Company lists · Data refreshed November 2026

Top 13 Open source software support companies based in the United States

RevenueBase identified 87 company matches for open source software support companies associated with the United States as of November 2026 and tracks 1,109 professional contacts across them, including 342 with verified work emails. San Francisco is the largest hub.

This list covers company matches for open source software support 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
87Companies
1,109Contacts tracked
342Verified emails
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The 13 largest open source software support companies based in the United States

Ranked by team size
Top 13 of 87 company matches for open source software support companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDurham, NC, United StatesHQ recorded Nov 5, 2026201-500334 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
2Exact matchSandy, UT, United StatesHQ recorded Nov 5, 202651-200115 contacts →

Exact match

“HeroDevs is the industry experts on “life after end-of-life” for open-source software.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchMiddletown, DE, United StatesHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Enterprise support for your entire stack powered by a self-hosted AI agent that runs entirely inside your perimeter, with human experts one escalation away.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Nov 5, 2026n/a19 contacts →

Exact match

“Red Hat's purpose is to be the catalyst in communities of customers, contributors, and Partners creating better technology in the Open Source Way.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchManchester, NH, United StatesHQ recorded Nov 5, 20261-1011 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
6Exact matchWixom, MI, United StatesHQ recorded Nov 5, 20261-1011 contacts →

Exact match

“Nonadyne Inc was founded in 2013.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchDetroit, United StatesHQ recorded Nov 5, 20261-105 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
8Exact matchNormal, IL, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“LJ Technical Services, LLC offers Custom Computer & Network support.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSan Antonio, TX, United StatesHQ recorded Nov 5, 20261-102 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
10Exact matchDekalb, IL, United StatesHQ recorded Nov 5, 202651-2001 contacts →

Exact match

“Rimini Street, Inc (NASDAQ: RMNI), a Russell company, is the global leader in independent, third-party enterprise software support services, serving over 4,200 clients to date.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchBoulder, CO, United StatesHQ recorded Nov 5, 20261-101 contacts →

Exact match

“Pronghorn Technology develops high performance open source software and engages in data and software consulting.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchOrmond Beach, FL, United StatesHQ recorded Nov 5, 20261-101 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
13Exact matchNashville, TN, United StatesHQ recorded Nov 5, 20261-101 contacts →

Exact match

“Welcome!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 13 of 87 open source software support companies based in the United States

See the full list, filter by size, metro and specialty, and access 342 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Open source software support companies based in the United States at a glance

As of Nov 5, 2026
30.8%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
6.9%Largest-city concentration · San Francisco
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
61
11-50
16
51-200
6
201-500
2
10001+
1

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 87 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 software support 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 342 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 software support companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many open source software support companies are there based in the United States?

RevenueBase identified 87 company matches for open source software support 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 software support companies?

San Francisco leads with 6 company records, followed by Austin (4) and Detroit (3).

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 342 professional contacts with verified work emails tracked across these 87 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.

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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.