Company lists · Data refreshed September 2026

Top 25 Email marketing optimization consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 12,437 companies tracked

RevenueBase identified 12,437 company matches for email marketing optimization consultants worldwide as of September 2026 and tracks 92,627 professional contacts across them, including 12,750 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 consultants 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 consultants 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

12,437Companies

92,627Contacts tracked

12,750Verified emails

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The 25 largest email marketing optimization consultants worldwide

Ranked by team size

Top 25 of 12,437 company matches for email marketing optimization consultants 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	Prefeitura Municipal	Exact match	BrazilHQ recorded Sep 28, 2026	n/a	26,862 contacts →
	Exact match Recorded description not available. 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	SEM	Exact match	Sariyer, TürkiyeHQ recorded Sep 28, 2026	n/a	883 contacts →
	Exact match “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	SEO Discovery Private Limited	Exact match	Mohali, IndiaHQ recorded Sep 28, 2026	201-500	755 contacts →
	Exact match “SEO Discovery is a global leader in next-generation digital marketing services, solutions, and consulting.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	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
6	Fifty-Five	Exact match	Paris, United StatesHQ recorded Sep 28, 2026	201-500	464 contacts →
	Exact match “fifty-five was founded in 2010 by former Google executives who understood and anticipated the potential of data in brands’ marketing strategies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	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
8	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
9	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
10	Elixirr Digital	Exact match	Colchester, United StatesHQ recorded Sep 28, 2026	201-500	311 contacts →
	Exact match “Welcome to Elixirr Digital, where innovative digital marketing, advanced data analytics, cutting-edge technology, and bespoke web design services converge to transform your…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Genxlead	Exact match	Chennai, IndiaHQ recorded Sep 28, 2026	501-1,000	295 contacts →
	Exact match “Genxlead is a dynamic company specializing in comprehensive digital solutions tailored to your business needs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Stratagile	Exact match	SingaporeHQ recorded Sep 28, 2026	201-500	261 contacts →
	Exact match “re)defining digital marketing StratAgile combines technology with your business and marketing needs to provide cutting edge solutions within the online, mobile and social media…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	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
14	Quarry NOW Marketbridge	Exact match	St. Jacobs, ON, CanadaHQ recorded Sep 28, 2026	51-200	248 contacts →
	Exact match “Quarry is now Marketbridge.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Mediaveille - MV Group	Exact match	Cesson-sévigné, FranceHQ recorded Sep 28, 2026	51-200	213 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 · Sep 28, 2026 · View company records in RevenueBase
16	GO Inspire Group	Exact match	Leicester, United KingdomHQ recorded Sep 28, 2026	201-500	210 contacts →
	Exact match “Welcome to Go Inspire - Your Marketing Performance Partner!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Direct Agents	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	51-200	163 contacts →
	Exact match “Direct Agents, celebrating its 23rd year of excellence, is a full-service growth marketing consultancy fueled by a future-focused mindset.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	BAD Marketing	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 28, 2026	51-200	157 contacts →
	Exact match “BAD Marketing is a digital marketing firm dedicated to scaling our client's brands through unique marketing strategies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Icontact	Exact match	Morrisville, NC, United StatesHQ recorded Sep 28, 2026	51-200	137 contacts →
	Exact match “We believe powerful connections propel business growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Conversion	Exact match	Sao Paulo, BrazilHQ recorded Sep 28, 2026	51-200	133 contacts →
	Exact match “Conversion é uma empresa focada em Marketing de Conversões, que desenvolve estratégias para aumentar visibilidade de sites de clientes em mecanismos de busca e converter essa…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Dp6	Exact match	São Paulo, BrazilHQ recorded Sep 28, 2026	51-200	132 contacts →
	Exact match “Líder de tecnologia de marketing e dados da América Latina!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	PDM	Exact match	Alcobendas, SpainHQ recorded Sep 28, 2026	51-200	125 contacts →
	Exact match “Marketing Consulting firm focused on Customer Experience, providing an innovative, omnichannel and technological vision.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Mailerlite	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	51-200	122 contacts →
	Exact match “In 2005, we started as a web design agency, but we soon discovered email marketing and fell in love with it.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Hustler Marketing	Exact match	Barcelona, EstoniaHQ recorded Sep 28, 2026	51-200	112 contacts →
	Exact match “A global Email Marketing Agency to help supercharge #ecommerce revenues with highly specialised #EmailMarketing services Hit us up for a Free Marketing Audit” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	In2 Marketing & Consulting	Exact match	SingaporeHQ recorded Sep 28, 2026	201-500	111 contacts →
	Exact match “The relationships between brands and their audiences have evolved significantly.” 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 consultants”. 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 12,437 email marketing optimization consultants worldwide

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Email marketing optimization consultants worldwide at a glance

As of Sep 28, 2026

13.8%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

9,944

11-50

2,083

51-200

303

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

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 consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “email marketing optimization consultants” 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 12,750 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 consultants by location

71 lists · largest first

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

How many email marketing optimization consultants are there worldwide?

RevenueBase identified 12,437 company matches for email marketing optimization consultants 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?

Prefeitura Municipal 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 consultants?

The United States leads with 3,304 companies, followed by the United Kingdom (804) and India (684). Every email marketing optimization consultants list by country and city is linked on this page.

Which city has the most email marketing optimization consultants?

London leads with 302 company records, followed by New York (160) and Sao Paulo (138).

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 12,750 professional contacts with verified work emails tracked across these 12,437 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.