Company lists · Data refreshed September 2026

Top 14 Omnichannel customer service platforms based in San Francisco, United States

RevenueBase identified 26 omnichannel customer service platforms headquartered in San Francisco, United States as of September 2026 and tracks 11,869 professional contacts across them, including 4,111 with verified work emails. Across the United States, San Francisco is the largest hub for this category.

This list covers omnichannel customer service platforms headquartered in San Francisco, 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 29, 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 29, 2026 86% judged on-target in blind review
26Companies
11,869Contacts tracked
4,111Verified emails
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The 14 largest omnichannel customer service platforms based in San Francisco, United States

Ranked by team size
Top 14 of 26 omnichannel customer service platforms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to omnichannel customer service 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20265,001-10,0006,047 contacts →

Strong evidence

“Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026n/a2,026 contacts →

Partial evidence

“Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261,001-5,0001,444 contacts →

Partial evidence

“We’re Intercom, the AI customer service company helping businesses deliver incredible customer experiences at scale.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261,001-5,0001,316 contacts →

Strong evidence

“Talkdesk® is leading a new era in customer experience with Customer Experience Automation (CXA)-a new category and platform designed to automate the full complexity of modern…”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500286 contacts →

Partial evidence

“UJET is the Experience Center: a cloud-native platform that replaces the fragmented contact center stack.”

Source: RevenueBase Database · checked Sep 29, 2026
6Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026501-1,000187 contacts →

Strong evidence

“LiveVox (Nasdaq: LVOX) is a proven cloud CCaaS platform that helps business leaders redefine customer engagement and transform their contact center’s performance.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-20099 contacts →

Indirect evidence

“Pylon is the modern alternative to Zendesk, optimized for B2B.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-5058 contacts →

Indirect evidence

“Conversation builds relationship.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-50056 contacts →

Partial evidence

“Acquire equips enterprise teams with the digital tools they need to create the best customer experiences.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceSan Francisco, United StatesHQ checked Sep 29, 202611-5041 contacts →

Strong evidence

“Chatbase is the AI customer support platform for companies that take service seriously.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“AI alone won’t solve your support challenges.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-5018 contacts →

Partial evidence

“Channels is the only app you need to power up your customer service!”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-20013 contacts →

Partial evidence

“Desk.com is the all-in-one customer support app for fast-growing companies.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“New age multi-channel customer support solution for businesses, big and small.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 14 of 26 omnichannel customer service platforms based in San Francisco, United States

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Omnichannel customer service platforms based in San Francisco, United States at a glance

As of Sep 29, 2026
34.6%Verified-email coverage
456.5Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
4
11-50
10
51-200
4
201-500
3
501-1,000
1
1,001-5,000
3
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 26 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 omnichannel customer service 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 San Francisco, United States whose own description of what they do matches “omnichannel customer service 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 omnichannel customer service 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 omnichannel customer service platforms, and records with no verified work email. Companies headquartered outside San Francisco 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, 4,111 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 29, 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 omnichannel customer service 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 omnichannel customer service platforms are there based in San Francisco, United States?

RevenueBase identified 26 omnichannel customer service platforms headquartered in San Francisco, 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?

Twilio, headquartered in San Francisco, tops this list with the largest team on record.

Which city in the United States has the most omnichannel customer service platforms?

San Francisco leads the United States with 26 headquartered companies, followed by New York (22) and Miami (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 4,111 verified decision-maker contacts tracked across these 26 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 29, 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.