Company lists · Data refreshed November 2026
Top 20 Open source business software companies based in the United States
RevenueBase identified 69 company matches for open source business software companies associated with the United States as of November 2026 and tracks 992 professional contacts across them, including 361 with verified work emails. Austin is the largest hub.
This list covers company matches for open source business software companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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 20 largest open source business software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 334 contacts → | ||||
Exact match “Percona is widely recognized as a world-class open source database software, support, and services company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 59 contacts → | ||||
Exact match “BCS ProSoft is a leading provider of accounting and ERP business management software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 51 contacts → | ||||
Exact match “AccountMate Software Corporation Founded in 1984, AccountMate develops and markets fully modifiable business accounting software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 32 contacts → | ||||
Exact match “Highly Agile, Customer Friendly, Worlds Best, and economical SaaS-based CRM and ERP Solution.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 30 contacts → | ||||
Exact match “Red Wing Software develops and supports accounting, payroll, and financial management software for small-to-mid-sized businesses, agribusinesses, nonprofits, and municipals across…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 21 contacts → | ||||
Exact match “Crystal Computer Consulting was founding in 1990, with the original mission to build customized business management and accounting packages for small to medium businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 13 contacts → | ||||
Exact match “General Data Systems offers ERP software specifically for the wholesale distribution industry.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 11 contacts → | ||||
Exact match “We are a small business that uses Open Source application to help other small businesses succeed on the Web.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 9 contacts → | ||||
Exact match “We specialize in the development, sales, and support of affordable, state-of-the-art business management software that works the way you do.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 8 contacts → | ||||
Exact match “SaaS solutions for small business IT, including the open source project Snipe-IT.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “Change is at the center of commerce.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “PC Ware delivers industry-leading business management software and services to help small to midsized businesses achieve maximum profitability.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “OSS Consultants is a business dedicated to helping organizations of all sizes - from the world’s largest and well-known companies to small businesses and start-ups - design…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “Invoice Ninja is a leading source-code available suite of apps focusing on SMB invoicing & payments.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 3 contacts → | ||||
Exact match “Resin is a full-service CRM and ERP platform.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “For Him Consulting is a technology and business consulting services company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “PILLARS is a cutting-edge SaaS software solution designed for direct-selling and commission-based businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “Flectra is The Open Source ERP and CRM System For Your Business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match “Foundry Bean is a cloud business management software company and provides services to manage business finances, operations, human resources and customer relations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “We're not another MSP that locks you into expensive contracts and speaks in technobabble.” Recorded in the RevenueBase company graph · Nov 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 business software companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 20 of 69 open source business software companies based in the United States
See the full list, filter by size, metro and specialty, and access 361 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source business software companies based in the United States at a glance
As of Nov 5, 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 69 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 source business software companies” 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 361 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 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 business software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source business software companies are there based in the United States?
RevenueBase identified 69 company matches for open source business software companies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Percona tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most open source business software companies?
Austin leads with 3 company records, followed by New York (3) and Dallas (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 361 professional contacts with verified work emails tracked across these 69 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 69 open source business software companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Open source business software companies by geography
- Open source business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy
- Open source business software companies based in Canada
- Open source business software companies based in the Netherlands
- Open source business software companies based in India
- Open source business software companies based in Türkiye
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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- Open source business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy
Company intelligence · public preview
Top 20 open source business software companies 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 69 matching company records for open source business software companies based in the United States, with 992 tracked contacts and 361 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 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 20 open source business software companies 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 |  Perconapercona.comHQ: Durham, NC, United StatesReported employees: 201-500 | Durham, NC, United States | 201-500 | Exact match | 334 contacts → |
“Percona is widely recognized as a world-class open source database software, support, and services company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  BCS Prosoftbcsprosoft.comHQ: San Antonio, TX, United StatesReported employees: 11-50 | San Antonio, TX, United States | 11-50 | Exact match | 59 contacts → |
“BCS ProSoft is a leading provider of accounting and ERP business management software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Accountmate Software Corporationaccountmate.comHQ: Petaluma, CA, United StatesReported employees: 11-50 | Petaluma, CA, United States | 11-50 | Exact match | 51 contacts → |
“AccountMate Software Corporation Founded in 1984, AccountMate develops and markets fully modifiable business accounting software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Onehashonehash.aiHQ: Delaware/toronto/bangalore, United StatesReported employees: 51-200 | Delaware/toronto/bangalore, United States | 51-200 | Exact match | 32 contacts → |
“Highly Agile, Customer Friendly, Worlds Best, and economical SaaS-based CRM and ERP Solution.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  RED Wing Softwareredwingsoftware.comHQ: Red Wing, MN, United StatesReported employees: 11-50 | Red Wing, MN, United States | 11-50 | Exact match | 30 contacts → |
“Red Wing Software develops and supports accounting, payroll, and financial management software for small-to-mid-sized businesses, agribusinesses, nonprofits, and municipals across…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Crystal Computer Consultingcrystalcomputer.comHQ: Janesville, WI, United StatesReported employees: 11-50 | Janesville, WI, United States | 11-50 | Exact match | 21 contacts → |
“Crystal Computer Consulting was founding in 1990, with the original mission to build customized business management and accounting packages for small to medium businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  General Data Systems, INCgen-data.comHQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 13 contacts → |
“General Data Systems offers ERP software specifically for the wholesale distribution industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  465-media.com465-media.comHQ: Manchester, NH, United StatesReported employees: 1-10 | Manchester, NH, United States | 1-10 | Exact match | 11 contacts → |
“We are a small business that uses Open Source application to help other small businesses succeed on the Web.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Kennel Connectionkennelconnection.comHQ: Moorpark, CA, United StatesReported employees: 11-50 | Moorpark, CA, United States | 11-50 | Exact match | 9 contacts → |
“We specialize in the development, sales, and support of affordable, state-of-the-art business management software that works the way you do.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Grokability, INCgrokability.comHQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 8 contacts → |
“SaaS solutions for small business IT, including the open source project Snipe-IT.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Centarrocentarro.ioHQ: Greenville, SC, United StatesReported employees: 1-10 | Greenville, SC, United States | 1-10 | Exact match | 7 contacts → |
“Change is at the center of commerce.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  PC Ware Business Solutionspcware.comHQ: Monsey, NY, United StatesReported employees: 1-10 | Monsey, NY, United States | 1-10 | Exact match | 6 contacts → |
“PC Ware delivers industry-leading business management software and services to help small to midsized businesses achieve maximum profitability.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  OSS Consultantsossconsultants.comHQ: Detroit, United StatesReported employees: 1-10 | Detroit, United States | 1-10 | Exact match | 5 contacts → |
“OSS Consultants is a business dedicated to helping organizations of all sizes - from the world’s largest and well-known companies to small businesses and start-ups - design…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Invoice Ninjainvoiceninja.comHQ: Fort Myers, FL, United StatesReported employees: 1-10 | Fort Myers, FL, United States | 1-10 | Exact match | 5 contacts → |
“Invoice Ninja is a leading source-code available suite of apps focusing on SMB invoicing & payments.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  RESINresincrm.comHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 3 contacts → |
“Resin is a full-service CRM and ERP platform.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  For HIM Consultingforhimconsulting.comHQ: San Antonio, TX, United StatesReported employees: 1-10 | San Antonio, TX, United States | 1-10 | Exact match | 2 contacts → |
“For Him Consulting is a technology and business consulting services company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Pillarspillarshub.comHQ: Draper, UT, United StatesReported employees: 1-10 | Draper, UT, United States | 1-10 | Exact match | 2 contacts → |
“PILLARS is a cutting-edge SaaS software solution designed for direct-selling and commission-based businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Flectrahqflectrahq.comHQ: Middletown, DE, United StatesReported employees: 11-50 | Middletown, DE, United States | 11-50 | Exact match | 2 contacts → |
“Flectra is The Open Source ERP and CRM System For Your Business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Foundry Bean INCfoundrybean.comHQ: San Jose, CA, United StatesReported employees: 1-10 | San Jose, CA, United States | 1-10 | Exact match | 1 contacts → |
“Foundry Bean is a cloud business management software company and provides services to manage business finances, operations, human resources and customer relations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  IT Xploritxplor.comHQ: Ormond Beach, FL, United StatesReported employees: 1-10 | Ormond Beach, FL, United States | 1-10 | Exact match | 1 contacts → |
“We're not another MSP that locks you into expensive contracts and speaks in technobabble.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 69 company matches
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Open source business software companies: dataset insights
November 5, 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
69 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 69 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: November 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 business software companies?
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 business software companies did RevenueBase find based in the United States?
The saved snapshot records 69 matching company records, 992 tracked contacts and 361 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 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 business software companies by geography
- Open source business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy
- Open source business software companies based in Canada
- Open source business software companies based in the Netherlands
- Open source business software companies based in India
- Open source business software companies based in Türkiye
Cite this list
RevenueBase Data Team. Top 20 open source business software companies based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/open-source-business-software-companies/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 business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy
Company intelligence · public preview
Top 20 open source business software companies based in the United States
RevenueBase records 69 matching company records for open source business software companies based in the United States, with 992 tracked contacts and 361 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 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 20 open source business software companies 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 | Perconapercona.com HQ: Durham, NC, United StatesReported employees: 201-500 | Durham, NC, United States | 201-500 | Exact match | 334 contacts → |
“Percona is widely recognized as a world-class open source database software, support, and services company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | BCS Prosoftbcsprosoft.com HQ: San Antonio, TX, United StatesReported employees: 11-50 | San Antonio, TX, United States | 11-50 | Exact match | 59 contacts → |
“BCS ProSoft is a leading provider of accounting and ERP business management software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Accountmate Software Corporationaccountmate.com HQ: Petaluma, CA, United StatesReported employees: 11-50 | Petaluma, CA, United States | 11-50 | Exact match | 51 contacts → |
“AccountMate Software Corporation Founded in 1984, AccountMate develops and markets fully modifiable business accounting software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Onehashonehash.ai HQ: Delaware/toronto/bangalore, United StatesReported employees: 51-200 | Delaware/toronto/bangalore, United States | 51-200 | Exact match | 32 contacts → |
“Highly Agile, Customer Friendly, Worlds Best, and economical SaaS-based CRM and ERP Solution.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | RED Wing Softwareredwingsoftware.com HQ: Red Wing, MN, United StatesReported employees: 11-50 | Red Wing, MN, United States | 11-50 | Exact match | 30 contacts → |
“Red Wing Software develops and supports accounting, payroll, and financial management software for small-to-mid-sized businesses, agribusinesses, nonprofits, and municipals across…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Crystal Computer Consultingcrystalcomputer.com HQ: Janesville, WI, United StatesReported employees: 11-50 | Janesville, WI, United States | 11-50 | Exact match | 21 contacts → |
“Crystal Computer Consulting was founding in 1990, with the original mission to build customized business management and accounting packages for small to medium businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | General Data Systems, INCgen-data.com HQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 13 contacts → |
“General Data Systems offers ERP software specifically for the wholesale distribution industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 465-media.com465-media.com HQ: Manchester, NH, United StatesReported employees: 1-10 | Manchester, NH, United States | 1-10 | Exact match | 11 contacts → |
“We are a small business that uses Open Source application to help other small businesses succeed on the Web.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Kennel Connectionkennelconnection.com HQ: Moorpark, CA, United StatesReported employees: 11-50 | Moorpark, CA, United States | 11-50 | Exact match | 9 contacts → |
“We specialize in the development, sales, and support of affordable, state-of-the-art business management software that works the way you do.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Grokability, INCgrokability.com HQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 8 contacts → |
“SaaS solutions for small business IT, including the open source project Snipe-IT.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Centarrocentarro.io HQ: Greenville, SC, United StatesReported employees: 1-10 | Greenville, SC, United States | 1-10 | Exact match | 7 contacts → |
“Change is at the center of commerce.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | PC Ware Business Solutionspcware.com HQ: Monsey, NY, United StatesReported employees: 1-10 | Monsey, NY, United States | 1-10 | Exact match | 6 contacts → |
“PC Ware delivers industry-leading business management software and services to help small to midsized businesses achieve maximum profitability.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | OSS Consultantsossconsultants.com HQ: Detroit, United StatesReported employees: 1-10 | Detroit, United States | 1-10 | Exact match | 5 contacts → |
“OSS Consultants is a business dedicated to helping organizations of all sizes - from the world’s largest and well-known companies to small businesses and start-ups - design…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Invoice Ninjainvoiceninja.com HQ: Fort Myers, FL, United StatesReported employees: 1-10 | Fort Myers, FL, United States | 1-10 | Exact match | 5 contacts → |
“Invoice Ninja is a leading source-code available suite of apps focusing on SMB invoicing & payments.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | RESINresincrm.com HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 3 contacts → |
“Resin is a full-service CRM and ERP platform.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | For HIM Consultingforhimconsulting.com HQ: San Antonio, TX, United StatesReported employees: 1-10 | San Antonio, TX, United States | 1-10 | Exact match | 2 contacts → |
“For Him Consulting is a technology and business consulting services company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Pillarspillarshub.com HQ: Draper, UT, United StatesReported employees: 1-10 | Draper, UT, United States | 1-10 | Exact match | 2 contacts → |
“PILLARS is a cutting-edge SaaS software solution designed for direct-selling and commission-based businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Flectrahqflectrahq.com HQ: Middletown, DE, United StatesReported employees: 11-50 | Middletown, DE, United States | 11-50 | Exact match | 2 contacts → |
“Flectra is The Open Source ERP and CRM System For Your Business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Foundry Bean INCfoundrybean.com HQ: San Jose, CA, United StatesReported employees: 1-10 | San Jose, CA, United States | 1-10 | Exact match | 1 contacts → |
“Foundry Bean is a cloud business management software company and provides services to manage business finances, operations, human resources and customer relations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | IT Xploritxplor.com HQ: Ormond Beach, FL, United StatesReported employees: 1-10 | Ormond Beach, FL, United States | 1-10 | Exact match | 1 contacts → |
“We're not another MSP that locks you into expensive contracts and speaks in technobabble.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Open source business software companies: dataset insights
November 5, 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
69 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 69 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: November 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 business software companies?
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 business software companies did RevenueBase find based in the United States?
The saved snapshot records 69 matching company records, 992 tracked contacts and 361 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 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 business software companies by geography
- Open source business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy
- Open source business software companies based in Canada
- Open source business software companies based in the Netherlands
- Open source business software companies based in India
- Open source business software companies based in Türkiye
Cite this list
RevenueBase Data Team. Top 20 open source business software companies based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/open-source-business-software-companies/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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- Open source business software companies based in Brazil
- Open source business software companies based in France
- Open source business software companies based in Germany
- Open source business software companies based in Spain
- Open source business software companies based in the United Kingdom
- Open source business software companies based in Italy