Company lists · Data refreshed September 2026

Top 25 Natural language processing AI companies based in the United States

Name: Natural language processing AI companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 456 companies tracked

RevenueBase identified 456 natural language processing AI companies headquartered in the United States as of September 2026 and tracks 13,934 professional contacts across them, including 2,856 with verified work emails and 2,534 with mobile numbers. San Francisco is the largest hub.

This list covers natural language processing AI companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

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

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

456Companies

13,934Contacts tracked

2,856Verified emails

2,534Mobile numbers

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The 25 largest natural language processing AI companies based in the United States

Ranked by team size

Top 25 of 456 natural language processing AI companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names natural language processing AI companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Nuance CommunicationsPartial evidence	Burlington, MA, United StatesHQ checked Sep 5, 2026	10001+	3,544
	“Nuance Communications is a technology pioneer with market leadership in conversational, ambient, and generative AI.” Source: company website · checked Sep 5, 2026
2	WriterPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	n/a	1,596
	“WRITER is where the world’s leading enterprises orchestrate AI-powered work.” Source: company website · checked Sep 5, 2026
3	kore.aiPartial evidence	San Mateo, CA, United StatesHQ checked Sep 5, 2026	501-1,000	1,237
	“Kore.ai, a leader in enterprise AI, accelerates business outcomes from AI with agentic AI applications built on the industry-leading Kore.ai Agent Platform.” Source: company website · checked Sep 5, 2026
4	ElevenlabsIndirect evidence	New York, United StatesHQ checked Sep 5, 2026	n/a	679
	“Research Lab.” Source: company website · checked Sep 5, 2026
5	E2f, INCPartial evidence	Los Altos, CA, United StatesHQ checked Sep 5, 2026	51-200	551
	“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.” Source: company website · checked Sep 5, 2026
6	Volga PartnersPartial evidence	Kirkland, WA, United StatesHQ checked Sep 5, 2026	1,001-5,000	516
	“Volga Partners is a global leader in generative AI (GenAI) innovation, building and deploying advanced AI solutions that power real-world business transformation.” Source: company website · checked Sep 5, 2026
7	Shorthills AIPartial evidence	West, NJ, United StatesHQ checked Sep 5, 2026	201-500	372
	“Shorthills AI is a Generative AI and data engineering company that derives its name from Short Hills, New Jersey with offices in India, USA, Australia and Canada.” Source: company website · checked Sep 5, 2026
8	Aifa LabsPartial evidence	Frisco, TX, United StatesHQ checked Sep 5, 2026	201-500	237
	“Most enterprises don't have an AI problem; they have an execution problem.” Source: company website · checked Sep 5, 2026
9	Master Of Code GlobalIndirect evidence	Redwood City, CA, United StatesHQ checked Sep 5, 2026	201-500	205
	“delivered projects for clients like T-Mobile, Tom Ford, Burberry, MTV, Rio Olympics, Golden State Warriors, Aveda, Jo Malone, La Mer, Dr.” Source: company website · checked Sep 5, 2026
10	RedrobIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	164
	“Redrob -'border' in reverse - is building LLMs for the next 3 billion.” Source: company website · checked Sep 5, 2026
11	APP Orchid INCPartial evidence	San Ramon, CA, United StatesHQ checked Sep 5, 2026	51-200	157
	“App Orchid accelerates enterprise AI, analytics, and decision intelligence-connecting data, context, and users to drive smarter, faster outcomes.” Source: company website · checked Sep 5, 2026
12	StartupsoftPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	128
	“StartupSoft is an AI-focused software engineering company.” Source: company website · checked Sep 5, 2026
13	Inworld AIPartial evidence	Mountain View, CA, United StatesHQ checked Sep 5, 2026	51-200	108
	“Inworld AI is a realtime AI research lab and model provider, providing Voice AI built for realtime conversation that feels as human as it sounds.” Source: company website · checked Sep 5, 2026
14	Citrusbug TechnolabsPartial evidence	Itasca, IL, United StatesHQ checked Sep 5, 2026	51-200	103
	“Citrusbug is a leading AI software engineering company, making high-end and complex AI/ML services accessible to enterprises, SMEs, and startups without breaking the bank.” Source: company website · checked Sep 5, 2026
15	MLG InternationalIndirect evidence	Miami, FL, United StatesHQ checked Sep 5, 2026	11-50	102
	“Over the past 20 years, we’ve served over 450 clients, including Fortune 500 companies and the U.S.” Source: company website · checked Sep 5, 2026
16	apptek.aiPartial evidence	Mclean, VA, United StatesHQ checked Sep 5, 2026	51-200	95
	“AppTek.ai is a global leader in artificial intelligence (AI) and machine learning (ML) technologies for automatic speech recognition (ASR), neural machine translation (NMT)…” Source: company website · checked Sep 5, 2026
17	Cloudtern SolutionsPartial evidence	Plano, TX, United StatesHQ checked Sep 5, 2026	51-200	68
	“CloudTern drives innovation with AI-powered solutions, helping businesses transform operations and thrive in today’s competitive landscape.” Source: company website · checked Sep 5, 2026
18	INTUZPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	67
	“Intuz develops AI solutions that go directly into production, not just presentations.” Source: company website · checked Sep 5, 2026
19	ARRIAStrong evidence	Morristown, NJ, United StatesHQ checked Sep 5, 2026	201-500	61
	“Mission-Critical Generative AI - Arria is a recognized global leader in Artificial Intelligence (AI), natural language technologies, and Generative AI.” Source: company website · checked Sep 5, 2026
20	DataorbPartial evidence	Schaumburg, IL, United StatesHQ checked Sep 5, 2026	11-50	61
	“DataOrb is a pioneering AI company transforming how organizations understand and act on customer conversations.” Source: company website · checked Sep 5, 2026
21	Smarc Solutions INCIndirect evidence	Pleasanton, CA, United StatesHQ checked Sep 5, 2026	51-200	58
	“About us: Smarc Solutions Inc.” Source: company website · checked Sep 5, 2026
22	Meetkai INCStrong evidence	Los Angeles, United StatesHQ checked Sep 5, 2026	51-200	55
	“Founded in 2018, we're an AI company focused on post-training optimization, local-language reasoning models, and sovereign AI infrastructure.” Source: company website · checked Sep 5, 2026
23	Odin AIPartial evidence	Los Angeles, CA, United StatesHQ checked Sep 5, 2026	201-500	50
	“Unlock the power of AI with Odin AI – your all-in-one solution for personalized content generation, chatbot interaction, document collaboration, and actionable insights.” Source: company website · checked Sep 5, 2026
24	AmpcomePartial evidence	Cambridge, MA, United StatesHQ checked Sep 5, 2026	51-200	49
	“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…” Source: company website · checked Sep 5, 2026
25	WiseyakIndirect evidence	Bellevue, WA, United StatesHQ checked Sep 5, 2026	11-50	45
	“Wiseyak Inc.” Source: company website · checked Sep 5, 2026

Showing 25 of 456 natural language processing AI companies based in the United States

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Natural language processing AI companies based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

San FranciscoLargest hub · 40 HQs

2,534Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

257

11-50

135

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

2,656

31–60

151

61–90

90–180

180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among natural language processing AI companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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: Companies headquartered in the United States whose own description of what they do matches “natural language processing AI companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among natural language processing AI companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,856 across the full list. 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 September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Natural language processing AI companies by metro

Natural language processing AI companies in San Francisco40
Natural language processing AI companies in New York34

Frequently asked

How many natural language processing AI companies are there based in the United States?

RevenueBase identified 456 natural language processing AI companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Nuance Communications, headquartered in Burlington, tops this list with the largest team on record.

Which city has the most natural language processing AI companies?

San Francisco leads with 40 headquartered companies, followed by New York (34) and Dover (14).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,856 verified decision-maker contacts tracked across these 456 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.