Company lists · Data refreshed September 2026

Top 25 Email marketing optimization agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 18,396 companies tracked

RevenueBase identified 18,396 company matches for email marketing optimization agencies worldwide as of September 2026 and tracks 117,383 professional contacts across them, including 25,700 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for email marketing optimization agencies 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 September 28, 2026. Country and city lists for email marketing optimization agencies 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 Sep 28, 2026 How this list was built

18,396Companies

117,383Contacts tracked

25,700Verified emails

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The 25 largest email marketing optimization agencies worldwide

Ranked by team size

Top 25 of 18,396 company matches for email marketing optimization agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Kinesso	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	5,001-10,000	2,860 contacts →
	Exact match “KINESSO is the technology-driven performance marketing agency within Omnicom Media that provides actionable growth for both agency partners and clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Intuit Mailchimp	Exact match	Atlanta, GA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,483 contacts →
	Exact match “The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	WEBFX	Exact match	Harrisburg, PA, United StatesHQ recorded Sep 28, 2026	501-1,000	866 contacts →
	Exact match “We're here to be your digital marketing growth partner in the AI era.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	NP Digital	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	866 contacts →
	Exact match “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Iquanti	Exact match	Jersey City, NJ, United StatesHQ recorded Sep 28, 2026	501-1,000	538 contacts →
	Exact match “iQuanti was founded to deliver on the promise of high-performance digital marketing, combining deep analytics, proprietary technology, and a results-driven approach.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Smart Solutions	Exact match	United StatesHQ recorded Sep 28, 2026	n/a	534 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Amsive	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	488 contacts →
	Exact match “Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Sg360	Exact match	Wheeling, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	477 contacts →
	Exact match “sg360° can help you identify and connect with your best prospects 1:1, both offline and on.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Ebrandz LLP	Exact match	Mumbai, IndiaHQ recorded Sep 28, 2026	201-500	428 contacts →
	Exact match “Within a short span, eBrandz has seen enormous growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Hansa Cequity	Exact match	Kurla (w), IndiaHQ recorded Sep 28, 2026	201-500	415 contacts →
	Exact match “Hansa Cequity is a data-driven, technology-enabled marketing consulting company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Promodo Digital Agency	Exact match	Lincoln, United KingdomHQ recorded Sep 28, 2026	201-500	383 contacts →
	Exact match “Promodo is an award-winning performance marketing agency and a reliable partner for driving measurable results in eCommerce.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Aptroid Consulting India Pvt. LTD	Exact match	Hyderabad, IndiaHQ recorded Sep 28, 2026	501-1,000	354 contacts →
	Exact match “Aptroid Consulting (India) PVT.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Acadia	Exact match	Atlanta, GA, United StatesHQ recorded Sep 28, 2026	201-500	340 contacts →
	Exact match “We are a trusted growth marketing agency that brings together scarce skills in the area of CRO (conversion rate optimization), Paid Media (Search, Performance, Video, Audio…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	AB Tasty	Exact match	Paris, FranceHQ recorded Sep 28, 2026	201-500	334 contacts →
	Exact match “At AB Tasty, we’re your partner for pushing great ideas even further through optimization.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	First Page	Exact match	Melbourne, United StatesHQ recorded Sep 28, 2026	201-500	332 contacts →
	Exact match “When it comes to Digital Marketing, it’s the First Page, or it’s nothing.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Coalition Technologies	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 28, 2026	201-500	320 contacts →
	Exact match “Coalition Technologies is one of the leading SEO & web design agencies in the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Targetbase	Exact match	Irving, TX, United StatesHQ recorded Sep 28, 2026	201-500	315 contacts →
	Exact match “Targetbase is a precision marketing agency obsessed with performance-our clients’ and our own.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Pacific	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	308 contacts →
	Exact match “We are a global growth marketing agency specializing in supporting enterprise brands, like Expedia, Petco, CVS, Square, Realtor, and more.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Listrak	Exact match	Lititz, PA, United StatesHQ recorded Sep 28, 2026	201-500	295 contacts →
	Exact match “Listrak is the person-first marketing automation platform that seamlessly integrates data, identity, and cross-channel messaging to power hyper-personalized customer experiences.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Intero Digital	Exact match	Colorado Springs, UT, United StatesHQ recorded Sep 28, 2026	201-500	268 contacts →
	Exact match “Intero Digital is a leading digital marketing agency with offices across the USA.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Adsrole	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	501-1,000	259 contacts →
	Exact match “AdsRole is a results-driven digital marketing company that helps businesses grow through smart advertising and proven growth strategies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Elogia	Exact match	Barcelona, SpainHQ recorded Sep 28, 2026	51-200	256 contacts →
	Exact match “ELOGIA, a VIKO Group Company, is a digital agency specialized in "Digital Commerce Marketing", We help our clients to use the digital media to sell more.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Outerbox	Exact match	Akron, OH, United StatesHQ recorded Sep 28, 2026	201-500	254 contacts →
	Exact match “At OuterBox, we believe growth is oxygen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Webranking	Exact match	Correggio, ItalyHQ recorded Sep 28, 2026	201-500	248 contacts →
	Exact match “We are a performance-focused digital agency committed to efficiently and transparently driving real growth for major international businesses in an innovative environment, with a…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Coozmoo Digital. Solutions	Exact match	Pearland, TX, United StatesHQ recorded Sep 28, 2026	201-500	234 contacts →
	Exact match “Coozmoo is a Houston-based, AI-powered digital marketing agency with 250+ specialists, 7 years of proven performance, and one goal: your revenue growth.$280M+ in client revenue…” Recorded in the RevenueBase company graph · Sep 28, 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 “email marketing optimization agencies”. 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 18,396 email marketing optimization agencies worldwide

See the full list, filter by size, metro and specialty, and access 25,700 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Email marketing optimization agencies worldwide at a glance

As of Sep 28, 2026

21.9%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

13,036

11-50

4,430

51-200

694

201-500

136

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 email marketing optimization agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “email marketing optimization agencies” 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 25,700 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 September 28, 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.

Email marketing optimization agencies by location

94 lists · largest first

Every Email marketing optimization 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 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 “email marketing optimization agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many email marketing optimization agencies are there worldwide?

RevenueBase identified 18,396 company matches for email marketing optimization agencies worldwide as of September 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?

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

Which country has the most email marketing optimization agencies?

The United States leads with 4,151 companies, followed by India (2,404) and the United Kingdom (1,167). Every email marketing optimization agencies list by country and city is linked on this page.

Which city has the most email marketing optimization agencies?

London leads with 404 company records, followed by New York (225) and Pune (175).

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 25,700 professional contacts with verified work emails tracked across these 18,396 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 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 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.