Company lists · Data refreshed September 2026

Top 25 Email marketing lead generation services based in the United States

Name: Email marketing lead generation services 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 4,677 companies tracked

RevenueBase identified 4,677 email marketing lead generation services headquartered in the United States as of September 2026 and tracks 51,976 professional contacts across them, including 11,152 with verified work emails. New York is the largest hub.

This list covers email marketing lead generation services headquartered in the United States, 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 28, 2026.

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 28, 2026 86% judged on-target in blind review

4,677Companies

51,976Contacts tracked

11,152Verified emails

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The 25 largest email marketing lead generation services based in the United States

Ranked by team size

Top 25 of 4,677 email marketing lead generation services based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to email marketing lead generation services: 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	Zoominfo	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,029 contacts →
	Indirect evidence “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Source: RevenueBase Database · checked Sep 28, 2026
2	Intuit Mailchimp	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 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 28, 2026
3	Data Axle	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,088 contacts →
	Partial evidence “Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs” Source: RevenueBase Database · checked Sep 28, 2026
4	Demandscience	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,087 contacts →
	Indirect evidence “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Source: RevenueBase Database · checked Sep 28, 2026
5	Cience	Strong evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	1,068 contacts →
	Strong evidence “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Source: RevenueBase Database · checked Sep 28, 2026
6	Manlitics B2B Ites	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	501-1,000	750 contacts →
	Partial evidence “In an ERA of new and emerging digital mediums, we align our core expertise of today’s ever-changing technology with a clear understanding of traditional marketing methods without…” Source: RevenueBase Database · checked Sep 28, 2026
7	Anteriad	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	740 contacts →
	Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 28, 2026
8	Salebuild	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 28, 2026	n/a	708 contacts →
	Partial evidence “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Source: RevenueBase Database · checked Sep 28, 2026
9	Flexisales INC	Strong evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	201-500	697 contacts →
	Strong evidence “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
10	Digitalzone	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	558 contacts →
	Strong evidence “Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.” Source: RevenueBase Database · checked Sep 28, 2026
11	SGT	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	557 contacts →
	Strong evidence “After almost 2 years driving internal demand at one of Omnicom's lead Marketing strategy agencies I have returned to Lead to Market to lead our applied marketing practice.” Source: RevenueBase Database · checked Sep 28, 2026
12	Movingdneedle Pvt. LTD	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 28, 2026	51-200	528 contacts →
	Strong evidence “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Source: RevenueBase Database · checked Sep 28, 2026
13	Callbox INC	Strong evidence	Encino, CA, United StatesHQ checked Sep 28, 2026	201-500	499 contacts →
	Strong evidence “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Source: RevenueBase Database · checked Sep 28, 2026
14	Sg360	Indirect evidence	Wheeling, IL, United StatesHQ checked Sep 28, 2026	501-1,000	477 contacts →
	Indirect evidence “sg360° can help you identify and connect with your best prospects 1:1, both offline and on.” Source: RevenueBase Database · checked Sep 28, 2026
15	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
16	Marketone International	Partial evidence	Waltham, MA, United StatesHQ checked Sep 28, 2026	201-500	431 contacts →
	Partial evidence “MarketOne is a global demand generation agency.” Source: RevenueBase Database · checked Sep 28, 2026
17	Amarketforce	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	201-500	391 contacts →
	Partial evidence “aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.” Source: RevenueBase Database · checked Sep 28, 2026
18	Acceligize	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	349 contacts →
	Strong evidence “Acceligize is a global B2B marketing company, providing full funnel lead generation and content marketing solutions to some of the world’s finest technology companies, media…” Source: RevenueBase Database · checked Sep 28, 2026
19	marketing.com	Partial evidence	Eureka, MO, United StatesHQ checked Sep 28, 2026	1,001-5,000	309 contacts →
	Partial evidence “From click to print and everything in between, we’re not changing marketing, just how it’s done.” Source: RevenueBase Database · checked Sep 28, 2026
20	Vereigen Media	Strong evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	309 contacts →
	Strong evidence “Vereigen Media is a U.S-based B2B demand generation company that supports organizations connect with data-driven lead generation and audience engagement solutions.” Source: RevenueBase Database · checked Sep 28, 2026
21	Unboundb2b	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	201-500	297 contacts →
	Partial evidence “UnboundB2B is a marketing agency that caters to Enterprise and Technology companies across the globe to improve ROI on their marketing spend and shorten sales cycle with its…” Source: RevenueBase Database · checked Sep 28, 2026
22	Lakeb2b	Indirect evidence	Dover, DE, United StatesHQ checked Sep 28, 2026	1,001-5,000	232 contacts →
	Indirect evidence “Data-Driven Growth Services That Deliver LakeB2B helps B2B brands scale smarter - with pre-packaged data, full-funnel campaign support, and high-converting creative solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Position	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	51-200	225 contacts →
	Partial evidence “Position² is a fast-growing Demand Generation company, venture backed by Accel Partners.” Source: RevenueBase Database · checked Sep 28, 2026
24	instantly.ai	Indirect evidence	Sheridan, WY, United StatesHQ checked Sep 28, 2026	51-200	215 contacts →
	Indirect evidence “All-in-one outreach platform for business growth.” Source: RevenueBase Database · checked Sep 28, 2026
25	Quantum 3 Media	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	51-200	204 contacts →
	Strong evidence “Quantum 3 Media is one of the fastest growing organizations within the customer acquisition, lead generation/Pay per call within all verticals of insurance and education, contact…” Source: RevenueBase Database · checked Sep 28, 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: email marketing lead generation services. 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 email marketing lead generation services.
Partial evidence: Its own public description names part of email marketing lead generation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name email marketing lead generation services. 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 4,677 email marketing lead generation services based in the United States

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Email marketing lead generation services based in the United States at a glance

As of Sep 28, 2026

21.5%Verified-email coverage

11.1Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,854

11-50

1,296

51-200

391

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 4,677 companies.

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 email marketing lead generation services, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “email marketing lead generation services”. 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 email marketing lead generation services), 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 email marketing lead generation services, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 11,152 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 28, 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.

Email marketing lead generation services by metro

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 email marketing lead generation services, 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 email marketing lead generation services are there based in the United States?

RevenueBase identified 4,677 email marketing lead generation services headquartered in the United States 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?

Zoominfo, headquartered in Vancouver, tops this list with the largest team on record.

Which city has the most email marketing lead generation services?

New York leads with 228 headquartered companies, followed by Los Angeles (121) and Miami (103).

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 11,152 verified decision-maker contacts tracked across these 4,677 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 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 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.