Company lists · Data refreshed September 2026

Top 25 Multilingual voice AI companies based in the United States

RevenueBase identified 592 multilingual voice AI companies headquartered in the United States as of September 2026 and tracks 42,532 professional contacts across them, including 9,685 with verified work emails and 5,870 with mobile numbers. San Francisco is the largest hub.

This list covers multilingual voice 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, its RevenueBase Smart Search rating, 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 Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
592Companies
42,532Contacts tracked
9,685Verified emails
5,870Mobile numbers
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The 25 largest multilingual voice AI companies based in the United States

Ranked by team size
Top 25 of 592 multilingual voice AI companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to multilingual voice AI companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 5, 20265,001-10,00010,750 contacts →

Partial evidence

“TransPerfect helps organizations streamline global operations through language and AI solutions, advanced automation, and enterprise-grade technology integrations.”

Source: RevenueBase Database · checked Sep 5, 2026
2Partial evidenceLas Vegas, NV, United StatesHQ checked Sep 5, 202610001+4,886 contacts →

Partial evidence

“TELUS Digital AI & Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.”

Source: RevenueBase Database · checked Sep 5, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 20261,001-5,0004,873 contacts →

Strong evidence

“Welocalize, a Welo Global brand, serves localization teams through AI-enabled multilingual content solutions that enable enterprises to operate and scale globally.”

Source: RevenueBase Database · checked Sep 5, 2026
4Partial evidenceBurlington, MA, United StatesHQ checked Sep 5, 202610001+3,544 contacts →

Partial evidence

“Nuance Communications is a technology pioneer with market leadership in conversational, ambient, and generative AI.”

Source: RevenueBase Database · checked Sep 5, 2026
5Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 5, 20261,001-5,0002,503 contacts →

Indirect evidence

“GLOBO is a technology-enabled patient communication company, giving organizations the ability to communicate in any language, 24/7 through one simple platform.”

Source: RevenueBase Database · checked Sep 5, 2026
6Partial evidenceBurlington, MA, United StatesHQ checked Sep 5, 20261,001-5,0001,184 contacts →

Partial evidence

“Cerence AI (NASDAQ: CRNC) is a global industry leader in creating intuitive, seamless, AI-powered experiences across automotive and transportation.”

Source: RevenueBase Database · checked Sep 5, 2026
7Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,050 contacts →

Partial evidence

“Gupshup is the leading platform for building and deploying industry-trained Conversational AI Agents for every business across marketing, commerce, and support use cases.”

Source: RevenueBase Database · checked Sep 5, 2026
8Partial evidenceMiami, FL, United StatesHQ checked Sep 5, 2026501-1,000899 contacts →

Partial evidence

“With 30+ years of experience in data annotation, we support AI innovators to build smarter AI.”

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceNew York, United StatesHQ checked Sep 5, 2026n/a679 contacts →

Indirect evidence

“Research Lab.”

Source: RevenueBase Database · checked Sep 5, 2026
10Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 5, 2026501-1,000669 contacts →

Strong evidence

“SoundHound AI (Nasdaq: SOUN), a global leader in voice and conversational AI, delivers solutions that allow businesses to offer superior experiences to their customers.”

Source: RevenueBase Database · checked Sep 5, 2026
11Partial evidenceLos Altos, CA, United StatesHQ checked Sep 5, 202651-200551 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 5, 2026
12Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 2026201-500425 contacts →

Indirect evidence

“Unbabel eliminates language barriers so that businesses can thrive across cultures and geographies.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceOverland Park, United StatesHQ checked Sep 5, 2026n/a308 contacts →

Indirect evidence

“Visit Propio-LS.com”

Source: RevenueBase Database · checked Sep 5, 2026
14Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 202651-200262 contacts →

Strong evidence

“Deepgram is the real-time API platform powering the trillion-dollar Voice AI economy.”

Source: RevenueBase Database · checked Sep 5, 2026
15Partial evidencePalo Alto, CA, United StatesHQ checked Sep 5, 202651-200259 contacts →

Partial evidence

“Sanas is the world's first and most trusted real-time Speech AI platform.”

Source: RevenueBase Database · checked Sep 5, 2026
16Partial evidenceLos Gatos, CA, United StatesHQ checked Sep 5, 2026201-500254 contacts →

Partial evidence

“ELSA is the AI-powered spoken English platform that helps businesses, educational institutions, and individuals improve communication performance with confidence.”

Source: RevenueBase Database · checked Sep 5, 2026
17Strong evidenceBerkeley, CA, United StatesHQ checked Sep 5, 202651-200246 contacts →

Strong evidence

“Krisp builds real-time Voice AI for the real world.”

Source: RevenueBase Database · checked Sep 5, 2026
18Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 202651-200234 contacts →

Strong evidence

“Gnani AI is the frontier Voice AI company the world runs on.”

Source: RevenueBase Database · checked Sep 5, 2026
19Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 2026n/a212 contacts →

Partial evidence

“AI is producing content at unprecedented speed.”

Source: RevenueBase Database · checked Sep 5, 2026
20Strong evidencePlano, TX, United StatesHQ checked Sep 5, 2026n/a196 contacts →

Strong evidence

“Deepdub is the enterprise voice infrastructure powering AI in production.”

Source: RevenueBase Database · checked Sep 5, 2026
21Partial evidenceLas Vegas, NV, United StatesHQ checked Sep 5, 202610001+173 contacts →

Partial evidence

“TELUS International AI Data Solutions partners with a diverse and vibrant community to help our customers enhance their AI and machine learning models.”

Source: RevenueBase Database · checked Sep 5, 2026
22Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 202651-200164 contacts →

Indirect evidence

“Redrob -'border' in reverse - is building LLMs for the next 3 billion.”

Source: RevenueBase Database · checked Sep 5, 2026
23Indirect evidenceWinter Garden, FL, United StatesHQ checked Sep 5, 2026201-500153 contacts →

Indirect evidence

“We are a HIPAA Complaint Language Service Provider and Business solutions company based in Winter Garden Florida, United States and in Braga Portugal.”

Source: RevenueBase Database · checked Sep 5, 2026
24Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 202651-200147 contacts →

Strong evidence

“At Murf AI, we believe voice will always be humanity’s most natural interface and we empower builders and creators to unlock the full potential of AI voice.”

Source: RevenueBase Database · checked Sep 5, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 202651-200146 contacts →

Indirect evidence

“Wouldn’t life be easier if video conferencing platforms had a button that let every participant speak and listen in whatever language they want?” Enter KUDO, the team bringing…”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 25 of 592 multilingual voice AI companies based in the United States

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Multilingual voice AI companies based in the United States at a glance

As of Sep 5, 2026
22.8%Verified-email coverage
13.8%Mobile-number coverage
71.8Average contacts per company
1-10Median size (employees)
13.9%Largest-city concentration · San Francisco
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
309
11-50
188
51-200
65
201-500
15
501-1,000
3
1,001-5,000
5
5,001-10,000
1
10001+
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 multilingual voice AI companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “multilingual voice AI companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names multilingual voice AI companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among multilingual voice 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 its RevenueBase Smart Search 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, 9,685 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names multilingual voice AI companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many multilingual voice AI companies are there based in the United States?

RevenueBase identified 592 multilingual voice 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?

Transperfect, headquartered in New York, tops this list with the largest team on record.

Which city has the most multilingual voice AI companies?

San Francisco leads with 82 headquartered companies, followed by New York (40) and Austin (19).

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 9,685 verified decision-maker contacts tracked across these 592 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 Smart Search, 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.