees.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Civicactionscivicactions.com HQ: Lafayette, CA, United StatesReported employees: 51-200 | Lafayette, CA, United States | 51-200 | Exact match | 98 contacts → |
“We help agencies improve lives through open software and thoughtful experiences.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Open Source Initiative OSIopensource.org HQ: Palo Alto, CA, United StatesReported employees: Not recorded | Palo Alto, CA, United States | Not recorded | Exact match | 56 contacts → |
“Open source is a development method for software that harnesses the power of distributed peer review and transparency of process.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Os4edos4ed.com HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 45 contacts → |
“Open Solutions for Education (OS4Ed) is a provider of open solutions designed specifically to support the day to day management of schools and districts.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Policyenginepolicyengine.org HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 32 contacts → |
“PolicyEngine is a nonprofit that provides free, open source software to compute the impact of public policy.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Meedanmeedan.org HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 31 contacts → |
“Meedan is a global technology nonprofit that builds software and programmatic initiatives to strengthen journalism, digital literacy, and accessibility of information online and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Innersource Commons Foundationinnersourcecommons.org HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 23 contacts → |
“The InnerSource Commons Foundation is a community of industry professions and researchers founded to promote InnerSource - the application of Open Source principles and practices…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Sahana Software Foundationsahanafoundation.org HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 18 contacts → |
“The Sahana Software Foundation was established as a 501(c)(3) non-profit organization to promote free and open source software solutions for disaster and emergency management.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Equinox Open Library Initiativeequinoxoli.org HQ: Norcross, GA, United StatesReported employees: 11-50 | Norcross, GA, United States | 11-50 | Exact match | 16 contacts → |
“Equinox Open Library Initiative is a nonprofit company engaging in literary, charitable, and educational endeavors serving cultural and knowledge institutions.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Apereo Foundationapereo.org HQ: Princeton, NJ, United StatesReported employees: 11-50 | Princeton, NJ, United States | 11-50 | Exact match | 16 contacts → |
“The core mission of the Apereo Foundation is to assist and facilitate educational organizations which collaborate to foster, develop, and sustain open technologies and innovation…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Discipledata, INCddi.org HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 15 contacts → |
“DDI is a nonprofit software and technology cooperative focused on creating, supplying, and supporting innovative information management tools to partner in the missions of our…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Drupal4govdrupal4gov.us HQ: Chestertwon, United StatesReported employees: 11-50 | Chestertwon, United States | 11-50 | Exact match | 14 contacts → |
“Welcome to Drupal4Gov, a non-profit organization dedicated to connecting and serving government employees committed to open source technology.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Code For Science And Societycodeforscience.org HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 12 contacts → |
“Code for Science & Society ("CSS") is a 501(c)(3) nonprofit organization.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nonadyne,incnonadyne.com HQ: Wixom, MI, United StatesReported employees: 1-10 | Wixom, MI, United States | 1-10 | Exact match | 12 contacts → |
“Nonadyne Inc was founded in 2013.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Open Source Hardware Associationoshwa.org HQ: Boulder, CO, United StatesReported employees: 1-10 | Boulder, CO, United States | 1-10 | Exact match | 11 contacts → |
“The Open Source Hardware Association (OSHWA) aims to foster technological knowledge and encourage research that is accessible, collaborative and respects user freedom.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Exaptive, INCexaptive.com HQ: Oklahoma City, OK, United StatesReported employees: 11-50 | Oklahoma City, OK, United States | 11-50 | Exact match | 10 contacts → |
“Exaptive helps researchers and technologists working on a shared problem.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Open Library Foundationopenlibraryfoundation.org HQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 10 contacts → |
“The Open Library Foundation (the Foundation) was created in 2016 as an unbiased, independent not-for-profit organization designed to ensure the availability, accessibility and…” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Software In The Public Interest, INCspi-inc.org HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“Software in the Public Interest is a non-profit organization which was founded to help organizations develop and distribute open hardware and software.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Spark Development Networksparkdevnetwork.org HQ: Peoria, AZ, United StatesReported employees: 1-10 | Peoria, AZ, United States | 1-10 | Exact match | 8 contacts → |
“The Spark Development Network (Spark) is an official 501(c)(3) non-profit organization that promotes collaboration, innovation and openness for church technology.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Rightgiftrightgift.com HQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 7 contacts → |
“RIghtGift is a technology company that builds free giving software for the charitable ecosystem.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ruoom INCruoomsoftware.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 7 contacts → |
“Free open source code you can run and adapt.” Recorded description excerpt · September 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 160 company matches
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Open source software nonprofits: dataset insights
September 5, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
160 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.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 5, 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 source software 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 open source software nonprofits did RevenueBase find based in the United States?
The saved snapshot records 160 matching company records, 3,519 tracked contacts and 648 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 5, 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 source software nonprofits by geography
Cite this list
RevenueBase Data Team. Top 25 open source software nonprofits based in the United States. Snapshot: September 5, 2026. https://revenuebase.ai/companies/open-source-software-nonprofits/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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