Company lists · Data refreshed September 2026

Top 25 Business development outsourcers based in the United States

Name: Business development outsourcers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 4,350 companies tracked

RevenueBase identified 4,350 business development outsourcers headquartered in the United States as of September 2026 and tracks 55,892 professional contacts across them, including 7,823 with verified work emails. New York is the largest hub.

This list covers business development outsourcers 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 19, 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 19, 2026 86% judged on-target in blind review

4,350Companies

55,892Contacts tracked

7,823Verified emails

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The 25 largest business development outsourcers based in the United States

Ranked by team size

Top 25 of 4,350 business development outsourcers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to business development outsourcers: 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	Marketstar	Indirect evidence	Ogden, UT, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,446 contacts →
	Indirect evidence “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Source: RevenueBase Database · checked Sep 19, 2026
2	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 19, 2026
3	Cience	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	201-500	1,068 contacts →
	Indirect 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 19, 2026
4	Memoryblue	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 19, 2026	501-1,000	825 contacts →
	Indirect evidence “memoryBlue is the go-to partner for revenue leaders in B2B Tech looking to grow their pipeline engine.” Source: RevenueBase Database · checked Sep 19, 2026
5	Salelytics	Indirect evidence	Appleton, WI, United StatesHQ checked Sep 19, 2026	1,001-5,000	776 contacts →
	Indirect evidence “Salelytics is now MarketSource.” Source: RevenueBase Database · checked Sep 19, 2026
6	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 19, 2026	501-1,000	724 contacts →
	Indirect evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 19, 2026
7	Salebuild	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 19, 2026	n/a	708 contacts →
	Indirect 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 19, 2026
8	Flexisales INC	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 19, 2026	201-500	697 contacts →
	Indirect evidence “Flexisales, is a global frontrunner in B2B Lead & Demand Generation and Data Services, serving technology companies & agencies worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
9	Shore Group Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	680 contacts →
	Indirect evidence “Shore Group eliminates manual, repetitive operations so small and mid-sized businesses can scale with confidence, without adding headcount or complexity.” Source: RevenueBase Database · checked Sep 19, 2026
10	Infinity	Indirect evidence	Cedar Rapids, IA, United StatesHQ checked Sep 19, 2026	501-1,000	609 contacts →
	Indirect evidence “Infinity is an award-winning inside sales agency and consulting firm with 30 years of experience helping B2B companies maximize sales and drive revenue.” Source: RevenueBase Database · checked Sep 19, 2026
11	Movingdneedle Pvt. LTD	Indirect evidence	Sterling Heights, MI, United StatesHQ checked Sep 19, 2026	51-200	528 contacts →
	Indirect 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 19, 2026
12	Callbox INC	Indirect evidence	Encino, CA, United StatesHQ checked Sep 19, 2026	201-500	499 contacts →
	Indirect 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 19, 2026
13	Infoanalytica, INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	201-500	482 contacts →
	Indirect evidence “InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.” Source: RevenueBase Database · checked Sep 19, 2026
14	Demandshore	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	478 contacts →
	Indirect evidence “About DemandShore Since 2004, we’ve been working hard to deliver value to Sales & Marketing professionals across B2B Technology companies globally.” Source: RevenueBase Database · checked Sep 19, 2026
15	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
16	AGR Group	Indirect evidence	Henderson, NV, United StatesHQ checked Sep 19, 2026	201-500	454 contacts →
	Indirect evidence “With over 20 years of operational experience in the contact center BPO space, AGR has solidified its position as a dedicated partner, consistently delivering exceptional service…” Source: RevenueBase Database · checked Sep 19, 2026
17	Global Agility Solutions	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	501-1,000	403 contacts →
	Indirect evidence “Global Agility Solutions offers comprehensive onshore, offshore and hybrid Business Process Outsourcing (BPO) services and solutions focused on automating and advancing repeatable…” Source: RevenueBase Database · checked Sep 19, 2026
18	Amarketforce	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	201-500	391 contacts →
	Indirect evidence “aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.” Source: RevenueBase Database · checked Sep 19, 2026
19	Beyond Codes INC	Indirect evidence	Simi Valley, CA, United StatesHQ checked Sep 19, 2026	201-500	380 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
20	EBQ	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	201-500	377 contacts →
	Partial evidence “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Source: RevenueBase Database · checked Sep 19, 2026
21	FUNNL	Indirect evidence	Philadelphia, United StatesHQ checked Sep 19, 2026	201-500	349 contacts →
	Indirect evidence “FunnL was built on a revolutionary idea: B2B companies don’t need more leads-they need more qualified sales meetings with decision-makers.” Source: RevenueBase Database · checked Sep 19, 2026
22	Delegate CX	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	201-500	341 contacts →
	Indirect evidence “Growth Made Achievable.” Source: RevenueBase Database · checked Sep 19, 2026
23	Jumpcrew	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	201-500	339 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
24	Eplanet Global	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 2026	501-1,000	329 contacts →
	Indirect evidence “About Eplanet Global Since our inception in 2003, Eplanet Global has been a trailblazer in the tech-driven BPO industry.” Source: RevenueBase Database · checked Sep 19, 2026
25	Cydcor	Indirect evidence	Agoura Hills, CA, United StatesHQ checked Sep 19, 2026	51-200	328 contacts →
	Indirect evidence “We create opportunity: For our clients, our team, and the future.” Source: RevenueBase Database · checked Sep 19, 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: business development outsourcers. 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 business development outsourcers.
Partial evidence: Its own public description names part of business development outsourcers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business development outsourcers. 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 4,350 business development outsourcers based in the United States

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Business development outsourcers based in the United States at a glance

As of Sep 19, 2026

14.0%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

2,479

11-50

1,258

51-200

410

201-500

132

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 4,350 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 business development outsourcers, 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 “business development outsourcers”. 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 business development outsourcers), 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 business development outsourcers, 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, 7,823 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 19, 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.

Business development outsourcers by metro

Business development outsourcers in New York232
Business development outsourcers in Miami105
Business development outsourcers in Los Angeles101
Business development outsourcers in Sheridan91
Business development outsourcers in Austin87
Business development outsourcers in Houston82
Business development outsourcers in San Francisco80
Business development outsourcers in Atlanta74
Business development outsourcers in Chicago74
Business development outsourcers in Dallas71
Business development outsourcers in San Diego67
Business development outsourcers in Denver59
Business development outsourcers in Orlando54
Business development outsourcers in Wilmington41
Business development outsourcers in Charlotte39
Business development outsourcers in Boston37
Business development outsourcers in Tampa36
Business development outsourcers in Las Vegas35
Business development outsourcers in Seattle34
Business development outsourcers in Philadelphia32
Business development outsourcers in Phoenix32
Business development outsourcers in Scottsdale29
Business development outsourcers in Washington26
Business development outsourcers in Nashville25
Business development outsourcers in New York City25
Business development outsourcers in Pittsburgh25
Business development outsourcers in Portland25

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 business development outsourcers, 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 business development outsourcers are there based in the United States?

RevenueBase identified 4,350 business development outsourcers 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?

Marketstar, headquartered in Ogden, tops this list with the largest team on record.

Which city has the most business development outsourcers?

New York leads with 232 headquartered companies, followed by Miami (105) and Los Angeles (101).

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 7,823 verified decision-maker contacts tracked across these 4,350 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 19, 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.