Company lists · Data refreshed September 2026

Top 25 Customer advocacy platform companies based in the United States

RevenueBase identified 111 customer advocacy platform companies headquartered in the United States as of September 2026 and tracks 1,096 professional contacts across them, including 334 with verified work emails. San Francisco is the largest hub.

This list covers customer advocacy platform 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 28, 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 28, 2026 86% judged on-target in blind review
111Companies
1,096Contacts tracked
334Verified emails
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The 25 largest customer advocacy platform companies based in the United States

Ranked by team size
Top 25 of 111 customer advocacy platform companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer advocacy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePleasant Grove, UT, United StatesHQ checked Sep 28, 202611-5099 contacts →

Indirect evidence

“Referrals.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-20097 contacts →

Partial evidence

“Fight skyrocketing paid media costs by turning your customers into a primary vehicle for acquisition, awareness, and activation with Extole.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceFolsom, CA, United StatesHQ checked Sep 28, 202611-5083 contacts →

Partial evidence

“The NextBee Engagement Marketing Platform helps businesses run successful referral and loyalty marketing campaigns every day.”

Source: RevenueBase Database · checked Sep 28, 2026
4Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-20063 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 28, 2026
5Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 202651-20060 contacts →

Indirect evidence

“Social Annex is now Annex Cloud.”

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceLehi, UT, United StatesHQ checked Sep 28, 2026n/a50 contacts →

Strong evidence

“Needle, the leader in advocate-powered customer experience, helps businesses bring the power of human connections to e-commerce.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceMilpitas, United StatesHQ checked Sep 28, 202611-5035 contacts →

Partial evidence

“Transform your Employees into Brand Advocates and Expand your Reach Organically, making your Brand more Visible and Trustworthy.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceRemote, United StatesHQ checked Sep 28, 202611-5035 contacts →

Partial evidence

“Cello is the only all-in-one referral platform that lets you launch partner and user referral programs on autopilot.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202611-5034 contacts →

Partial evidence

“At Get The Referral (GTR), we help roofing, remodeling, and home services businesses supercharge their growth with our all-in-one referral marketing platform.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202611-5033 contacts →

Strong evidence

“Unparalleled Experience and Results From the earliest days of customer advocacy in B2B sales and marketing, Big Sky has led the way.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLehi, UT, United StatesHQ checked Sep 28, 202611-5033 contacts →

Indirect evidence

“More Referrals.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 202611-5026 contacts →

Partial evidence

“ShoutOut is the platform powering the next generation of word-of-mouth marketing.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceDenver, CO, United StatesHQ checked Sep 28, 202611-5025 contacts →

Strong evidence

“Since 2003, Point of Reference has been helping companies leverage customer advocates to fuel business growth and fortify brands.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

“Friendbuy is the go-to platform for e-commerce businesses looking to supercharge their growth through referral and loyalty programs.”

Source: RevenueBase Database · checked Sep 28, 2026
15Strong evidenceLos Gatos, CA, United StatesHQ checked Sep 28, 202611-5019 contacts →

Strong evidence

“Referential is a global leader in customer advocacy, marketing, and reference management.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-1017 contacts →

Partial evidence

“SoundGTM is a partner program platform for the one person running the whole thing on a spreadsheet, a CRM that half-works, and willpower.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceAlexandria, VA, United StatesHQ checked Sep 28, 202611-5015 contacts →

Indirect evidence

“Turn your biggest fans into one of your best acquisition channels!”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 28, 202611-5014 contacts →

Partial evidence

“We specialize in fostering Customer-Driven Sales.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5013 contacts →

Strong evidence

“One Click Politics is the leading online advocacy software platform in the United States, Canada, and Australia.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceArlington, VA, United StatesHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“Speak4 is the simple, powerful solution to take your advocacy to the next level.”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 202611-5012 contacts →

Strong evidence

“SlapFive is the first Customer Marketing & Advocacy Software platform for driving Customer-Led Growth.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5010 contacts →

Strong evidence

“Peerbound is the AI‑native customer proof platform that helps you centralize all customer proof (case studies, testimonials, reviews), uncover advocates and actionable insights in…”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceAustin, TX, United StatesHQ checked Sep 28, 20261-1010 contacts →

Strong evidence

“Salesgroup AI provides AI-powered customer service and reviews platform for your business designed to help you boost sales, collect feedback and improve overall customer…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“CiviClick is a fresh approach to public affairs technology.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceMechanicsburg, PA, United StatesHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“Turning Happy Customers Into Your Biggest Promoters Social Booster • Reputation Builder • Referral Generator Snap21 provides a simple, automated process to personalize and amplify…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 111 customer advocacy platform companies based in the United States

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Customer advocacy platform companies based in the United States at a glance

As of Sep 28, 2026
30.5%Verified-email coverage
9.9Average contacts per company
1-10Median size (employees)
9.0%Largest-city concentration · San Francisco
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
43
51-200
5
201-500
2
1,001-5,000
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 111 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 customer advocacy 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 the United States whose own description of what they do matches “customer advocacy 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 advocacy 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 advocacy platform 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, 334 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 28, 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 customer advocacy 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 advocacy platform companies are there based in the United States?

RevenueBase identified 111 customer advocacy platform 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?

Snoball, headquartered in Pleasant Grove, tops this list with the largest team on record.

Which city has the most customer advocacy platform companies?

San Francisco leads with 10 headquartered companies, followed by New York (7) and Austin (6).

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 334 verified decision-maker contacts tracked across these 111 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 28, 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.