Company lists · Data refreshed September 2026

Top 25 Email marketing optimization agencies based in the United States

Name: Email marketing optimization agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,151 companies tracked

RevenueBase identified 4,151 company matches for email marketing optimization agencies associated with the United States as of September 2026 and tracks 35,316 professional contacts across them, including 11,994 with verified work emails. New York is the largest hub.

This list covers company matches for email marketing optimization agencies associated with the United States, 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.

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

4,151Companies

35,316Contacts tracked

11,994Verified emails

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The 25 largest email marketing optimization agencies based in the United States

Ranked by team size

Top 25 of 4,151 company matches for email marketing optimization agencies based in the United States, 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	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
7	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
8	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
9	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
10	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
11	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
12	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
13	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
14	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
15	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
16	TPG	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	n/a	212 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 · Sep 28, 2026 · View company records in RevenueBase
17	Tangence	Exact match	San Jose, CA, United StatesHQ recorded Sep 28, 2026	201-500	205 contacts →
	Exact match “Tangence accelerates marketing execution for companies more efficiently than in-house teams or other agencies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Internet Marketing Inc. NOW REQ	Exact match	San Diego, CA, United StatesHQ recorded Sep 28, 2026	51-200	203 contacts →
	Exact match “IMI (now REQ) is a full-service digital marketing agency focused on omnichannel strategies and results.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	CUBE	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 28, 2026	51-200	172 contacts →
	Exact match “Designed for growth-focused teams, Cube helps you acquire new customers and retain loyal ones through real-time intelligent automation, competitive tracking, and expert-led…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Stirista	Exact match	San Antonio, TX, United StatesHQ recorded Sep 28, 2026	51-200	163 contacts →
	Exact match “Stirista is the only company that combines data, email, and digital execution to help clients acquire and retain customers by creating a data-driven, repeatable, and scalable…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	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
22	What IF Media Group	Exact match	Fort Lee, NJ, United StatesHQ recorded Sep 28, 2026	51-200	153 contacts →
	Exact match “What If Media Group is an award-winning performance marketing company that enables the world’s leading brands to acquire valuable new customers at scale.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Galactic FED Digital Marketing Agency	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	137 contacts →
	Exact match “Galactic Fed is a full-service digital marketing agency focused on one thing: HELPING BUSINESSES GROW THEIR REVENUE.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	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
25	Mainstreethost	Exact match	Amherst, NY, United StatesHQ recorded Sep 28, 2026	51-200	128 contacts →
	Exact match “Mainstreethost specializes in everything you need to have a successful online presence, including search engine optimization, paid search marketing, website design, social media…” 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 4,151 email marketing optimization agencies based in the United States

See the full list, filter by size, metro and specialty, and access 11,994 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Email marketing optimization agencies based in the United States at a glance

As of Sep 28, 2026

34.0%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

6.0%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,847

11-50

1,043

51-200

192

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,151 companies.

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.
What qualifies: Company records associated with the United States 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 11,994 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 metro

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 based in the United States?

RevenueBase identified 4,151 company matches for email marketing optimization agencies associated with the United States 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 city has the most email marketing optimization agencies?

New York leads with 247 company records, followed by Los Angeles (132) and Austin (92).

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 11,994 professional contacts with verified work emails tracked across these 4,151 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.