Company lists · Data refreshed September 2026

Top 25 AI marketing automation agencies based in Boston, United States

Name: AI marketing automation agencies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 81 companies tracked

RevenueBase identified 81 AI marketing automation agencies headquartered in Boston, United States as of September 2026 and tracks 5,207 professional contacts across them, including 2,564 with verified work emails. New York is the largest hub.

This list covers AI marketing automation agencies 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 16, 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 16, 2026 86% judged on-target in blind review

81Companies

5,207Contacts tracked

2,564Verified emails

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The 25 largest AI marketing automation agencies based in Boston, United States

Ranked by team size

Top 25 of 81 AI marketing automation agencies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to AI marketing automation agencies: 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 16, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 16, 2026
2	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,087 contacts →
	Indirect 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 16, 2026
3	Validity INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 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 16, 2026
4	Blueconic	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	201-500	161 contacts →
	Indirect evidence “BlueConic is the leading Customer Growth Engine, helping brands unlock the full value of their customer data.” Source: RevenueBase Database · checked Sep 16, 2026
5	Rapiddev	Partial evidence	Boston, United StatesHQ checked Sep 16, 2026	51-200	124 contacts →
	Partial evidence “We help companies turn AI strategy into measurable business outcomes.” Source: RevenueBase Database · checked Sep 16, 2026
6	Fuel Online Digital Marketing Agency - SEO Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	51-200	79 contacts →
	Indirect evidence “Fuel Online is the definitive global authority in Generative Engine Optimization (GEO) and high-performance search strategy.” Source: RevenueBase Database · checked Sep 16, 2026
7	CYBBA	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	51-200	63 contacts →
	Indirect evidence “Cybba helps brands turn advertising into measurable business outcomes.” Source: RevenueBase Database · checked Sep 16, 2026
8	Revotas	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	51 contacts →
	Indirect 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 16, 2026
9	Octane Marketing	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	40 contacts →
	Partial evidence “Octane Marketing is a full-service marketing agency that delivers Integrated Marketing Strategies, and technology products that help retail automotive dealerships sell and service…” Source: RevenueBase Database · checked Sep 16, 2026
10	Customersai	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 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 16, 2026
11	Nowspeed Marketing	Strong evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	32 contacts →
	Strong evidence “Nowspeed is an AI-enabled digital marketing agency that helps growth-focused organizations turn marketing spend into measurable pipeline.” Source: RevenueBase Database · checked Sep 16, 2026
12	Awarex	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect 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 16, 2026
13	Dataxu	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	23 contacts →
	Partial evidence “In 2009, dataxu® was founded on the premise that data science could help make marketing better.” Source: RevenueBase Database · checked Sep 16, 2026
14	Convertiv	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial evidence “Convertiv is the marketing agency that delivers for businesses that demand high performance, efficiency and digital (design) excellence.” Source: RevenueBase Database · checked Sep 16, 2026
15	Synapse	Strong evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	16 contacts →
	Strong evidence “Synapse converts marketing spend into business growth through smarter strategy, AI optimization, and performance that speaks for itself.” Source: RevenueBase Database · checked Sep 16, 2026
16	Media Shower	Strong evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	51-200	16 contacts →
	Strong evidence “We’re the leading marketing platform that combines custom AI assistants with our award-winning creative team-to help you do your marketing faster, cheaper, and better.” Source: RevenueBase Database · checked Sep 16, 2026
17	Cortex	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	16 contacts →
	Partial evidence “Cortex is for leading marketers who want to create marketing that doesn’t feel like marketing.” Source: RevenueBase Database · checked Sep 16, 2026
18	Customer Portfolios	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial 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 16, 2026
19	Ideometry	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	10 contacts →
	Partial evidence “Connect with Ideometry, a Boston-based agency that jump-starts your marketing, extends your brand, and builds full-scale campaign strategies that create engagement, generate…” Source: RevenueBase Database · checked Sep 16, 2026
20	Realtop	Partial evidence	Boston, United StatesHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Helping businesses dominate their competition with data-driven digital marketing.” Source: RevenueBase Database · checked Sep 16, 2026
21	Faster	Partial evidence	Boston, United StatesHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial 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 16, 2026
22	Demandbright	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence “DEMANDBRIGHT is a modern growth accelerator for marketers.” Source: RevenueBase Database · checked Sep 16, 2026
23	Charisma 18 SEO Digital Marketing Agency	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “At Charisma 18, we empower wellness and service professionals-like mental health clinics, physical therapists, and consultants-to thrive online.” Source: RevenueBase Database · checked Sep 16, 2026
24	Loop7 Media	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Loop7 Media has a simple vision: to provide 1st class digital marketing services.” Source: RevenueBase Database · checked Sep 16, 2026
25	Traverse Digital Marketing	Partial evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Traverse is a digital marketing agency that helps organizations deliver their message across the right channels, in the right way and at the right time.” Source: RevenueBase Database · checked Sep 16, 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: AI marketing automation agencies. 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 AI marketing automation agencies.
Partial evidence: Its own public description names part of AI marketing automation agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI marketing automation agencies. 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 81 AI marketing automation agencies based in Boston, United States

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AI marketing automation agencies based in Boston, United States at a glance

As of Sep 16, 2026

49.2%Verified-email coverage

64.3Average contacts per company

1-10Median size (employees)

591.4%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 81 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 AI marketing automation agencies, 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 “AI marketing automation agencies”. 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 AI marketing automation agencies), 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 AI marketing automation agencies, 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, 2,564 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 16, 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.

AI marketing automation agencies 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 AI marketing automation agencies, 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 AI marketing automation agencies are there based in Boston, United States?

RevenueBase identified 81 AI marketing automation agencies 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 has the most AI marketing automation agencies?

New York leads with 479 headquartered companies, followed by San Francisco (261) and Miami (236).

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 2,564 verified decision-maker contacts tracked across these 81 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 16, 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.