Company lists · Data refreshed September 2026

Top 25 AI email marketing agencies worldwide

Name: AI email marketing agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 6,307 companies tracked

RevenueBase identified 6,307 AI email marketing agencies worldwide as of September 2026 and tracks 76,065 professional contacts across them, including 21,982 with verified work emails. The United States is the largest market and London the largest hub.

This list covers AI email marketing agencies worldwide, 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 27, 2026. Country and city lists for AI email marketing agencies follow the table.

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 27, 2026 86% judged on-target in blind review

6,307Companies

76,065Contacts tracked

21,982Verified emails

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The 25 largest AI email marketing agencies worldwide

Ranked by team size

Top 25 of 6,307 AI email marketing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to AI email marketing 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 27, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 27, 2026
2	THRYV	Partial evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,412 contacts →
	Partial evidence “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Source: RevenueBase Database · checked Sep 27, 2026
3	Denave	Partial evidence	Noida, IndiaHQ checked Sep 27, 2026	5,001-10,000	2,270 contacts →
	Partial evidence “We are revenue AI-X-lerators.” Source: RevenueBase Database · checked Sep 27, 2026
4	BRAZE	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,142 contacts →
	Indirect evidence “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Source: RevenueBase Database · checked Sep 27, 2026
5	Stackadapt	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 27, 2026	1,001-5,000	1,633 contacts →
	Indirect evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 27, 2026
6	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,483 contacts →
	Partial evidence “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Source: RevenueBase Database · checked Sep 27, 2026
7	Netcore	Indirect evidence	Mumbai, IndiaHQ checked Sep 27, 2026	1,001-5,000	1,265 contacts →
	Indirect evidence “Netcore offers a Comprehensive Customer Engagement & Experience Suite that empowers marketers to create personalised customer experiences.” Source: RevenueBase Database · checked Sep 27, 2026
8	Insider	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 27, 2026	1,001-5,000	1,036 contacts →
	Indirect evidence “Insider-one platform for individualized, cross-channel experiences-enables enterprise marketers to connect customer data across channels and systems, predict their future behavior…” Source: RevenueBase Database · checked Sep 27, 2026
9	Quadcubes	Partial evidence	Kozhikode, IndiaHQ checked Sep 27, 2026	n/a	989 contacts →
	Partial evidence “We're not that yet another, ordinary marketing agency!” Source: RevenueBase Database · checked Sep 27, 2026
10	Moengage	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	908 contacts →
	Indirect evidence “MoEngage is an agentic customer engagement platform for the customer-obsessed marketers and product owners.” Source: RevenueBase Database · checked Sep 27, 2026
11	Activecampaign	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	863 contacts →
	Strong evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 27, 2026
12	Marigold	Partial evidence	Nashville, TN, United StatesHQ checked Sep 27, 2026	201-500	820 contacts →
	Partial evidence “Marigold is a global marketing technology company focused on delivering relationship marketing solutions for growing organizations.” Source: RevenueBase Database · checked Sep 27, 2026
13	Iterable	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	771 contacts →
	Partial 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 27, 2026
14	Vendasta	Partial evidence	Saskatoon, SK, CanadaHQ checked Sep 27, 2026	501-1,000	771 contacts →
	Partial evidence “Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.” Source: RevenueBase Database · checked Sep 27, 2026
15	Clevertap	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	702 contacts →
	Indirect evidence “CleverTap is the leading all-in-one customer engagement platform that helps brands unlock limitless customer lifetime value.” Source: RevenueBase Database · checked Sep 27, 2026
16	Movable INK	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	672 contacts →
	Strong evidence “Movable Ink helps marketers create more relevant customer experiences across email, mobile, and web through data activation, AI-powered decisioning, and personalization at scale.” Source: RevenueBase Database · checked Sep 27, 2026
17	On24	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	501-1,000	622 contacts →
	Partial 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 27, 2026
18	Adobe Marketo	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	572 contacts →
	Indirect evidence “Adobe Marketo Engage offers the leading Engagement Platform that empowers marketers to build brand value, grow revenue, and prove impact.” Source: RevenueBase Database · checked Sep 27, 2026
19	Acoustic	Indirect evidence	Conway, AR, United StatesHQ checked Sep 27, 2026	501-1,000	539 contacts →
	Indirect evidence “Acoustic, L.P.” Source: RevenueBase Database · checked Sep 27, 2026
20	Wunderkind	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	521 contacts →
	Strong evidence “Wunderkind is pioneering a new category of AI agentic marketing decisioning, where identity meets AI to drive scalable performance across channel.” Source: RevenueBase Database · checked Sep 27, 2026
21	Dotdigital	Partial evidence	London Bridge, United KingdomHQ checked Sep 27, 2026	201-500	491 contacts →
	Partial evidence “Dotdigital is a human-first marketing platform that helps you connect with your customers on the channels they know and love.” Source: RevenueBase Database · checked Sep 27, 2026
22	customer.io	Indirect evidence	Portland, OR, United StatesHQ checked Sep 27, 2026	201-500	446 contacts →
	Indirect evidence “Create personalized customer journeys that engage and convert with our versatile customer engagement platform.” Source: RevenueBase Database · checked Sep 27, 2026
23	Webengage	Partial evidence	Mumbai, IndiaHQ checked Sep 27, 2026	201-500	404 contacts →
	Partial evidence “WebEngage is an advanced Customer Data and Engagement Platform helping consumer brands achieve higher lifetime value and marketing ROI through personalized experiences at scale.” Source: RevenueBase Database · checked Sep 27, 2026
24	MAPP	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	373 contacts →
	Partial evidence “Mapp helps marketers build personalized customer experiences through our SaaS platform, Mapp Marketing Cloud.” Source: RevenueBase Database · checked Sep 27, 2026
25	Invoca	Partial evidence	West Hollywood, CA, United StatesHQ checked Sep 27, 2026	201-500	368 contacts →
	Partial evidence “Invoca is the revenue execution and platform leader that helps marketing, commerce, and contact center teams turn every conversation into revenue.” Source: RevenueBase Database · checked Sep 27, 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 email marketing 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 email marketing agencies.
Partial evidence: Its own public description names part of AI email marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name AI email marketing 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 6,307 AI email marketing agencies worldwide

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AI email marketing agencies worldwide at a glance

As of Sep 27, 2026

28.9%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · London

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

4,335

11-50

1,516

51-200

328

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among AI email marketing 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.
Coverage: Every country. Country and city lists for AI email marketing agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “AI email marketing 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 email marketing 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 email marketing agencies, and records with no verified work email.
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, 21,982 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 27, 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 email marketing agencies by location

32 lists · largest first

Every AI email marketing agencies 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 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 email marketing 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 email marketing agencies are there worldwide?

RevenueBase identified 6,307 AI email marketing agencies worldwide 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 country has the most AI email marketing agencies?

The United States leads with 1,576 companies, followed by India (512) and the United Kingdom (379). Every AI email marketing agencies list by country and city is linked on this page.

Which city has the most AI email marketing agencies?

London leads with 183 headquartered companies, followed by New York (113) and Toronto (71).

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 21,982 verified decision-maker contacts tracked across these 6,307 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 27, 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.