Company lists · Data refreshed September 2026

Top 25 Engagement automation platform software companies based in Boston, United States

Name: Engagement automation platform software companies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 77 companies tracked

RevenueBase identified 77 engagement automation platform software companies headquartered in Boston, United States as of September 2026 and tracks 6,308 professional contacts across them, including 3,333 with verified work emails. Across the United States, New York is the largest hub for this category (332 companies); Boston has 77.

This list covers engagement automation platform software companies headquartered in Boston, 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

77Companies

6,308Contacts tracked

3,333Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest engagement automation platform software companies based in Boston, United States

Ranked by team size

Top 25 of 77 engagement automation platform software companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to engagement automation platform 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 28, 2026
2	Demandscience	Partial evidence	Boston, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,087 contacts →
	Partial evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 28, 2026
3	Creatio	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	501-1,000	939 contacts →
	Partial evidence “AI CRM and workflow platform where people and AI agents work together, with no limits on users, agents, or scale.” Source: RevenueBase Database · checked Sep 28, 2026
4	Validity INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	345 contacts →
	Partial evidence “Validity created the AI platform behind the world's most successful email programs.” Source: RevenueBase Database · checked Sep 28, 2026
5	NIFT	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	114 contacts →
	Partial evidence “Nift helps platforms and brands turn moments of appreciation into powerful customer experiences and measurable business results.” Source: RevenueBase Database · checked Sep 28, 2026
6	Modo Labs	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Partial evidence “Modo is the world’s leading platform provider of workplace and campus apps.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cloudcall	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	76 contacts →
	Indirect evidence “CloudCall helps recruitment and sales teams connect faster, smarter, and with more context, directly inside their CRM.” Source: RevenueBase Database · checked Sep 28, 2026
8	Appcues	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “Appcues helps customer-centric teams turn user behavior into activation, retention, and expansion without engineering bottlenecks.” Source: RevenueBase Database · checked Sep 28, 2026
9	PRIVY	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	69 contacts →
	Indirect evidence “Email & SMS for online brands that need the tools & coaching to grow sales.” Source: RevenueBase Database · checked Sep 28, 2026
10	Onramp	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	52 contacts →
	Strong evidence “Founded in 2020, OnRamp is the intelligent, AI-enabled customer onboarding and engagement platform that helps companies accelerate adoption, strengthen customer relationships, and…” Source: RevenueBase Database · checked Sep 28, 2026
11	Revotas	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	51 contacts →
	Partial evidence “Revotas is an insights-led customer experience platform trusted by over global consumer brands such as Miele, Beşiktaş, Little Caesars, Toyota, Elite World Hotels and more.” Source: RevenueBase Database · checked Sep 28, 2026
12	Sessionm	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	48 contacts →
	Strong evidence “SessionM is a customer engagement and loyalty platform empowering the world’s most innovative brands to forge stronger and more profitable customer relationships.” Source: RevenueBase Database · checked Sep 28, 2026
13	Perch Insights	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Customer Experience (CX) leaders are constantly in reactive mode, but Perch empowers them with data-driven insights to work proactively, leading to progressively better business…” Source: RevenueBase Database · checked Sep 28, 2026
14	Goldcast	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	41 contacts →
	Partial evidence “Goldcast is a tailored B2B Events Platform that transforms marketing through the effortless hosting of engaging digital and in-person events.” Source: RevenueBase Database · checked Sep 28, 2026
15	Customersai	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “CustomersAI works with brands across the DTC ecosystem, and we’re proud official partners of Klaviyo, Shopify, Meta, and Google.” Source: RevenueBase Database · checked Sep 28, 2026
16	Graph8	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect evidence “graph8 is the autonomous revenue system for B2B teams.” Source: RevenueBase Database · checked Sep 28, 2026
17	Awarex	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “AwareX is the only digital customer engagement solution that enables businesses to build customer loyalty and maximize revenue opportunities - right out of the box.” Source: RevenueBase Database · checked Sep 28, 2026
18	Dataxu	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	23 contacts →
	Indirect evidence “In 2009, dataxu® was founded on the premise that data science could help make marketing better.” Source: RevenueBase Database · checked Sep 28, 2026
19	Firsttouch	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Operationalize Social inside HubSpot and AI agent workflows + reporting dashboards so you can action and report on it, just like email.” Source: RevenueBase Database · checked Sep 28, 2026
20	Cortex	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect evidence “Cortex is for leading marketers who want to create marketing that doesn’t feel like marketing.” Source: RevenueBase Database · checked Sep 28, 2026
21	Customer Portfolios	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Customer Portfolios is a marketing technology leader that empowers its global clients to maximize the value of each customer.” Source: RevenueBase Database · checked Sep 28, 2026
22	Parakeet	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	14 contacts →
	Indirect evidence “Write, test, & send better cold emails with Parakeet Parakeet automates your outbound email campaigns without the spam.” Source: RevenueBase Database · checked Sep 28, 2026
23	Cohora	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Cohora is a customer engagement and analytics platform for ecommerce retention.” Source: RevenueBase Database · checked Sep 28, 2026
24	Faster	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Faster is a business workspace where people and AI use the same tools, permissions, customer context, and review flows to run websites, bookings, payments, follow-up, and growth…” Source: RevenueBase Database · checked Sep 28, 2026
25	Connect NOW INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “In our fast-paced, on-demand world, consumers expect fast solutions in their moment of need.” Source: RevenueBase Database · checked Sep 28, 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: engagement automation platform software 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 engagement automation platform software companies.
Partial evidence: Its own public description names part of engagement automation platform software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engagement automation platform software 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 77 engagement automation platform software companies based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,333 reachable decision-makers.

Free signup · no credit card

View the full list →

Engagement automation platform software companies based in Boston, United States at a glance

As of Sep 28, 2026

52.8%Verified-email coverage

81.9Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 77 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 engagement automation platform 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 Boston, United States whose own description of what they do matches “engagement automation platform 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 engagement automation platform 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 engagement automation platform software companies, and records with no verified work email. Companies headquartered outside Boston 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, 3,333 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.

Engagement automation platform software companies by metro in the United States

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 engagement automation platform 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 engagement automation platform software companies are there based in Boston, United States?

RevenueBase identified 77 engagement automation platform software companies headquartered in Boston, 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?

Klaviyo, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most engagement automation platform software companies?

New York leads the United States with 332 headquartered companies, followed by San Francisco (320) and Austin (137). Boston has 77.

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 3,333 verified decision-maker contacts tracked across these 77 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.

Ready to reach these companies? Verified emails and direct dials for all 77 engagement automation platform software companies based in Boston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Engagement automation platform software companies by geography

Browse the directory

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.