Company lists · Data refreshed September 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 Data refreshed Sep 1, 2026 1,362 companies tracked

RevenueBase identified 1,362 conversational AI platforms headquartered in the United States as of September 2026 and 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

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 refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to conversational AI platforms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nuance Communications	Strong evidence	Seattle, WA, United States	10001+	3,587 contacts →
	Strong evidence “Nuance Communications is a technology pioneer with market leadership in conversational, ambient, and generative AI.” Source: RevenueBase Database · checked Sep 1, 2026
2	Dialpad	Strong evidence	San Ramon, CA, United States	1,001-5,000	1,463 contacts →
	Strong evidence “Dialpad is the leading AI-powered communications intelligence platform creating human-first, AI-enhanced solutions that will drive the next wave of how businesses communicate with…” Source: RevenueBase Database · checked Sep 1, 2026
3	Airtable	Strong evidence	San Francisco, CA, United States	501-1,000	928 contacts →
	Strong evidence “Airtable’s AI app platform is the easiest way to build custom apps that accelerate your business operations.” Source: RevenueBase Database · checked Sep 1, 2026
4	Sierra	Partial evidence	San Francisco, CA, United States	201-500	541 contacts →
	Partial evidence “Sierra helps businesses build better, more human customer experiences with AI.” Source: RevenueBase Database · checked Sep 1, 2026
5	Gorgias	Strong evidence	San Francisco, CA, United States	201-500	486 contacts →
	Strong evidence “Gorgias is the Conversational AI platform for ecommerce that drives sales and resolves support inquiries.” Source: RevenueBase Database · checked Sep 1, 2026
6	observe.ai	Strong evidence	Redwood City, CA, United States	201-500	373 contacts →
	Strong evidence “Observe.AI is the AI Agents platform for customer experience, designed to help organizations deliver faster, smarter, and more efficient customer service at scale.” Source: RevenueBase Database · checked Sep 1, 2026
7	Flip Robo Technologies LLC	Indirect evidence	Houston, TX, United States	201-500	349 contacts →
	Indirect evidence “Flip Robo is an artificial intelligence company.” Source: RevenueBase Database · checked Sep 1, 2026
8	ASAPP	Indirect evidence	Mountain View, CA, United States	201-500	327 contacts →
	Indirect evidence “ASAPP is an artificial intelligence solution provider committed to solving the toughest problems in customer service.” Source: RevenueBase Database · checked Sep 1, 2026
9	Leena AI	Partial evidence	San Francisco, CA, United States	201-500	325 contacts →
	Partial evidence “Leena AI empowers employees using “AI Colleagues” to get answers and take action across IT, HR, Finance, Procurement and beyond through a single intelligent interface.” Source: RevenueBase Database · checked Sep 1, 2026
10	Callminer	Strong evidence	Waltham, MA, United States	201-500	316 contacts →
	Strong evidence “CallMiner is the global leader in AI-powered conversation intelligence and customer experience (CX) automation.” Source: RevenueBase Database · checked Sep 1, 2026
11	Sms-Magic	Strong evidence	Henderson, NV, United States	51-200	293 contacts →
	Strong evidence “Conversive is the world’s first Intelligent & Empathetic Conversations AI Platform, redefining how businesses engage customers in life-changing decisions with trust, care, and…” Source: RevenueBase Database · checked Sep 1, 2026
12	Intelepeer	Indirect evidence	Centennial, CO, United States	201-500	285 contacts →
	Indirect evidence “IntelePeer automates customer interactions, enabling businesses and contact centers to lower costs, improve customer experience, and accelerate return on investment.” Source: RevenueBase Database · checked Sep 1, 2026
13	SANAS	Strong evidence	Palo Alto, CA, United States	51-200	254 contacts →
	Strong evidence “Sanas is the world's first and most trusted real-time Speech AI platform.” Source: RevenueBase Database · checked Sep 1, 2026
14	USHUR	Strong evidence	Santa Clara, CA, United States	201-500	252 contacts →
	Strong evidence “Ushur delivers the world’s first AI-powered Customer Experience Automation™ platform that has been purpose-built, from the ground up, to intelligently automate entire customer…” Source: RevenueBase Database · checked Sep 1, 2026
15	otter.ai	Strong evidence	Mountain View, CA, United States	51-200	249 contacts →
	Strong evidence “Otter.ai is the Conversational Knowledge Engine built for the modern enterprise, giving AI agents the organizational context to act on by connecting thousands of conversations…” Source: RevenueBase Database · checked Sep 1, 2026
16	gnani.ai	Partial evidence	San Francisco, CA, United States	51-200	230 contacts →
	Partial evidence “Gnani AI is the frontier Voice AI company the world runs on.” Source: RevenueBase Database · checked Sep 1, 2026
17	character.ai	Partial evidence	Redwood City, CA, United States	51-200	228 contacts →
	Partial evidence “Character.AI isn’t just another AI chat app-it’s an infinite playground for your imagination, creativity, and exploration.” Source: RevenueBase Database · checked Sep 1, 2026
18	Marchex	Strong evidence	Seattle, WA, United States	201-500	196 contacts →
	Strong evidence “Marchex harnesses the power of AI and conversational intelligence to provide actionable insights aligned with prescriptive vertical market data analytics, driving operational…” Source: RevenueBase Database · checked Sep 1, 2026
19	Sestek	Strong evidence	York, United States	51-200	185 contacts →
	Strong evidence “SESTEK is a conversational automation company working on AI-powered solutions for customer service since Our R&D team of 100+ engineers develops conversational products built on…” Source: RevenueBase Database · checked Sep 1, 2026
20	Trellissoft, INC	Indirect evidence	San Jose, CA, United States	51-200	182 contacts →
	Indirect evidence “A pioneer in delivering world-class IT services for over 10 years in the industry.” Source: RevenueBase Database · checked Sep 1, 2026
21	Drift, A Salesloft Company	Strong evidence	Seattle, WA, United States	501-1,000	168 contacts →
	Strong evidence “Drift®, the buyer experience and Conversational AI company, inspires businesses to create more engaging customer experiences, one conversation at a time.” Source: RevenueBase Database · checked Sep 1, 2026
22	DRIPS	Indirect evidence	Akron, OH, United States	51-200	142 contacts →
	Indirect evidence “Drips helps companies engage with their consumers more effectively.” Source: RevenueBase Database · checked Sep 1, 2026
23	Biz4group LLC	Indirect evidence	Orlando, FL, United States	51-200	139 contacts →
	Indirect evidence “We believe that the best work is born when diligence mixes with fun, and creativity blends seamlessly with professionalism.” Source: RevenueBase Database · checked Sep 1, 2026
24	Vcloud	Partial evidence	Las Vegas, United States	501-1,000	137 contacts →
	Partial evidence “VCloud Interactive: Redefining Contact Center and Communications with AI and Cloud Technology VCloud Interactive, a subsidiary of VoiceCloud LLC, has been at the forefront of…” Source: RevenueBase Database · checked Sep 1, 2026
25	Conversica	Strong evidence	San Francisco, CA, United States	51-200	130 contacts →
	Strong evidence “Conversica’s AI Agents help you start effortless conversations that build trust, deepen relationships, and drive growth.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: conversational AI platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names conversational AI platforms.
Partial evidence: Its own public description names part of conversational AI platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name conversational AI platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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 Sep 1, 2026

31.7%Verified-email coverage

25.1%Mobile-number coverage

17.7Average contacts per company

1-10Median size (employees)

11.3%Largest-city concentration · San Francisco

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

788

11-50

418

51-200

108

201-500

501-1,000

1,001-5,000

10001+

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 conversational AI platforms, 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 “conversational AI platforms”. 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 conversational AI platforms), 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 conversational AI platforms, 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, 7,630 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 1, 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.

Conversational AI platforms by metro

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 conversational AI platforms, 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 conversational AI platforms are there based in the United States?

RevenueBase identified 1,362 conversational AI platforms 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 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 refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 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.