Company lists · Data refreshed November 2026
Top 25 Large language model training companies worldwide
RevenueBase identified 208 company matches for large language model training companies worldwide as of November 2026 and tracks 7,789 professional contacts across them, including 1,009 with verified work emails. The United States is the largest market and San Francisco the largest hub.
This list covers company matches for large language model training 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 large language model training 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 large language model training companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,427 contacts → | ||||
Exact match “TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 537 contacts → | ||||
Exact match “We leverage our AI data and localization experience – gained from working with the largest AI/NLP deployments in the world – to help train and fine-tune AI and LLM apps.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 142 contacts → | ||||
Exact match “Wow AI | Powered by AIxBlock - is an.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 123 contacts → | ||||
Exact match “Established in April 2017, Crowdworks is South Korea's leading AI tech company, chosen by over 500 companies across various industries, including major domestic ICT enterprises…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 105 contacts → | ||||
Exact match “The unified interface for LLMs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 92 contacts → | ||||
Exact match “Over the past 20 years, we’ve served over 450 clients, including Fortune 500 companies and the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 72 contacts → | ||||
Exact match “Datasaur builds and deploys Private AI for organizations that can't send their data to someone else's cloud, banks, hospitals, government agencies, and enterprises handling…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 47 contacts → | ||||
Exact match “We build custom AI & LLM-based software We help startups, scaleups, and tech companies to drive ROI by hyper-personalization, hyper-automation, and enhanced decision-making…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 42 contacts → | ||||
Exact match “World-class performance per parameter language models, from IoT to the data center.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 33 contacts → | ||||
Exact match “DataRoot Labs is a full-cycle AI R&D center and the largest talent & compute pool in Ukraine.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 17 contacts → | ||||
Exact match “Estidama is a cutting-edge technology firm at the forefront of the artificial intelligence revolution.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “Neon.ai is a trailblazer in the field of human-AI collaboration through our unique, private, and innovative conversational AI technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 14 contacts → | ||||
Exact match “AI Makerspace offers the industry-standard AI FDE Engineering Certification and enterprise AI programs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 13 contacts → | ||||
Exact match “Evaluation for LLM-Based Apps Release high-quality LLM apps quickly without compromising on testing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 12 contacts → | ||||
Exact match “Custom.MT is a machine translation training and implementation company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 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 | |||||
| 19 | 11 contacts → | ||||
Exact match “DeepMask provides a full-stack platform to build, deploy and run LLMs, internal knowledgebase RAG pipelines and fine-tuning of LLMs with full sovereignty and security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Replace LLMs with custom SLMs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Generate, annotate, clean and enrich datasets for all your AI needs with Refuel's LLM-powered platform.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “Accelerate your business with state-of-the-art large language models that integrate your knowledge.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 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 | |||||
| 25 | 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 | |||||
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 “large language model training 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 208 large language model training companies worldwide
See the full list, filter by size, metro and specialty, and access 1,009 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Large language model training 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 large language model training companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “large language model training 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 1,009 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.
Large language model training companies by location
1 lists · largest firstEvery Large language model training 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 “large language model training companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many large language model training companies are there worldwide?
RevenueBase identified 208 company matches for large language model training 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?
Telus Digital AI Data Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most large language model training companies?
The United States leads with 44 companies. Every large language model training companies list by country and city is linked on this page.
Which city has the most large language model training companies?
San Francisco leads with 9 company records, followed by New York (6) and Bangalore (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 1,009 professional contacts with verified work emails tracked across these 208 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 208 large language model training companies worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 large language model training 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 208 matching company records for large language model training companies worldwide, with 7,789 tracked contacts and 1,009 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 large language model training 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 |  Telus Digital AI Data Solutionstelusdigital.comHQ: Las Vegas, NV, United StatesReported employees: 10001+ | Las Vegas, NV, United States | 10001+ | Exact match | 5,427 contacts → |
“TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  E2f, INCe2f.comHQ: Los Altos, CA, United StatesReported employees: 51-200 | Los Altos, CA, United States | 51-200 | Exact match | 537 contacts → |
“We leverage our AI data and localization experience – gained from working with the largest AI/NLP deployments in the world – to help train and fine-tune AI and LLM apps.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  WOW AIaixblock.ioHQ: Newark, DE, United StatesReported employees: 201-500 | Newark, DE, United States | 201-500 | Exact match | 142 contacts → |
“Wow AI | Powered by AIxBlock - is an.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Crowdworks AIcrowdworks.aiHQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 123 contacts → |
“Established in April 2017, Crowdworks is South Korea's leading AI tech company, chosen by over 500 companies across various industries, including major domestic ICT enterprises…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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. | |||||
| 7 |  MLG Internationalmlginternational.comHQ: Miami, United StatesReported employees: 11-50 | Miami, United States | 11-50 | Exact match | 92 contacts → |
“Over the past 20 years, we’ve served over 450 clients, including Fortune 500 companies and the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Datasaurdatasaur.aiHQ: San Francisco Bay, CA, United StatesReported employees: 51-200 | San Francisco Bay, CA, United States | 51-200 | Exact match | 72 contacts → |
“Datasaur builds and deploys Private AI for organizations that can't send their data to someone else's cloud, banks, hospitals, government agencies, and enterprises handling…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Vstormvstorm.coHQ: Wrocław, PolandReported employees: 11-50 | Wrocław, Poland | 11-50 | Exact match | 47 contacts → |
“We build custom AI & LLM-based software We help startups, scaleups, and tech companies to drive ROI by hyper-personalization, hyper-automation, and enhanced decision-making…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Arcee AIarcee.aiHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 42 contacts → |
“World-class performance per parameter language models, from IoT to the data center.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Dataroot Labsdatarootlabs.comHQ: Kyiv, UkraineReported employees: 11-50 | Kyiv, Ukraine | 11-50 | Exact match | 33 contacts → |
“DataRoot Labs is a full-cycle AI R&D center and the largest talent & compute pool in Ukraine.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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. | |||||
| 13 |  Estidama UAEestidama.aiHQ: Abu Dhabi, United Arab EmiratesReported employees: 11-50 | Abu Dhabi, United Arab Emirates | 11-50 | Exact match | 17 contacts → |
“Estidama is a cutting-edge technology firm at the forefront of the artificial intelligence revolution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  neon.aineon.aiHQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 15 contacts → |
“Neon.ai is a trailblazer in the field of human-AI collaboration through our unique, private, and innovative conversational AI technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  AI Makerspaceaimakerspace.ioHQ: Columbus, OH, United StatesReported employees: 1-10 | Columbus, OH, United States | 1-10 | Exact match | 14 contacts → |
“AI Makerspace offers the industry-standard AI FDE Engineering Certification and enterprise AI programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Deepchecks NOW Check Pointdeepchecks.comHQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 13 contacts → |
“Evaluation for LLM-Based Apps Release high-quality LLM apps quickly without compromising on testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  custom.mtcustom.mtHQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Custom.MT is a machine translation training and implementation company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  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. | |||||
| 19 |  Deepmaskdeepmask.ioHQ: Munich, GermanyReported employees: 1-10 | Munich, Germany | 1-10 | Exact match | 11 contacts → |
“DeepMask provides a full-stack platform to build, deploy and run LLMs, internal knowledgebase RAG pipelines and fine-tuning of LLMs with full sovereignty and security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  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. | |||||
| 21 |  Refuelrefuel.aiHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 8 contacts → |
“Generate, annotate, clean and enrich datasets for all your AI needs with Refuel's LLM-powered platform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  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. | |||||
| 23 |  Studio Ousia INCousia.jpHQ: Chiyoda-ku, JapanReported employees: 1-10 | Chiyoda-ku, Japan | 1-10 | Exact match | 7 contacts → |
“Accelerate your business with state-of-the-art large language models that integrate your knowledge.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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. | |||||
| 25 |  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. | |||||
Showing 25 of 208 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Large language model training 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
208 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 208 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 ↗
Large language model training companies by location
1 lists · largest firstEvery Large language model training 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 large language model training 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 large language model training companies did RevenueBase find worldwide?
The saved snapshot records 208 matching company records, 7,789 tracked contacts and 1,009 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 large language model training companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/large-language-model-training-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 large language model training companies worldwide
RevenueBase records 208 matching company records for large language model training companies worldwide, with 7,789 tracked contacts and 1,009 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 large language model training 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 | Telus Digital AI Data Solutionstelusdigital.com HQ: Las Vegas, NV, United StatesReported employees: 10001+ | Las Vegas, NV, United States | 10001+ | Exact match | 5,427 contacts → |
“TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | E2f, INCe2f.com HQ: Los Altos, CA, United StatesReported employees: 51-200 | Los Altos, CA, United States | 51-200 | Exact match | 537 contacts → |
“We leverage our AI data and localization experience – gained from working with the largest AI/NLP deployments in the world – to help train and fine-tune AI and LLM apps.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | WOW AIaixblock.io HQ: Newark, DE, United StatesReported employees: 201-500 | Newark, DE, United States | 201-500 | Exact match | 142 contacts → |
“Wow AI | Powered by AIxBlock - is an.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Crowdworks AIcrowdworks.ai HQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 123 contacts → |
“Established in April 2017, Crowdworks is South Korea's leading AI tech company, chosen by over 500 companies across various industries, including major domestic ICT enterprises…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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. | |||||
| 7 | MLG Internationalmlginternational.com HQ: Miami, United StatesReported employees: 11-50 | Miami, United States | 11-50 | Exact match | 92 contacts → |
“Over the past 20 years, we’ve served over 450 clients, including Fortune 500 companies and the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Datasaurdatasaur.ai HQ: San Francisco Bay, CA, United StatesReported employees: 51-200 | San Francisco Bay, CA, United States | 51-200 | Exact match | 72 contacts → |
“Datasaur builds and deploys Private AI for organizations that can't send their data to someone else's cloud, banks, hospitals, government agencies, and enterprises handling…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Vstormvstorm.co HQ: Wrocław, PolandReported employees: 11-50 | Wrocław, Poland | 11-50 | Exact match | 47 contacts → |
“We build custom AI & LLM-based software We help startups, scaleups, and tech companies to drive ROI by hyper-personalization, hyper-automation, and enhanced decision-making…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Arcee AIarcee.ai HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 42 contacts → |
“World-class performance per parameter language models, from IoT to the data center.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dataroot Labsdatarootlabs.com HQ: Kyiv, UkraineReported employees: 11-50 | Kyiv, Ukraine | 11-50 | Exact match | 33 contacts → |
“DataRoot Labs is a full-cycle AI R&D center and the largest talent & compute pool in Ukraine.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | Estidama UAEestidama.ai HQ: Abu Dhabi, United Arab EmiratesReported employees: 11-50 | Abu Dhabi, United Arab Emirates | 11-50 | Exact match | 17 contacts → |
“Estidama is a cutting-edge technology firm at the forefront of the artificial intelligence revolution.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | neon.aineon.ai HQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 15 contacts → |
“Neon.ai is a trailblazer in the field of human-AI collaboration through our unique, private, and innovative conversational AI technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | AI Makerspaceaimakerspace.io HQ: Columbus, OH, United StatesReported employees: 1-10 | Columbus, OH, United States | 1-10 | Exact match | 14 contacts → |
“AI Makerspace offers the industry-standard AI FDE Engineering Certification and enterprise AI programs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Deepchecks NOW Check Pointdeepchecks.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 13 contacts → |
“Evaluation for LLM-Based Apps Release high-quality LLM apps quickly without compromising on testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | custom.mtcustom.mt HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Custom.MT is a machine translation training and implementation company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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. | |||||
| 19 | Deepmaskdeepmask.io HQ: Munich, GermanyReported employees: 1-10 | Munich, Germany | 1-10 | Exact match | 11 contacts → |
“DeepMask provides a full-stack platform to build, deploy and run LLMs, internal knowledgebase RAG pipelines and fine-tuning of LLMs with full sovereignty and security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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. | |||||
| 21 | Refuelrefuel.ai HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 8 contacts → |
“Generate, annotate, clean and enrich datasets for all your AI needs with Refuel's LLM-powered platform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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. | |||||
| 23 | Studio Ousia INCousia.jp HQ: Chiyoda-ku, JapanReported employees: 1-10 | Chiyoda-ku, Japan | 1-10 | Exact match | 7 contacts → |
“Accelerate your business with state-of-the-art large language models that integrate your knowledge.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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. | |||||
| 25 | 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. | |||||
Showing 25 of 208 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Large language model training 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
208 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 208 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 ↗
Large language model training companies by location
1 lists · largest firstEvery Large language model training 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 large language model training 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 large language model training companies did RevenueBase find worldwide?
The saved snapshot records 208 matching company records, 7,789 tracked contacts and 1,009 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 large language model training companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/large-language-model-training-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗