Company lists · Data refreshed November 2026

Top 25 Sdr outsourcing services worldwide

Name: Sdr outsourcing services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 7,046 companies tracked

RevenueBase identified 7,046 company matches for sdr outsourcing services worldwide as of November 2026 and tracks 85,943 professional contacts across them, including 8,997 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sdr outsourcing services 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 sdr outsourcing services 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

7,046Companies

85,943Contacts tracked

8,997Verified emails

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The 25 largest sdr outsourcing services worldwide

Ranked by team size

Top 25 of 7,046 company matches for sdr outsourcing services 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	Webhelp Enterprise	Exact match	Paris, FranceHQ recorded Nov 5, 2026	10001+	1,824 contacts →
	Exact match “The Concentrix B2B sales practice is here to design, build and run projects for our clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Inelcom, Ingeniería Electrónica Comercial	Exact match	Pozuelo De Alarcón, SpainHQ recorded Nov 5, 2026	1,001-5,000	1,085 contacts →
	Exact match “Specialized services in order to provide to other companies outsourcing for activities, improving its performance and cost.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Servestsa	Exact match	Caracas, VenezuelaHQ recorded Nov 5, 2026	n/a	903 contacts →
	Exact match “Statistics first” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	ZAZ Vendas	Exact match	Campinas, BrazilHQ recorded Nov 5, 2026	501-1,000	874 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 · Nov 5, 2026 · View company records in RevenueBase
5	Memoryblue	Exact match	Tysons, VA, United StatesHQ recorded Nov 5, 2026	501-1,000	741 contacts →
	Exact match “memoryBlue is the go-to partner for revenue leaders in B2B Tech looking to grow their pipeline engine.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Abstrakt Marketing Group	Exact match	St. Louis, MO, United StatesHQ recorded Nov 5, 2026	501-1,000	732 contacts →
	Exact match “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Shore360 INC	Exact match	Clark, PhilippinesHQ recorded Nov 5, 2026	1,001-5,000	593 contacts →
	Exact match “At Shore360, we do offshoring differently.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Telenet Marketing Solutions	Exact match	Athens, GA, IndiaHQ recorded Nov 5, 2026	201-500	580 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 · Nov 5, 2026 · View company records in RevenueBase
9	The Pipeline Group	Exact match	San Jose, CA, United StatesHQ recorded Nov 5, 2026	201-500	530 contacts →
	Exact match “The Pipeline Group helps B2B tech companies scale pipeline fast through our SDR-as-a-Service model.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	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
11	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
12	Alliance Pdms	Exact match	Hurst, TX, United StatesHQ recorded Nov 5, 2026	51-200	443 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 · Nov 5, 2026 · View company records in RevenueBase
13	Hammerjack	Exact match	Sydney, AustraliaHQ recorded Nov 5, 2026	501-1,000	437 contacts →
	Exact match “hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	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
15	EBQ	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	201-500	386 contacts →
	Exact match “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	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
17	Trualliant Business Process Outsourcing INC	Exact match	Iloilo City, PhilippinesHQ recorded Nov 5, 2026	1,001-5,000	355 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Sophi Outsourcing	Exact match	Dumaguete, PhilippinesHQ recorded Nov 5, 2026	201-500	355 contacts →
	Exact match “Founded in 2008, SOPHI is an outsourcing center based in the Philippines.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	FUNNL	Exact match	Philadelphia, United StatesHQ recorded Nov 5, 2026	201-500	344 contacts →
	Exact match “FunnL was built on a revolutionary idea: B2B companies don’t need more leads-they need more qualified sales meetings with decision-makers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Technomine	Exact match	Ahmedabad, IndiaHQ recorded Nov 5, 2026	201-500	327 contacts →
	Exact match “For over a decade, Technomine has been delivering reliable outsourcing solutions to clients across North America, Europe, and the Middle East.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	BDO Solutions	Exact match	Moka, MauritiusHQ recorded Nov 5, 2026	501-1,000	326 contacts →
	Exact match “BDO Solutions is a Business Services & Outsourcing company located in Mauritius and forms part of the international BDO network, which extends across 166 countries and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Calltend INC	Exact match	Los Angeles, United StatesHQ recorded Nov 5, 2026	51-200	317 contacts →
	Exact match “Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	World Connection	Exact match	Boise, ID, United StatesHQ recorded Nov 5, 2026	1,001-5,000	307 contacts →
	Exact match “World Connection helps founder-led, private equity-backed, and growth-stage small to mid-market companies transform customer experience into measurable business outcomes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	By Appointment Only, Inc. BAO	Exact match	Chelmsford, MA, United StatesHQ recorded Nov 5, 2026	201-500	297 contacts →
	Exact match “The market knows us as the leader in appointment setting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Superstaff Outsourcing	Exact match	Makati City, PA, PhilippinesHQ recorded Nov 5, 2026	501-1,000	255 contacts →
	Exact match “SuperStaff is a comprehensive outsourcing solutions provider dedicated to delocalizing your workforce, reimagining your systems and model, and putting cost savings to work to grow…” 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 “sdr outsourcing services”. 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 7,046 sdr outsourcing services worldwide

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Sdr outsourcing services worldwide at a glance

As of Nov 5, 2026

10.5%Verified-email coverage

12.2Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

3,698

11-50

2,298

51-200

754

201-500

187

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 sdr outsourcing services are linked below.
What qualifies: Company records worldwide whose business descriptions match “sdr outsourcing services” 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 8,997 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.

Sdr outsourcing services by location

43 lists · largest first

Every Sdr outsourcing services 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 “sdr outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sdr outsourcing services are there worldwide?

RevenueBase identified 7,046 company matches for sdr outsourcing services 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?

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

Which country has the most sdr outsourcing services?

The United States leads with 1,281 companies, followed by India (747) and the United Kingdom (524). Every sdr outsourcing services list by country and city is linked on this page.

Which city has the most sdr outsourcing services?

London leads with 174 company records, followed by Pune (106) and Paris (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 8,997 professional contacts with verified work emails tracked across these 7,046 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.