Company lists · Data refreshed September 2026

Top 25 Outsourced lead generation companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 14,779 companies tracked

RevenueBase identified 14,779 company matches for outsourced lead generation companies worldwide as of September 2026 and tracks 112,107 professional contacts across them, including 12,693 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for outsourced lead generation companies 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 21, 2026. Country and city lists for outsourced lead generation companies 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 21, 2026 How this list was built

14,779Companies

112,107Contacts tracked

12,693Verified emails

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The 25 largest outsourced lead generation companies worldwide

Ranked by team size

Top 25 of 14,779 company matches for outsourced lead generation companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Cience	Exact match	Miami, FL, United StatesHQ recorded Sep 21, 2026	201-500	1,068 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 · Sep 21, 2026 · View company records in RevenueBase
2	S2w Media	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	806 contacts →
	Exact match “We are innovators, problem solvers, thought leaders, and above all else, a team.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Sep 21, 2026	501-1,000	796 contacts →
	Exact match “Em um mercado cada vez mais competitivo, onde a eficiência em vendas massificadas e externas é um desafio constante, a ZAZ Vendas surge como a resposta definitiva.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Manlitics B2B Ites	Exact match	New York, United StatesHQ recorded Sep 21, 2026	501-1,000	750 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 · Sep 21, 2026 · View company records in RevenueBase
5	Salebuild	Exact match	Redwood City, CA, United StatesHQ recorded Sep 21, 2026	n/a	708 contacts →
	Exact match “Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Flexisales INC	Exact match	Las Vegas, NV, United StatesHQ recorded Sep 21, 2026	201-500	697 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 · Sep 21, 2026 · View company records in RevenueBase
7	Girnar Care	Exact match	Jaipur, IndiaHQ recorded Sep 21, 2026	501-1,000	649 contacts →
	Exact match “We at Girnar Care work towards customer satisfaction and it is also a center of customer excellence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Digitalzone	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	558 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 · Sep 21, 2026 · View company records in RevenueBase
9	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Sep 21, 2026	201-500	553 contacts →
	Exact match “From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Movingdneedle Pvt. LTD	Exact match	Sterling Heights, MI, United StatesHQ recorded Sep 21, 2026	51-200	528 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 · Sep 21, 2026 · View company records in RevenueBase
11	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Sep 21, 2026	201-500	499 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 · Sep 21, 2026 · View company records in RevenueBase
12	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Sep 21, 2026	51-200	455 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Qualifa	Exact match	Brighton, United KingdomHQ recorded Sep 21, 2026	51-200	440 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 · Sep 21, 2026 · View company records in RevenueBase
14	Marketone International	Exact match	Waltham, MA, United StatesHQ recorded Sep 21, 2026	201-500	431 contacts →
	Exact match “MarketOne is a global demand generation agency.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Alliance Pdms	Exact match	Hurst, TX, United StatesHQ recorded Sep 21, 2026	51-200	428 contacts →
	Exact match “Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	MVF	Exact match	London, United KingdomHQ recorded Sep 21, 2026	201-500	401 contacts →
	Exact match “MVF powers growth for our clients by connecting them to potential customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Amarketforce	Exact match	San Jose, CA, United StatesHQ recorded Sep 21, 2026	201-500	391 contacts →
	Exact match “aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	The Lead Market	Exact match	Nagpur, IndiaHQ recorded Sep 21, 2026	51-200	387 contacts →
	Exact match “TLM empowers businesses to generate revenue through their qualified leads.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Beyond Codes INC	Exact match	Simi Valley, CA, United StatesHQ recorded Sep 21, 2026	201-500	380 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 · Sep 21, 2026 · View company records in RevenueBase
20	EIMS	Exact match	Bournemouth, United KingdomHQ recorded Sep 21, 2026	501-1,000	369 contacts →
	Exact match “Welcome to EIMS.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Acceligize	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	201-500	349 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Jumpcrew	Exact match	Nashville, TN, United StatesHQ recorded Sep 21, 2026	201-500	339 contacts →
	Exact match “Launch-ready sales teams, experienced leaders, and time-tested processes to help you acquire new customers faster and with less risk than doing it alone.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Inventive SMI	Exact match	IndiaHQ recorded Sep 21, 2026	201-500	339 contacts →
	Exact match “Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Vereigen Media	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	201-500	309 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 · Sep 21, 2026 · View company records in RevenueBase
25	Distinct Digital Media	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 21, 2026	501-1,000	300 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 · Sep 21, 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 “outsourced lead generation companies”. 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 14,779 outsourced lead generation companies worldwide

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Outsourced lead generation companies worldwide at a glance

As of Sep 21, 2026

11.3%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

9,037

11-50

4,222

51-200

1,163

201-500

243

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 outsourced lead generation companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “outsourced lead generation companies” 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 12,693 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 21, 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.

Outsourced lead generation companies by location

61 lists · largest first

Every Outsourced lead generation companies 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 “outsourced lead generation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourced lead generation companies are there worldwide?

RevenueBase identified 14,779 company matches for outsourced lead generation companies 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?

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

Which country has the most outsourced lead generation companies?

The United States leads with 3,668 companies, followed by India (1,498) and the United Kingdom (1,103). Every outsourced lead generation companies list by country and city is linked on this page.

Which city has the most outsourced lead generation companies?

London leads with 378 company records, followed by Pune (374) and New York (187).

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 12,693 professional contacts with verified work emails tracked across these 14,779 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 21, 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.