Company lists · Data refreshed September 2026

Top 25 Customer engagement platform companies based in San Francisco, United States

Name: Customer engagement platform companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 120 companies tracked

RevenueBase identified 120 customer engagement platform companies headquartered in San Francisco, United States as of September 2026 and tracks 103,359 professional contacts across them, including 67,973 with verified work emails and 33,187 with mobile numbers. New York is the largest hub.

This list covers customer engagement platform companies 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 10, 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 10, 2026 86% judged on-target in blind review

120Companies

103,359Contacts tracked

67,973Verified emails

33,187Mobile numbers

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The 25 largest customer engagement platform companies based in San Francisco, United States

Ranked by team size

Top 25 of 120 customer engagement platform companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to customer engagement platform 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Salesforce	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	10001+	86,470 contacts →
	Strong evidence “We're the #1 AI CRM-where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.” Source: RevenueBase Database · checked Sep 10, 2026
2	Twilio	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	5,001-10,000	6,047 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 10, 2026
3	6sense	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	1,001-5,000	1,443 contacts →
	Partial evidence “6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…” Source: RevenueBase Database · checked Sep 10, 2026
4	Talkdesk	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	1,001-5,000	1,316 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 10, 2026
5	Gainsight	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	1,001-5,000	1,136 contacts →
	Partial evidence “Gainsight is the retention engine behind the world’s most customer-centric companies.” Source: RevenueBase Database · checked Sep 10, 2026
6	Moengage	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	501-1,000	908 contacts →
	Strong evidence “MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.” Source: RevenueBase Database · checked Sep 10, 2026
7	Iterable	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	501-1,000	771 contacts →
	Strong evidence “Iterable is the AI customer engagement platform built for enterprise scale, loved by teams, and trusted by global brands like Priceline, Fabletics, Blockchain, and Box.” Source: RevenueBase Database · checked Sep 10, 2026
8	Clevertap	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	501-1,000	702 contacts →
	Strong evidence “CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.” Source: RevenueBase Database · checked Sep 10, 2026
9	On24	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	501-1,000	622 contacts →
	Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 10, 2026
10	FRONT	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	501-1,000	430 contacts →
	Strong evidence “Front is the customer operations platform built for B2B complexity, keeping every team, tool, and customer conversation in sync so companies can scale without losing connection.” Source: RevenueBase Database · checked Sep 10, 2026
11	advantageclub.ai	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	201-500	334 contacts →
	Strong evidence “A global AI powered engagement and rewards platform with offerings like rewards and recognition, flexible benefits, sales incentives, customer loyalty, wellbeing programs…” Source: RevenueBase Database · checked Sep 10, 2026
12	Airship	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	201-500	294 contacts →
	Strong evidence “Airship is the only mobile-first customer experience platform that empowers brands to build unified cross-channel experiences and AI-powered journeys that deliver measurable…” Source: RevenueBase Database · checked Sep 10, 2026
13	Helpshift	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	287 contacts →
	Strong evidence “Helpshift is an AI-Native Player Engagement Platform designed to maximize Player Lifetime Value (LTV).” Source: RevenueBase Database · checked Sep 10, 2026
14	Gladly	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	201-500	218 contacts →
	Partial evidence “For business leaders who want to get AI right, Gladly is the only customer experience AI that delivers the cost savings you need AND the customer devotion that drives lasting…” Source: RevenueBase Database · checked Sep 10, 2026
15	ZEALS	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	201-500	203 contacts →
	Partial evidence “ZEALS' Social Chat Commerce solutions enables brands to increase and accelerate marketing engagement and conversions on social media.” Source: RevenueBase Database · checked Sep 10, 2026
16	Agentforce Commerce	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	10001+	175 contacts →
	Indirect evidence “The future of business is CRM + AI + Data + Trust.” Source: RevenueBase Database · checked Sep 10, 2026
17	Aktana	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	201-500	164 contacts →
	Strong evidence “Aktana is the leader in intelligent customer engagement for the global life sciences industry.” Source: RevenueBase Database · checked Sep 10, 2026
18	Mailerlite	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	122 contacts →
	Indirect evidence “In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Source: RevenueBase Database · checked Sep 10, 2026
19	Blueshift	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	97 contacts →
	Partial evidence “Blueshift, headquartered in San Francisco, enables brands to automate and personalize engagement across every marketing channel.” Source: RevenueBase Database · checked Sep 10, 2026
20	Leanplum By Clevertap	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	97 contacts →
	Partial evidence “For app-first companies, Leanplum is the only solution that helps personalize and optimize all customer touchpoints, both inside and outside the app.” Source: RevenueBase Database · checked Sep 10, 2026
21	THANX	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	75 contacts →
	Strong evidence “Thanx is the leading loyalty and guest engagement platform built for restaurants.” Source: RevenueBase Database · checked Sep 10, 2026
22	Insightly CRM By Unbounce	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	67 contacts →
	Partial evidence “Insightly, the new breed of CRM, helps modern businesses of all sizes build lifelong customer relationships and grow faster than ever before.” Source: RevenueBase Database · checked Sep 10, 2026
23	Talkable	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	63 contacts →
	Strong evidence “Talkable is the leading referral marketing and customer loyalty platform for ecommerce, powering referral and loyalty programs for 250+ brands and driving over $3B in referral…” Source: RevenueBase Database · checked Sep 10, 2026
24	connectly.ai	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	51-200	59 contacts →
	Strong evidence “Connectly is a global platform that helps brands sell more, build customer loyalty, and deliver efficient support through intelligent conversations, by using the power of WhatsApp…” Source: RevenueBase Database · checked Sep 10, 2026
25	LAYER	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 10, 2026	11-50	58 contacts →
	Indirect evidence “Conversation builds relationship.” Source: RevenueBase Database · checked Sep 10, 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: customer engagement platform companies. 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 customer engagement platform companies.
Partial evidence: Its own public description names part of customer engagement platform companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer engagement platform companies. 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 120 customer engagement platform companies based in San Francisco, United States

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Customer engagement platform companies based in San Francisco, United States at a glance

As of Sep 10, 2026

65.8%Verified-email coverage

32.1%Mobile-number coverage

861.3Average contacts per company

11-50Median size (employees)

130.8%Largest-city concentration · New York

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

61,7190–30

5,81831–60

12861–90

15790–180

151180+

Company record updated

Median 51.0d

00–30

63,96031–60

26,56161–90

6,45090–180

6,388180+

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 customer engagement platform 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 San Francisco, United States whose own description of what they do matches “customer engagement platform 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 customer engagement platform 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 customer engagement platform companies, 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, 67,973 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 10, 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.

Customer engagement platform companies by metro in the United States

Customer engagement platform companies in New York157
Customer engagement platform companies in San Francisco98
Customer engagement platform companies in Boston42
Customer engagement platform companies in Miami41
Customer engagement platform companies in Austin40
Customer engagement platform companies in Los Angeles39
Customer engagement platform companies in Atlanta39

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 customer engagement platform 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 customer engagement platform companies are there based in San Francisco, United States?

RevenueBase identified 120 customer engagement platform companies 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?

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

Which city has the most customer engagement platform companies?

New York leads with 157 headquartered companies, followed by San Francisco (98) and Boston (42).

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 67,973 verified decision-maker contacts tracked across these 120 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 10, 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.