Company lists · Data refreshed September 2026

Top 25 Lead generation automation agencies worldwide

RevenueBase identified 27,256 lead generation automation agencies worldwide as of September 2026 and tracks 170,213 professional contacts across them, including 29,347 with verified work emails. The United States is the largest market and London the largest hub.

This list covers lead generation automation agencies worldwide, 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. Country and city lists for lead generation automation agencies follow the table.

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
27,256Companies
170,213Contacts tracked
29,347Verified emails
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The 25 largest lead generation automation agencies worldwide

Ranked by team size
Top 25 of 27,256 lead generation automation agencies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to lead generation automation agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceVancouver, WA, United StatesHQ checked Sep 28, 20261,001-5,0004,029 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
2Partial evidenceDubai, United Arab EmiratesHQ checked Sep 28, 20261,001-5,0003,498 contacts →

Partial evidence

“At XDBS, we primarily work with media agencies, publishers and marketing companies looking to leverage marketing automation and digital marketing capacity and capability to…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNoida, IndiaHQ checked Sep 28, 20265,001-10,0002,270 contacts →

Indirect evidence

“We are revenue AI-X-lerators.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,0001,483 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261,001-5,0001,443 contacts →

Indirect evidence

“6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidencePalo Alto, CA, United StatesHQ checked Sep 28, 20261,001-5,0001,343 contacts →

Indirect evidence

“Birdeye is the #1 Agentic Marketing Platform for Multi-location Brands, purpose-built for multi-location brands.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceSingaporeHQ checked Sep 28, 20261,001-5,0001,256 contacts →

Indirect evidence

“Verticurl, a division of Ogilvy, was established in 2006 with the mission to be the world’s leading marketing technology services agency for multinational organizations.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceBoston, United StatesHQ checked Sep 28, 20261,001-5,0001,087 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
9Strong evidenceMiami, FL, United StatesHQ checked Sep 28, 2026201-5001,068 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
10Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,000863 contacts →

Indirect evidence

“ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000863 contacts →

Indirect evidence

“Apollo.io is the AI-powered end-to-end go-to-market platform that empowers sales, marketing, and revenue teams to find prospects, engage customers, and close deals with…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000806 contacts →

Indirect evidence

“We are innovators, problem solvers, thought leaders, and above all else, a team.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceNew York, United StatesHQ checked Sep 28, 2026501-1,000750 contacts →

Indirect 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
14Partial evidenceRedwood City, CA, United StatesHQ checked Sep 28, 2026n/a708 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
15Strong evidenceLas Vegas, NV, United StatesHQ checked Sep 28, 2026201-500697 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
16Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000558 contacts →

Partial 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
17Indirect evidenceAthens, GA, IndiaHQ checked Sep 28, 2026201-500553 contacts →

Indirect evidence

“From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceUnited StatesHQ checked Sep 28, 2026n/a534 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceSterling Heights, MI, United StatesHQ checked Sep 28, 202651-200528 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
20Strong evidenceEncino, CA, United StatesHQ checked Sep 28, 2026201-500499 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
21Indirect evidenceDenver, CO, United StatesHQ checked Sep 28, 202651-200455 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceWaltham, MA, United StatesHQ checked Sep 28, 2026201-500431 contacts →

Partial evidence

“MarketOne is a global demand generation agency.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceBerkeley, CA, United StatesHQ checked Sep 28, 2026201-500416 contacts →

Indirect evidence

“LeadGenius helps B2B companies find and reach their next best customers.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500401 contacts →

Indirect evidence

“MVF powers growth for our clients by connecting them to potential customers.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceNagpur, IndiaHQ checked Sep 28, 202651-200387 contacts →

Partial evidence

“TLM empowers businesses to generate revenue through their qualified leads.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 27,256 lead generation automation agencies worldwide

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Lead generation automation agencies worldwide at a glance

As of Sep 28, 2026
17.2%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
19,638
11-50
6,113
51-200
1,149
201-500
215
501-1,000
51
1,001-5,000
32
5,001-10,000
5
10001+
17

Email recency is reported on each country list linked below.

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 lead generation automation agencies, 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.
Coverage
Every country. Country and city lists for lead generation automation agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “lead generation automation agencies”. 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 lead generation automation agencies), 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 lead generation automation agencies, and records with no verified work email.
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, 29,347 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.

Lead generation automation agencies by location

114 lists · largest first

Every Lead generation automation 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 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 lead generation automation agencies, 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 lead generation automation agencies are there worldwide?

RevenueBase identified 27,256 lead generation automation agencies worldwide 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 country has the most lead generation automation agencies?

The United States leads with 6,879 companies, followed by India (2,330) and the United Kingdom (1,694). Every lead generation automation agencies list by country and city is linked on this page.

Which city has the most lead generation automation agencies?

London leads with 681 headquartered companies, followed by Pune (382) and New York (357).

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 29,347 verified decision-maker contacts tracked across these 27,256 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.