Company lists · Data refreshed November 2026

Top 25 Large language model optimization companies based in the United States

RevenueBase identified 104 company matches for large language model optimization companies associated with the United States as of November 2026 and tracks 1,849 professional contacts across them, including 414 with verified work emails. San Francisco is the largest hub.

This list covers company matches for large language model optimization companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
104Companies
1,849Contacts tracked
414Verified emails
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The 25 largest large language model optimization companies based in the United States

Ranked by team size
Top 25 of 104 company matches for large language model optimization companies based in the United States, 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 matchLos Altos, CA, United StatesHQ recorded Nov 6, 202651-200537 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
2Exact matchSan Francisco, United StatesHQ recorded Nov 6, 202651-200191 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
3Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-50105 contacts →

Exact match

“The unified interface for LLMs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“AppTek.ai is a global leader in artificial intelligence (AI) and machine learning (ML) technologies for automatic speech recognition (ASR), neural machine translation (NMT)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-20089 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
6Exact matchSan Francisco Bay, CA, United StatesHQ recorded Nov 6, 202651-20072 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
7Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5042 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
8Exact matchCambridge, TX, United StatesHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“We are a leading AI development company that assists businesses of all sizes to conceptualize, design, and build enterprise AI applications, train and enhance LLMs, and hire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMiami / Fort Lauderdale, FL, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Lamatic.ai is a Managed GenAI platform that allows you to seamlessly integrate Large Language Models (LLMs) into your applications using real-time data fast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“Here at Merlyn Mind, we believe artificial intelligence is most valuable when purpose-built solutions are developed for vertical domains, and that’s exactly what we’re doing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“UbiAI accelerates task-specific model training from months to days.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBellevue, WA, United StatesHQ recorded Nov 6, 202611-5015 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
13Exact matchRedwood City, CA, United StatesHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Observe & Optimize AI infrastructure for LLM apps Understand how your LLM apps consume AI infra and auto-remediate bottlenecks or wasteful spend to maximize ROI of your AI projects”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 20261-1014 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
15Exact matchSheridan, WY, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“About Us At ScaleGenAI, we are at the forefront of transforming how businesses interact with generative AI– streamlining LLM fine-tuning, inference, and genAI app development with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Neural Bridge is an AI Lab.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Every AI system eventually runs out of room.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Making it easy to run or deploy machine learning models and develop LLM applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDetroit, MI, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Knowbl is the Enterprise AI Acceleration Partner for Fortune 500 companies who need AI agents that actually work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-106 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
21Exact matchChelmsford, MA, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Unlock the potential of AI with a team that understands your science and your strategy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Okareo helps enterprises ship reliable Voice AI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRemote, United StatesHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Unleash your business potential with our LLM powered data solutions at scale”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNeedham Heights, MA, United StatesHQ recorded Nov 6, 202651-2004 contacts →

Exact match

“Quantum Gears is leading the Enterprise GenAI revolution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Get the right context to your LLM powered application.”

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

Showing 25 of 104 large language model optimization companies based in the United States

See the full list, filter by size, metro and specialty, and access 414 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Large language model optimization companies based in the United States at a glance

As of Nov 6, 2026
22.4%Verified-email coverage
17.8Average contacts per company
1-10Median size (employees)
16.3%Largest-city concentration · San Francisco
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
24
51-200
15

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 104 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “large language model optimization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 414 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.

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 optimization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many large language model optimization companies are there based in the United States?

RevenueBase identified 104 company matches for large language model optimization companies associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

E2f, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most large language model optimization companies?

San Francisco leads with 17 company records, followed by New York (16) and Palo Alto (4).

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 414 professional contacts with verified work emails tracked across these 104 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.