Company lists · Data refreshed November 2026

Top 25 Sales engagement platform developers worldwide

Name: Sales engagement platform developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 5,508 companies tracked

RevenueBase identified 5,508 company matches for sales engagement platform developers worldwide as of November 2026 and tracks 88,907 professional contacts across them, including 31,530 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sales engagement platform developers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for sales engagement platform developers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

5,508Companies

88,907Contacts tracked

31,530Verified emails

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The 25 largest sales engagement platform developers worldwide

Ranked by team size

Top 25 of 5,508 company matches for sales engagement platform developers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Hubspot	Exact match	Cambridge, United StatesHQ recorded Nov 5, 2026	5,001-10,000	11,646 contacts →
	Exact match “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Twilio	Exact match	San Francisco, United StatesHQ recorded Nov 5, 2026	5,001-10,000	6,595 contacts →
	Exact match “Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Klaviyo	Exact match	Boston, MA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,980 contacts →
	Exact match “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Marketstar	Exact match	Ogden, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,619 contacts →
	Exact match “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	6sense	Exact match	San Francisco, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,492 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Seismic	Exact match	San Diego, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,465 contacts →
	Exact match “Seismic is the global leader in enablement, helping organizations engage customers, enable teams, and ignite revenue growth.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Leadsquared	Exact match	Bangalore, IndiaHQ recorded Nov 5, 2026	501-1,000	1,261 contacts →
	Exact match “LeadSquared is an AI-powered platform that unites sales, marketing, field, and service teams to automate workflows and drive outcomes at scale.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	CLAY	Exact match	New York, NY, United StatesHQ recorded Nov 5, 2026	201-500	1,191 contacts →
	Exact match “The creative tool for growth \| Go to market with unique data - and the ability to act on it” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	apollo.io	Exact match	San Francisco, CA, United StatesHQ recorded Nov 5, 2026	501-1,000	1,156 contacts →
	Exact match “Apollo is the AI GTM System that uniquely combines data, intelligence, and execution in one loop, helping every business find and win their next customer.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Cience	Exact match	Miami, FL, United StatesHQ recorded Nov 5, 2026	201-500	1,120 contacts →
	Exact match “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Pipedrive	Exact match	New York, NY, United StatesHQ recorded Nov 5, 2026	501-1,000	998 contacts →
	Exact match “Founded in 2010, Pipedrive is an easy and effective sales CRM that drives small business growth.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Highspot	Exact match	Seattle, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	914 contacts →
	Exact match “Highspot by Seismic is an AI platform for revenue execution that helps go-to-market teams turn intelligence into action.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Vendasta	Exact match	Saskatoon, SK, CanadaHQ recorded Nov 5, 2026	501-1,000	765 contacts →
	Exact match “Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Memoryblue	Exact match	Tysons, VA, United StatesHQ recorded Nov 5, 2026	501-1,000	741 contacts →
	Exact match “memoryBlue is the go-to partner for revenue leaders in B2B Tech looking to grow their pipeline engine.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Emarsys	Exact match	Vienna, AustriaHQ recorded Nov 5, 2026	501-1,000	717 contacts →
	Exact match “SAP Engagement Cloud (formerly SAP Emarsys) helps organizations power unique engagement by connecting real-time customer insights with the operational signals that run the…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Algominds	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	619 contacts →
	Exact match “At Algominds, we build AI agents that find you customers who already want to buy.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Sugarai	Exact match	Denver, United StatesHQ recorded Nov 5, 2026	501-1,000	594 contacts →
	Exact match “SugarAI: the CRM that actually helps sellers sell.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Nov 5, 2026	201-500	580 contacts →
	Exact match “From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Adobe Marketo	Exact match	San Jose, GA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	573 contacts →
	Exact match “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	On24	Exact match	San Francisco, CA, United StatesHQ recorded Nov 5, 2026	501-1,000	543 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Infoanalytica, INC	Exact match	San Jose, United StatesHQ recorded Nov 5, 2026	201-500	490 contacts →
	Exact match “InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Smarte	Exact match	Sunnyvale, United StatesHQ recorded Nov 5, 2026	51-200	487 contacts →
	Exact match “At SMARTe, we understand the challenges faced by revenue-generating teams.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Nov 5, 2026	51-200	448 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	NOOKS	Exact match	San Francisco, CA, United StatesHQ recorded Nov 5, 2026	51-200	426 contacts →
	Exact match “Nooks is the Agent Workspace for intelligent outbound.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Lime Technologies	Exact match	Lund, SwedenHQ recorded Nov 5, 2026	201-500	421 contacts →
	Exact match “Lime is the Customer Journey platform that helps companies make their customers fall in love with them.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sales engagement platform developers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,508 sales engagement platform developers worldwide

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Sales engagement platform developers worldwide at a glance

As of Nov 5, 2026

35.5%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

3.3%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

3,489

11-50

1,552

51-200

348

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for sales engagement platform developers are linked below.
What qualifies: Company records worldwide whose business descriptions match “sales engagement platform developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 31,530 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Sales engagement platform developers by location

36 lists · largest first

Every Sales engagement platform developers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sales engagement platform developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sales engagement platform developers are there worldwide?

RevenueBase identified 5,508 company matches for sales engagement platform developers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Hubspot tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most sales engagement platform developers?

The United States leads with 1,562 companies, followed by India (427) and the United Kingdom (317). Every sales engagement platform developers list by country and city is linked on this page.

Which city has the most sales engagement platform developers?

London leads with 183 company records, followed by San Francisco (141) and New York (123).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31,530 professional contacts with verified work emails tracked across these 5,508 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.