Company lists · Data refreshed November 2026

Top 25 AI model fine-tuning companies worldwide

RevenueBase identified 2,316 company matches for AI model fine-tuning companies worldwide as of November 2026 and tracks 67,692 professional contacts across them, including 15,289 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for AI model fine-tuning 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 AI model fine-tuning 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
2,316Companies
67,692Contacts tracked
15,289Verified emails
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The 25 largest AI model fine-tuning companies worldwide

Ranked by team size
Top 25 of 2,316 company matches for AI model fine-tuning companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchSouthfield, CA, United StatesHQ recorded Nov 6, 20265,001-10,0007,248 contacts →

Exact match

“Altimetrik is an AI-native engineering company that builds systems to power the modern enterprise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 202610001+6,998 contacts →

Exact match

“iMerit is a leader in expert data solutions for training, tuning and evaluating AI models and computer vision systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202610001+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
4Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026n/a4,746 contacts →

Exact match

“Invisible Technologies makes AI work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261,001-5,0003,016 contacts →

Exact match

“What Does Sama Do Sama gets your AI project to production-and helps you stay there.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHyderabad, IndiaHQ recorded Nov 6, 20261,001-5,0002,666 contacts →

Exact match

“This page has transitioned to Bounteous India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGurgaon, IndiaHQ recorded Nov 6, 20261,001-5,0002,042 contacts →

Exact match

“We aim to help build high-quality AI models by providing high-quality data and model evaluations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJersey City, United StatesHQ recorded Nov 6, 20261,001-5,0001,813 contacts →

Exact match

“Sigmoid is an AI-first company that helps organizations modernize data, transform business processes, and make better decisions using data and AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEveleigh, AustraliaHQ recorded Nov 6, 20261,001-5,0001,399 contacts →

Exact match

“We've been building AI systems that run in production since 2002.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPalo Alto, United StatesHQ recorded Nov 6, 2026501-1,000937 contacts →

Exact match

“Uniphore is The Business AI Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSingapore, CA, United StatesHQ recorded Nov 6, 2026201-500930 contacts →

Exact match

“Thoth AI is a global AI data solutions company with R&D operations in Silicon Valley, working with AI teams to support the design, development, and deployment of production-grade…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMinneapolis, United StatesHQ recorded Nov 6, 2026501-1,000874 contacts →

Exact match

“phData builds intelligent systems for enterprises ready to turn AI ambition into a working business advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchChicago, United StatesHQ recorded Nov 6, 2026501-1,000844 contacts →

Exact match

“66degrees is an AI-native company that partners with enterprises to turn AI into a real operating advantage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBangalore, IndiaHQ recorded Nov 6, 2026501-1,000833 contacts →

Exact match

“DataMites is one of the world’s longest-established and largest career-skills training institutes focused exclusively on Artificial Intelligence, Data Science, Machine Learning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDallas, United StatesHQ recorded Nov 6, 2026501-1,000818 contacts →

Exact match

“We enable intelligent enterprises by translating business outcomes into decision-centric data products, powered by AI Factory Construct, accelerators, and Agentic Intelligence…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew York, United StatesHQ recorded Nov 6, 20261,001-5,000777 contacts →

Exact match

“Cogito Tech is a global managed service provider specializing in scalable data development tailored for AI model development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSan Jose, NJ, United StatesHQ recorded Nov 6, 2026501-1,000682 contacts →

Exact match

“Relevance Lab is a next-generation technology services company -.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKrakow, CyprusHQ recorded Nov 6, 20261,001-5,000575 contacts →

Exact match

“Mindy Support delivers end-to-end AI data infrastructure - from data collection and annotation to LLM training and BPO - trusted by Fortune 500 and GAFAM companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKirkland, WA, United StatesHQ recorded Nov 6, 20261,001-5,000539 contacts →

Exact match

“Volga Partners is a global leader in generative AI (GenAI) innovation, building and deploying advanced AI solutions that power real-world business transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMountain View, CA, United StatesHQ recorded Nov 6, 202651-200536 contacts →

Exact match

“Build Super Accurate AI with us.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-200441 contacts →

Exact match

“Labelbox builds and operates reinforcement learning data factories for the world’s leading AI labs and enterprises, powering the next generation of frontier models and AI…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGurgaon, United StatesHQ recorded Nov 6, 2026201-500389 contacts →

Exact match

“Shorthills AI was founded in Short Hills, New Jersey in 2018 by serial tech entrepreneurs with experience in Amazon, Microsoft and S&P.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCypress, TX, United StatesHQ recorded Nov 6, 2026201-500385 contacts →

Exact match

“RandomTrees is a global provider of Data and AI services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 202651-200372 contacts →

Exact match

“Fireworks is the fastest way to build, tune, and scale AI on open models.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHyderabad, IndiaHQ recorded Nov 6, 2026201-500358 contacts →

Exact match

“Jukshio – A SukShi Company, was founded in 2019 to help enterprises build, optimise, and scale AI solutions to drive tangible business results while preserving their strategic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,316 AI model fine-tuning companies worldwide

See the full list, filter by size, metro and specialty, and access 15,289 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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AI model fine-tuning companies worldwide at a glance

As of Nov 6, 2026
22.6%Verified-email coverage
29.2Average contacts per company
1-10Median size (employees)
3.1%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,491
11-50
591
51-200
157
201-500
40
501-1,000
12
1,001-5,000
14
5,001-10,000
4
10001+
4

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 AI model fine-tuning companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “AI model fine-tuning 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 15,289 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.

AI model fine-tuning companies by location

15 lists · largest first

Every AI model fine-tuning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “AI model fine-tuning companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many AI model fine-tuning companies are there worldwide?

RevenueBase identified 2,316 company matches for AI model fine-tuning 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?

Altimetrik tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most AI model fine-tuning companies?

The United States leads with 495 companies, followed by India (281) and the United Kingdom (112). Every AI model fine-tuning companies list by country and city is linked on this page.

Which city has the most AI model fine-tuning companies?

London leads with 71 company records, followed by Bangalore (54) and New York (48).

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 15,289 professional contacts with verified work emails tracked across these 2,316 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.

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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.