Company lists · Data refreshed November 2026
Top 25 Open source llm companies worldwide
RevenueBase identified 149 company matches for open source llm companies worldwide as of November 2026 and tracks 1,365 professional contacts across them, including 343 with verified work emails. The United States is the largest market and San Francisco the largest hub.
This list covers company matches for open source llm companies worldwide, 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 6, 2026. Country and city lists for open source llm companies follow the table.
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 llm companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 191 contacts → | ||||
Exact match “Redrob -'border' in reverse - is building LLMs for the next 3 billion.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 105 contacts → | ||||
Exact match “The unified interface for LLMs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 97 contacts → | ||||
Exact match “John Snow Labs, the AI for Healthcare company, provides state-of-the-art software, language models, and data to help healthcare and life science organizations build, deploy, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 89 contacts → | ||||
Exact match “Smallest.ai is an AI research lab pioneering the future of compact, powerful models.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 62 contacts → | ||||
Exact match “Elyzamission 2018nlp llm llm llm llm llm” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 29 contacts → | ||||
Exact match “Run LLMs on your own hardware.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 24 contacts → | ||||
Exact match “We believe the future of AI will be built on specialized small language models.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 23 contacts → | ||||
Exact match “The bridge between your LLMs and the open web.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “Essential AI is on a mission to make frontier AI more accessible through an open, collaborative platform.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 17 contacts → | ||||
Exact match “Sciforium is pioneering the future of AI infrastructure and research.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 11 contacts → | ||||
Exact match “Divyam.AI’s mission is to build the most agile bridge between the producers of intelligence (hundreds of LLMs) and the consumers of intelligence (millions of LLM-powered…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 10 contacts → | ||||
Exact match “Replace LLMs with custom SLMs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 10 contacts → | ||||
Exact match “We are LLMQuant, an open-source community focusing on AI, LLM (large language model) and Quantitative research.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 9 contacts → | ||||
Exact match “We're on a mission to accelerate science by rethinking the entire research journey using AI and to put that power in the hands of every researcher.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 8 contacts → | ||||
Exact match “Agenta is an open-source workspace where teams create AI agents for engineering, customer support, sales, company knowledge, and operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “A better way to build with LLMs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Especialistas en desarrollar y ajustar grandes modelos de lenguaje basados en aprendizaje profundo para el sector privado y público utilizando técnicas de deep learning de última…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “Athina helps LLM developers prototype, experiment, evaluate and monitor production-grade AI pipelines.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “With Langtail, rest assured your LLM applications will perform exactly as needed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Okareo helps enterprises ship reliable Voice AI.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “The all in one platform to securely build LLM apps” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “The complete LLM platform with a superior developer experience and robust infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “Developer tools for large language models Checkout prompttools, tools for experimenting with and testing prompts and LLMs: https://github.com/hegelai/prompttools” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “Contract Rabbit builds bespoke natural language processors and small language models.” Recorded in the RevenueBase company graph · Nov 6, 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 llm 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 25 of 149 open source llm companies worldwide
See the full list, filter by size, metro and specialty, and access 343 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source llm companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for open source llm companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “open source llm 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. 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 343 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 6, 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.
Open source llm companies by location
1 lists · largest firstEvery Open source llm companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 llm companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source llm companies are there worldwide?
RevenueBase identified 149 company matches for open source llm companies worldwide 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?
Redrob tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most open source llm companies?
The United States leads with 44 companies. Every open source llm companies list by country and city is linked on this page.
Which city has the most open source llm companies?
San Francisco leads with 10 company records, followed by New York (8) and Bangalore (6).
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 343 professional contacts with verified work emails tracked across these 149 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 149 open source llm companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 open source llm companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 149 matching company records for open source llm companies worldwide, with 1,365 tracked contacts and 343 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: November 6, 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 llm companies worldwide
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 |  Redrobredrob.ioHQ: San Francisco, United StatesReported employees: 51-200 | San Francisco, United States | 51-200 | Exact match | 191 contacts → |
“Redrob -'border' in reverse - is building LLMs for the next 3 billion.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Openrouteropenrouter.aiHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 105 contacts → |
“The unified interface for LLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  John Snow Labsjohnsnowlabs.comHQ: Lewes, DE, United KingdomReported employees: 51-200 | Lewes, DE, United Kingdom | 51-200 | Exact match | 97 contacts → |
“John Snow Labs, the AI for Healthcare company, provides state-of-the-art software, language models, and data to help healthcare and life science organizations build, deploy, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  smallest.aismallest.aiHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 89 contacts → |
“Smallest.ai is an AI research lab pioneering the future of compact, powerful models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Elyza, INCelyza.aiHQ: 文京区, JapanReported employees: 51-200 | 文京区, Japan | 51-200 | Exact match | 62 contacts → |
“Elyzamission 2018nlp llm llm llm llm llm” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  LM Studiolmstudio.aiHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 29 contacts → |
“Run LLMs on your own hardware.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Fastino Labsfastino.aiHQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 24 contacts → |
“We believe the future of AI will be built on specialized small language models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  crawlo.comcrawlo.comHQ: Paralimni, CyprusReported employees: 11-50 | Paralimni, Cyprus | 11-50 | Exact match | 23 contacts → |
“The bridge between your LLMs and the open web.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Essential AIessential.aiHQ: San Francisco, United StatesReported employees: 11-50 | San Francisco, United States | 11-50 | Exact match | 18 contacts → |
“Essential AI is on a mission to make frontier AI more accessible through an open, collaborative platform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sciforiumsciforium.aiHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 17 contacts → |
“Sciforium is pioneering the future of AI infrastructure and research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  divyam.aidivyam.aiHQ: Bangalore, IndiaReported employees: 1-10 | Bangalore, India | 1-10 | Exact match | 11 contacts → |
“Divyam.AI’s mission is to build the most agile bridge between the producers of intelligence (hundreds of LLMs) and the consumers of intelligence (millions of LLM-powered…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Distil Labsdistillabs.aiHQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 10 contacts → |
“Replace LLMs with custom SLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Llmquantllmquant.comHQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 10 contacts → |
“We are LLMQuant, an open-source community focusing on AI, LLM (large language model) and Quantitative research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Transformer LABlab.cloudHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 9 contacts → |
“We're on a mission to accelerate science by rethinking the entire research journey using AI and to put that power in the hands of every researcher.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Agentaagenta.aiHQ: Berlin, GermanyReported employees: 1-10 | Berlin, Germany | 1-10 | Exact match | 8 contacts → |
“Agenta is an open-source workspace where teams create AI agents for engineering, customer support, sales, company knowledge, and operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Automorphicautomorphic.aiHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Freeplayfreeplay.aiHQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 7 contacts → |
“A better way to build with LLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  LHF Labslhf.aiHQ: Bizkaia, SpainReported employees: 1-10 | Bizkaia, Spain | 1-10 | Exact match | 6 contacts → |
“Especialistas en desarrollar y ajustar grandes modelos de lenguaje basados en aprendizaje profundo para el sector privado y público utilizando técnicas de deep learning de última…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Athina AI YC W23athina.aiHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 6 contacts → |
“Athina helps LLM developers prototype, experiment, evaluate and monitor production-grade AI pipelines.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Langtaillangtail.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 5 contacts → |
“With Langtail, rest assured your LLM applications will perform exactly as needed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Okareookareo.comHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 5 contacts → |
“Okareo helps enterprises ship reliable Voice AI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Salus X Labssaluslabs.aiHQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 5 contacts → |
“The all in one platform to securely build LLM apps” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Langbaselangbase.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 3 contacts → |
“The complete LLM platform with a superior developer experience and robust infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Hegel AI YC S23hegel-ai.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 2 contacts → |
“Developer tools for large language models Checkout prompttools, tools for experimenting with and testing prompts and LLMs: https://github.com/hegelai/prompttools” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Contract Rabbitcontractrabbit.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 2 contacts → |
“Contract Rabbit builds bespoke natural language processors and small language models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 149 company matches
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Open source llm companies: dataset insights
November 6, 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
149 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 149 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 6, 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 ↗
Open source llm companies by location
1 lists · largest firstEvery Open source llm companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for open source llm 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 llm companies did RevenueBase find worldwide?
The saved snapshot records 149 matching company records, 1,365 tracked contacts and 343 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: November 6, 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
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Cite this list
RevenueBase Data Team. Top 25 open source llm companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/open-source-llm-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 open source llm companies worldwide
RevenueBase records 149 matching company records for open source llm companies worldwide, with 1,365 tracked contacts and 343 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: November 6, 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 llm companies worldwide
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 | Redrobredrob.io HQ: San Francisco, United StatesReported employees: 51-200 | San Francisco, United States | 51-200 | Exact match | 191 contacts → |
“Redrob -'border' in reverse - is building LLMs for the next 3 billion.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Openrouteropenrouter.ai HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 105 contacts → |
“The unified interface for LLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | John Snow Labsjohnsnowlabs.com HQ: Lewes, DE, United KingdomReported employees: 51-200 | Lewes, DE, United Kingdom | 51-200 | Exact match | 97 contacts → |
“John Snow Labs, the AI for Healthcare company, provides state-of-the-art software, language models, and data to help healthcare and life science organizations build, deploy, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | smallest.aismallest.ai HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 89 contacts → |
“Smallest.ai is an AI research lab pioneering the future of compact, powerful models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Elyza, INCelyza.ai HQ: 文京区, JapanReported employees: 51-200 | 文京区, Japan | 51-200 | Exact match | 62 contacts → |
“Elyzamission 2018nlp llm llm llm llm llm” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | LM Studiolmstudio.ai HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 29 contacts → |
“Run LLMs on your own hardware.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Fastino Labsfastino.ai HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 24 contacts → |
“We believe the future of AI will be built on specialized small language models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | crawlo.comcrawlo.com HQ: Paralimni, CyprusReported employees: 11-50 | Paralimni, Cyprus | 11-50 | Exact match | 23 contacts → |
“The bridge between your LLMs and the open web.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Essential AIessential.ai HQ: San Francisco, United StatesReported employees: 11-50 | San Francisco, United States | 11-50 | Exact match | 18 contacts → |
“Essential AI is on a mission to make frontier AI more accessible through an open, collaborative platform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sciforiumsciforium.ai HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 17 contacts → |
“Sciforium is pioneering the future of AI infrastructure and research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | divyam.aidivyam.ai HQ: Bangalore, IndiaReported employees: 1-10 | Bangalore, India | 1-10 | Exact match | 11 contacts → |
“Divyam.AI’s mission is to build the most agile bridge between the producers of intelligence (hundreds of LLMs) and the consumers of intelligence (millions of LLM-powered…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Distil Labsdistillabs.ai HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 10 contacts → |
“Replace LLMs with custom SLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Llmquantllmquant.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 10 contacts → |
“We are LLMQuant, an open-source community focusing on AI, LLM (large language model) and Quantitative research.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Transformer LABlab.cloud HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 9 contacts → |
“We're on a mission to accelerate science by rethinking the entire research journey using AI and to put that power in the hands of every researcher.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Agentaagenta.ai HQ: Berlin, GermanyReported employees: 1-10 | Berlin, Germany | 1-10 | Exact match | 8 contacts → |
“Agenta is an open-source workspace where teams create AI agents for engineering, customer support, sales, company knowledge, and operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Automorphicautomorphic.ai HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Freeplayfreeplay.ai HQ: Boulder, CO, United StatesReported employees: 11-50 | Boulder, CO, United States | 11-50 | Exact match | 7 contacts → |
“A better way to build with LLMs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | LHF Labslhf.ai HQ: Bizkaia, SpainReported employees: 1-10 | Bizkaia, Spain | 1-10 | Exact match | 6 contacts → |
“Especialistas en desarrollar y ajustar grandes modelos de lenguaje basados en aprendizaje profundo para el sector privado y público utilizando técnicas de deep learning de última…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Athina AI YC W23athina.ai HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 6 contacts → |
“Athina helps LLM developers prototype, experiment, evaluate and monitor production-grade AI pipelines.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Langtaillangtail.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 5 contacts → |
“With Langtail, rest assured your LLM applications will perform exactly as needed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Okareookareo.com HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 5 contacts → |
“Okareo helps enterprises ship reliable Voice AI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Salus X Labssaluslabs.ai HQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 5 contacts → |
“The all in one platform to securely build LLM apps” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Langbaselangbase.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 3 contacts → |
“The complete LLM platform with a superior developer experience and robust infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Hegel AI YC S23hegel-ai.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 2 contacts → |
“Developer tools for large language models Checkout prompttools, tools for experimenting with and testing prompts and LLMs: https://github.com/hegelai/prompttools” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Contract Rabbitcontractrabbit.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 2 contacts → |
“Contract Rabbit builds bespoke natural language processors and small language models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 149 company matches
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Open source llm companies: dataset insights
November 6, 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
149 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 149 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 6, 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 ↗
Open source llm companies by location
1 lists · largest firstEvery Open source llm companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for open source llm 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 llm companies did RevenueBase find worldwide?
The saved snapshot records 149 matching company records, 1,365 tracked contacts and 343 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 25 open source llm companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/open-source-llm-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗