Company lists · Data refreshed November 2026

Top 25 Online lead generation agencies worldwide

Name: Online lead generation agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 17,230 companies tracked

RevenueBase identified 17,230 company matches for online lead generation agencies worldwide as of November 2026 and tracks 101,758 professional contacts across them, including 15,420 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for online lead generation 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 online lead generation 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

17,230Companies

101,758Contacts tracked

15,420Verified emails

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The 25 largest online lead generation agencies worldwide

Ranked by team size

Top 25 of 17,230 company matches for online lead generation 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Localiq	Exact match	New York, NY, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,550 contacts →
	Exact match “Grow your business with digital marketing powered by AI and local expertise.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Centerfield	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,168 contacts →
	Exact match “Super-powered customer acquisition.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Cience	Exact match	Miami, FL, United StatesHQ recorded Nov 5, 2026	201-500	1,120 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Flexisales INC	Exact match	Las Vegas, NV, United StatesHQ recorded Nov 5, 2026	201-500	736 contacts →
	Exact match “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Manlitics B2B Ites	Exact match	New York, United StatesHQ recorded Nov 5, 2026	501-1,000	729 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Digitalzone	Exact match	New York, United StatesHQ recorded Nov 5, 2026	501-1,000	563 contacts →
	Exact match “Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Movingdneedle Pvt. LTD	Exact match	Sterling Heights, United StatesHQ recorded Nov 5, 2026	51-200	530 contacts →
	Exact match “movingDneedle is a Business to Business Sales Lead Generation Company that provides fast and scalable, sales qualified leads through its unique Personalized Email Marketing…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Nov 5, 2026	201-500	528 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Qualifa	Exact match	Brighton, United KingdomHQ recorded Nov 5, 2026	51-200	453 contacts →
	Exact match “We are an award winning multilingual lead generation and market research service provider for B2B publishing, marketing, events and tech companies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Nov 5, 2026	51-200	448 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	MVF	Exact match	London, United KingdomHQ recorded Nov 5, 2026	201-500	428 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	The Lead Market	Exact match	Nagpur, IndiaHQ recorded Nov 5, 2026	51-200	421 contacts →
	Exact match “TLM empowers businesses to generate revenue through their qualified leads.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Localedge	Exact match	Buffalo, NY, United StatesHQ recorded Nov 5, 2026	501-1,000	401 contacts →
	Exact match “LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Beyond Codes INC	Exact match	Simi Valley, United StatesHQ recorded Nov 5, 2026	201-500	376 contacts →
	Exact match “Beyond Codes is a global B2B lead generation and appointment-setting agency trusted by some of the world's leading technology companies to build enterprise sales pipeline.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Callrail	Exact match	Atlanta, GA, United StatesHQ recorded Nov 5, 2026	201-500	351 contacts →
	Exact match “CallRail is the lead engagement platform that makes it easy for businesses to attract more leads, convert more customers, and optimize their marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Vereigen Media	Exact match	Austin, United StatesHQ recorded Nov 5, 2026	201-500	335 contacts →
	Exact match “Vereigen Media is a U.S-based B2B demand generation company that supports organizations connect with data-driven lead generation and audience engagement solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Lahaus	Exact match	Medellín, ColombiaHQ recorded Nov 5, 2026	51-200	312 contacts →
	Exact match “We fill your calendar with appointments with people who can actually buy.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Distinct Digital Media	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 5, 2026	501-1,000	309 contacts →
	Exact match “Distinct Digital Media assists both small and large organizations in reaching their maximum potential by connecting them with their target audience at the optimum time and place.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	TSL Marketing	Exact match	Elkridge, MD, United StatesHQ recorded Nov 5, 2026	201-500	258 contacts →
	Exact match “TSL Marketing provides lead generation, SEO, Website, Content, Channel Marketing and HubSpot agency services to MSPs, IT companies, IT Services firms, and SaaS firms.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	leads.io	Exact match	Hoorn, NetherlandsHQ recorded Nov 5, 2026	201-500	238 contacts →
	Exact match “Leads.io is the World’s Leading AI-Powered Lead Generation Agency, founded on a performance-based pay-per-lead model.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	GROW	Exact match	Jerusalem, IsraelHQ recorded Nov 5, 2026	n/a	238 contacts →
	Exact match “GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Only B2B Lead Generation & Marketing	Exact match	Pune, IndiaHQ recorded Nov 5, 2026	201-500	225 contacts →
	Exact match “We are Only B2B – Your reliable growth partner!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Interlink	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	218 contacts →
	Exact match “We help our clients supercharge their sales.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Account Media	Exact match	London, United KingdomHQ recorded Nov 5, 2026	51-200	214 contacts →
	Exact match “We work exclusively with B2B publishers and lead gen providers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Herold	Exact match	Vienna, AustriaHQ recorded Nov 5, 2026	51-200	213 contacts →
	Exact match “Seit der Gründung in 1919 hat sich Herold laufend weiterentwickelt und ist heute Teil der group.one, die zu einer der führenden Unternehmensgruppen in Europa im Bereich Domains…” Recorded in the RevenueBase company graph · Nov 5, 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 “online lead generation 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 17,230 online lead generation agencies worldwide

See the full list, filter by size, metro and specialty, and access 15,420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Online lead generation agencies worldwide at a glance

As of Nov 5, 2026

15.2%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11,860

11-50

4,230

51-200

870

201-500

170

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 online lead generation agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “online lead generation 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 15,420 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.

Online lead generation agencies by location

79 lists · largest first

Every Online lead generation 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 “online lead generation agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online lead generation agencies are there worldwide?

RevenueBase identified 17,230 company matches for online lead generation 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?

Localiq tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most online lead generation agencies?

The United States leads with 4,583 companies, followed by India (1,825) and the United Kingdom (1,176). Every online lead generation agencies list by country and city is linked on this page.

Which city has the most online lead generation agencies?

London leads with 391 company records, followed by Pune (326) and New York (203).

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 15,420 professional contacts with verified work emails tracked across these 17,230 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.