Company lists · Data refreshed September 2026

Top 25 AI meeting assistants software companies based in the United States

RevenueBase identified 169 AI meeting assistants software companies headquartered in the United States as of September 2026 and tracks 2,024 professional contacts across them, including 599 with verified work emails. San Francisco is the largest hub.

This list covers AI meeting assistants software 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 14, 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 14, 2026 86% judged on-target in blind review
169Companies
2,024Contacts tracked
599Verified emails
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The 25 largest AI meeting assistants software companies based in the United States

Ranked by team size
Top 25 of 169 AI meeting assistants software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to AI meeting assistants software 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 evidenceMountain View, CA, United StatesHQ checked Sep 14, 202651-200249 contacts →

Partial 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 14, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026501-1,000154 contacts →

Partial evidence

“Plaud is building the world's most trusted AI work companion for professionals to elevate productivity and performance through note-taking solutions, loved by over users worldwide…”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceDover, DE, United StatesHQ checked Sep 14, 2026n/a134 contacts →

Partial evidence

“Cabinet is the AI & automation platform for strategic business partners.”

Source: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-50116 contacts →

Partial evidence

“Fathom is a free app that records, transcribes, and summarizes your Zoom, Google Meet or Microsoft Teams meetings so you can focus on the conversation instead of taking notes.”

Source: RevenueBase Database · checked Sep 14, 2026
5Strong evidenceSeattle, United StatesHQ checked Sep 14, 202651-20090 contacts →

Strong evidence

“Read AI is an AI copilot for wherever you work, making your meetings, emails, and messages more productive with summaries, content discovery, and recommendations.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceLos Altos, CA, United StatesHQ checked Sep 14, 202651-20081 contacts →

Indirect evidence

“With Wordly, nobody misses a word.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceSan Francisco, United StatesHQ checked Sep 14, 202611-5047 contacts →

Partial evidence

“Lindy is the AI teammate that does real work for your whole team.”

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceMenlo Park, CA, United StatesHQ checked Sep 14, 202611-5043 contacts →

Partial evidence

“TwinMind is your AI second brain powered by what you say, hear, and see.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceSan Francisco, NY, United StatesHQ checked Sep 14, 202651-20042 contacts →

Indirect evidence

“Identify winning behaviors, execute them in real time, and scale it across the team.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceBeverly, MA, United StatesHQ checked Sep 14, 202651-20036 contacts →

Strong evidence

“Groupize.ai is the category leader in AI-powered meeting and event management, delivering transformative AI that radically simplifies how organizations plan, manage, and govern…”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceNew York City, NY, United StatesHQ checked Sep 14, 202611-5030 contacts →

Partial evidence

“Sembly AI is a pioneering company in the field of Augmented Worker Intelligence, dedicated to enhancing productivity and efficiency in the modern workplace.”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5030 contacts →

Strong evidence

“Vellum is an open-source personal AI assistant built for people who want one system that handles everything.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-5030 contacts →

Indirect evidence

“Trusted By Teams Grain automates note-taking so you can focus on the big picture.”

Source: RevenueBase Database · checked Sep 14, 2026
14Strong evidenceMilpitas, CA, United StatesHQ checked Sep 14, 202611-5028 contacts →

Strong evidence

“NOHOLD develops interactive and diagnostic Artificial Intelligence (AI) Assistants that enhance the customer & employee experience.”

Source: RevenueBase Database · checked Sep 14, 2026
15Strong evidenceLas Vegas, NV, United StatesHQ checked Sep 14, 202651-20025 contacts →

Strong evidence

“Myaa’s are artificial intelligence (AI) assistant models that leverages OpenAI's advanced conversational interface.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceMars, United StatesHQ checked Sep 14, 202611-5024 contacts →

Indirect evidence

“Clara is your partner in doing great work.”

Source: RevenueBase Database · checked Sep 14, 2026
17Strong evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5016 contacts →

Strong evidence

“Built by two former Google engineers, Zeplyn is the AI assistant for financial advisors that streamlines workflows.”

Source: RevenueBase Database · checked Sep 14, 2026
18Strong evidencePalo Alto, CA, United StatesHQ checked Sep 14, 202611-5016 contacts →

Strong evidence

“mymeet.ai is an AI meeting assistant that turns every call into a structured summary, action items, and a follow-up, automatically.”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceSan Francisco, United StatesHQ checked Sep 14, 20261-1014 contacts →

Partial evidence

“Heyday is an AI thought partner that turns your conversations into notes, reading into quotes, and ideas into posts.”

Source: RevenueBase Database · checked Sep 14, 2026
20Strong evidenceSan Francisco, United StatesHQ checked Sep 14, 202611-5013 contacts →

Strong evidence

“The Future of AI-Powered Management is Here Zigzag AI is a voice-controlled AI Assistant manager that works 24/7, always on, always listening, always analyzing, keeping track of…”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

“Welcome to FORA.”

Source: RevenueBase Database · checked Sep 14, 2026
22Partial evidenceSan Francisco, United StatesHQ checked Sep 14, 20261-1010 contacts →

Partial evidence

“Mumble AI builds the next generation of private voice productivity tools.”

Source: RevenueBase Database · checked Sep 14, 2026
23Strong evidenceColumbus, OH, United StatesHQ checked Sep 14, 20261-1010 contacts →

Strong evidence

“Backed by Techstars, Sonnet is an end-to-end meeting assistant, combining a human-quality notetaker with an auto-updating CRM.”

Source: RevenueBase Database · checked Sep 14, 2026
24Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 20261-1010 contacts →

Partial evidence

“Carbon Voice users have fewer calls and meetings while still being able to talk through ideas with their team.”

Source: RevenueBase Database · checked Sep 14, 2026
25Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202611-508 contacts →

Partial evidence

“Ambient is the shared brain for AI-native teams.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 169 AI meeting assistants software companies based in the United States

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AI meeting assistants software companies based in the United States at a glance

As of Sep 14, 2026
29.6%Verified-email coverage
12.0Average contacts per company
1-10Median size (employees)
22.5%Largest-city concentration · San Francisco
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
114
11-50
45
51-200
9
501-1,000
1

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 169 companies.

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 AI meeting assistants software 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 “AI meeting assistants software 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 AI meeting assistants software 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 AI meeting assistants software 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, 599 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 14, 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.

AI meeting assistants software companies by metro

  • AI meeting assistants software companies in San Francisco38

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 AI meeting assistants software 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 AI meeting assistants software companies are there based in the United States?

RevenueBase identified 169 AI meeting assistants software 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?

otter.ai, headquartered in Mountain View, tops this list with the largest team on record.

Which city has the most AI meeting assistants software companies?

San Francisco leads with 38 headquartered companies, followed by New York (18) and Los Angeles (8).

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 599 verified decision-maker contacts tracked across these 169 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 14, 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.