Company lists · Data verified August 2026

Top 25 Conversational AI platforms based in the United States

Name: Conversational AI platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,362 companies tracked

There are 1,362 conversational AI platforms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 24,088 professional contacts across them, including 7,630 with verified work emails and 6,042 with mobile numbers. San Francisco is the largest hub.

This list covers conversational AI platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

1,362Companies

24,088Contacts tracked

7,630Verified emails

6,042Mobile numbers

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The 25 largest conversational AI platforms based in the United States

Ranked by team size

Top 25 of 1,362 conversational AI platforms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Nuance Communications	Seattle, WA	10001+	3,587	564
2	Dialpad	San Ramon, CA	1,001-5,000	1,463	840
3	Airtable	San Francisco, CA	501-1,000	928	484
4	Sierra	San Francisco, CA	201-500	541	305
5	Gorgias	San Francisco, CA	201-500	486	263
6	observe.ai	Redwood City, CA	201-500	373	179
7	Flip Robo Technologies LLC	Houston, TX	201-500	349	1
8	ASAPP	Mountain View, CA	201-500	327	153
9	Leena AI	San Francisco, CA	201-500	325	205
10	Callminer	Waltham, MA	201-500	316	225
11	Sms-Magic	Henderson, NV	51-200	293	56
12	Intelepeer	Centennial, CO	201-500	285	158
13	SANAS	Palo Alto, CA	51-200	254	149
14	USHUR	Santa Clara, CA	201-500	252	96
15	otter.ai	Mountain View, CA	51-200	249	173
16	gnani.ai	San Francisco, CA	51-200	230	95
17	character.ai	Redwood City, CA	51-200	228	75
18	Marchex	Seattle, WA	201-500	196	97
19	Sestek	York	51-200	185	92
20	Trellissoft, INC	San Jose, CA	51-200	182	111
21	Drift, A Salesloft Company	Seattle, WA	501-1,000	168	15
22	DRIPS	Akron, OH	51-200	142	103
23	Biz4group LLC	Orlando, FL	51-200	139	68
24	Vcloud	Las Vegas	501-1,000	137	54
25	Conversica	San Francisco, CA	51-200	130	44

Showing 25 of 1,362 conversational AI platforms based in the United States

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Conversational AI platforms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

San FranciscoLargest hub · 154 HQs

6,042Contacts with mobile numbers

13Emails re-verified in last 30 days

Companies by employee count

1-10

788

11-50

418

51-200

108

201-500

501-1,000

1,001-5,000

10001+

Conversational AI platforms by metro

Metro	Companies
Conversational AI platforms in San Francisco	154
Conversational AI platforms in New York	95
Conversational AI platforms in Austin	44
Conversational AI platforms in Los Angeles	42
Conversational AI platforms in Miami	33
Conversational AI platforms in Dover	31
Conversational AI platforms in Newark	21

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “conversational AI platforms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 13 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many conversational AI platforms are there based in the United States?

There are 1,362 conversational AI platforms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most conversational AI platforms?

San Francisco leads with 154 headquartered companies, followed by New York (95) and Austin (44).

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 7,630 verified decision-maker contacts tracked across these 1,362 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.