Company lists · Data refreshed November 2026

Top 25 Email marketing optimization agencies worldwide

RevenueBase identified 18,443 company matches for email marketing optimization agencies worldwide as of November 2026 and tracks 117,296 professional contacts across them, including 24,814 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 November 5, 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 Nov 5, 2026 How this list was built
18,443Companies
117,296Contacts tracked
24,814Verified emails
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The 25 largest email marketing optimization agencies worldwide

Ranked by team size
Top 25 of 18,443 company matches for email marketing optimization agencies 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Nov 5, 20265,001-10,0002,407 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchAtlanta, GA, United StatesHQ recorded Nov 5, 20261,001-5,0001,430 contacts →

Exact match

“The Mailchimpossibilities are endless when you create, automate, and optimize your marketing with Mailchimp.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchHarrisburg, PA, United StatesHQ recorded Nov 5, 2026501-1,000906 contacts →

Exact match

“We're here to be your digital marketing growth partner in the AI era.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSan Diego, United StatesHQ recorded Nov 5, 20261,001-5,000897 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 · Nov 5, 2026 · View company records in RevenueBase
5Exact matchUnited StatesHQ recorded Nov 5, 2026n/a564 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchJersey City, NJ, United StatesHQ recorded Nov 5, 2026501-1,000553 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 · Nov 5, 2026 · View company records in RevenueBase
7Exact matchNew York, MS, United StatesHQ recorded Nov 5, 2026501-1,000521 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 · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMumbai, IndiaHQ recorded Nov 5, 2026201-500434 contacts →

Exact match

“Within a short span, eBrandz has seen enormous growth.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchAtlanta, GA, United StatesHQ recorded Nov 5, 2026201-500375 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 · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLincoln, United KingdomHQ recorded Nov 5, 2026201-500375 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 · Nov 5, 2026 · View company records in RevenueBase
11Exact matchHyderabad, IndiaHQ recorded Nov 5, 2026501-1,000373 contacts →

Exact match

“Aptroid Consulting (India) PVT.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMelbourne, AustraliaHQ recorded Nov 5, 2026201-500348 contacts →

Exact match

“When it comes to Digital Marketing, it’s the First Page, or it’s nothing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchAkron, OH, United StatesHQ recorded Nov 5, 2026201-500346 contacts →

Exact match

“At OuterBox, we believe growth is oxygen.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLos Angeles, CA, United StatesHQ recorded Nov 5, 2026201-500332 contacts →

Exact match

“Coalition Technologies is one of the leading SEO & web design agencies in the United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchIrving, NC, United StatesHQ recorded Nov 5, 2026201-500317 contacts →

Exact match

“Targetbase is a precision marketing agency obsessed with performance-our clients’ and our own.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSan Diego, United StatesHQ recorded Nov 5, 202651-200315 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 · Nov 5, 2026 · View company records in RevenueBase
17Exact matchParis, FranceHQ recorded Nov 5, 2026201-500306 contacts →

Exact match

“AB Tasty started when two founders, Alix de Sagazan and Rémi Aubert, struck out on their own with a simple idea: experimentation and personalization should be faster and easier…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchColorado Springs, CO, United StatesHQ recorded Nov 5, 2026201-500279 contacts →

Exact match

“Intero Digital is a leading digital marketing agency with offices across the USA.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Nov 5, 202651-200267 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 · Nov 5, 2026 · View company records in RevenueBase
20Exact matchCorreggio, ItalyHQ recorded Nov 5, 2026201-500265 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 · Nov 5, 2026 · View company records in RevenueBase
21Exact matchNoida, TX, IndiaHQ recorded Nov 5, 2026501-1,000264 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 · Nov 5, 2026 · View company records in RevenueBase
22Exact matchPearland, United StatesHQ recorded Nov 5, 2026201-500236 contacts →

Exact match

“Coozmoo is a Houston-based, AI-powered digital marketing agency with 250+ specialists, trusted by clients since 2019, and focused on one goal: your revenue growth.$280M+ in client…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchPhiladelphia, PA, United StatesHQ recorded Nov 5, 2026n/a222 contacts →

Exact match

“TPG Direct We are experts in multi-channel customer acquisition who help our clients make complex targeting decisions, optimize marketing investment and generate profitable growth.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchSan Jose, CA, United StatesHQ recorded Nov 5, 2026201-500218 contacts →

Exact match

“Tangence accelerates marketing execution for companies more efficiently than in-house teams or other agencies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchCesson-sévigné, FranceHQ recorded Nov 5, 202651-200209 contacts →

Exact match

“MEDIAVEILLE est une agence de conseil et de services de marketing online qui met en œuvre des stratégies de conquête et de fidélisation sur Internet.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 18,443 email marketing optimization agencies worldwide

See the full list, filter by size, metro and specialty, and access 24,814 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 Nov 5, 2026
21.2%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
2.2%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
13,094
11-50
4,423
51-200
678
201-500
122
501-1,000
38
1,001-5,000
19
5,001-10,000
2
10001+
17

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 24,814 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.

Email marketing optimization agencies by location

97 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 18,443 company matches for email marketing optimization agencies 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?

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 4,090 companies, followed by India (2,483) and the United Kingdom (1,168). 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 400 company records, followed by New York (243) and New Delhi (172).

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 24,814 professional contacts with verified work emails tracked across these 18,443 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.