Company lists · Data refreshed September 2026

Top 25 Business development outsourcing firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 6,094 companies tracked

RevenueBase identified 6,094 business development outsourcing firms headquartered in the United States as of September 2026 and tracks 57,512 professional contacts across them, including 8,195 with verified work emails. New York is the largest hub.

This list covers business development outsourcing firms 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 27, 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 27, 2026 86% judged on-target in blind review

6,094Companies

57,512Contacts tracked

8,195Verified emails

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The 25 largest business development outsourcing firms based in the United States

Ranked by team size

Top 25 of 6,094 business development outsourcing firms based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business development outsourcing firms: 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	SEBPO	Indirect evidence	Marlton, NJ, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,237 contacts →
	Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 27, 2026
2	Memoryblue	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 27, 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 27, 2026
3	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 27, 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 27, 2026
4	Salebuild	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 27, 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 27, 2026
5	Flexisales INC	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 27, 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 27, 2026
6	Shore Group Associates	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
7	Infinity	Indirect evidence	Cedar Rapids, IA, United StatesHQ checked Sep 27, 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 27, 2026
8	Global Strategic Business Process Solutions	Partial evidence	Burlington, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	553 contacts →
	Partial evidence “Global Strategic is a business process outsourcing partner that builds high-performing teams through custom onshore, nearshore, and offshore solutions.” Source: RevenueBase Database · checked Sep 27, 2026
9	Movingdneedle Pvt. LTD	Indirect evidence	Sterling Heights, MI, United StatesHQ checked Sep 27, 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 27, 2026
10	Callbox INC	Indirect evidence	Encino, CA, United StatesHQ checked Sep 27, 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 27, 2026
11	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 27, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
12	OKS Group	Indirect evidence	Bala Cynwyd, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	416 contacts →
	Indirect evidence “Founded in 1985, OKS Group provides customized BPO and LPO services to some of the world's largest and most demanding companies.” Source: RevenueBase Database · checked Sep 27, 2026
13	The Functionary	Indirect evidence	Aubrey, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	415 contacts →
	Indirect evidence “The Functionary helps companies scale operations around the reality of their business, not a standard model.” Source: RevenueBase Database · checked Sep 27, 2026
14	Global Agility Solutions	Partial evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	501-1,000	403 contacts →
	Partial 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 27, 2026
15	Amarketforce	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 27, 2026	201-500	391 contacts →
	Indirect evidence “aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.” Source: RevenueBase Database · checked Sep 27, 2026
16	Beyond Codes INC	Indirect evidence	Simi Valley, CA, United StatesHQ checked Sep 27, 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 27, 2026
17	EBQ	Indirect evidence	Austin, TX, United StatesHQ checked Sep 27, 2026	201-500	377 contacts →
	Indirect evidence “EBQ is an outsourced sales and marketing organization that provides services to help companies scale.” Source: RevenueBase Database · checked Sep 27, 2026
18	FUNNL	Indirect evidence	Philadelphia, United StatesHQ checked Sep 27, 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 27, 2026
19	Eplanet Global	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 27, 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 27, 2026
20	Cydcor	Indirect evidence	Agoura Hills, CA, United StatesHQ checked Sep 27, 2026	51-200	328 contacts →
	Indirect evidence “We create opportunity: For our clients, our team, and the future.” Source: RevenueBase Database · checked Sep 27, 2026
21	MMF Infotech Technologies Pvt. LTD	Indirect evidence	Plainview, NY, United StatesHQ checked Sep 27, 2026	51-200	299 contacts →
	Indirect evidence “MMF Infotech is a rare platform where Talent meets Technology to deliver highly competitive solutions and services to small to mid-size businesses.” Source: RevenueBase Database · checked Sep 27, 2026
22	Redial BPO	Partial evidence	San Diego, CA, United StatesHQ checked Sep 27, 2026	501-1,000	285 contacts →
	Partial evidence “Redial is a full-service nearshore and offshore business processing outsourcing (BPO) company.” Source: RevenueBase Database · checked Sep 27, 2026
23	CAP Digisoft Solutions INC	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 27, 2026	201-500	283 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
24	1105 Media	Indirect evidence	Woodland Hills, CA, United StatesHQ checked Sep 27, 2026	51-200	278 contacts →
	Indirect evidence “1105 Media, Inc, is a leading business-to-business (B2B) services provider whose sole mission is to help our customers grow their business.” Source: RevenueBase Database · checked Sep 27, 2026
25	Avco Consulting, INC	Strong evidence	Worcester, MA, United StatesHQ checked Sep 27, 2026	501-1,000	251 contacts →
	Strong evidence “Avco Consulting is a registered Minority Business Enterprise providing IT Consulting, Offshore Software Development, Custom Software Development, Offshore Outsourcing, and Web…” Source: RevenueBase Database · checked Sep 27, 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 outsourcing firms. 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 outsourcing firms.
Partial evidence: Its own public description names part of business development outsourcing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business development outsourcing firms. 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 6,094 business development outsourcing firms based in the United States

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Business development outsourcing firms based in the United States at a glance

As of Sep 27, 2026

14.2%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

3,908

11-50

1,495

51-200

479

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 6,094 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 outsourcing firms, 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 outsourcing firms”. 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 outsourcing firms), 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 outsourcing firms, 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, 8,195 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 27, 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 outsourcing firms by metro

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 outsourcing firms, 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 outsourcing firms are there based in the United States?

RevenueBase identified 6,094 business development outsourcing firms 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?

SEBPO, headquartered in Marlton, tops this list with the largest team on record.

Which city has the most business development outsourcing firms?

New York leads with 315 headquartered companies, followed by Los Angeles (141) and Miami (134).

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 8,195 verified decision-maker contacts tracked across these 6,094 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 27, 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.