Company lists · Data refreshed September 2026

Top 25 Outsourced sales and marketing agencies based in the United States

Name: Outsourced sales and marketing agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 10,831 companies tracked

RevenueBase identified 10,831 company matches for outsourced sales and marketing agencies associated with the United States as of September 2026 and tracks 142,858 professional contacts across them, including 27,664 with verified work emails. New York is the largest hub.

This list covers company matches for outsourced sales and marketing agencies associated with the United States, 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.

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

10,831Companies

142,858Contacts tracked

27,664Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest outsourced sales and marketing agencies based in the United States

Ranked by team size

Top 25 of 10,831 company matches for outsourced sales and marketing agencies based in the United States, 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	Zoominfo	Exact match	Vancouver, WA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,029 contacts →
	Exact match “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Marketsource INC	Exact match	Alpharetta, GA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	3,063 contacts →
	Exact match “MarketSource, an Allegis Group company, is a sales acceleration company focused on delivering better outcomes for many of the world’s most iconic brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Advanced Call Center Technologies, LLC	Exact match	Berwyn, PA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	2,774 contacts →
	Exact match “Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	KKM	Exact match	Woonsocket, RI, United StatesHQ recorded Sep 21, 2026	n/a	2,747 contacts →
	Exact match “Founded in 1977, KKM is a customer-driven, knowledge and data based sales and service organization.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Interpublic Group IPG	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	2,682 contacts →
	Exact match “Interpublic has been acquired by Omnicom, the world's leading marketing and sales company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Marketstar	Exact match	Ogden, UT, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,446 contacts →
	Exact match “MarketStar is a global B2B sales outsourcing leader with 38+ years of experience driving predictable revenue growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Power Digital Marketing	Exact match	San Diego, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	1,570 contacts →
	Exact match “Power Digital is a growth marketing firm fueled by technology and driven by a talented team of consultative marketers, creatives, analysts and technologists.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	BDS Connected Solutions, LLC	Exact match	Lake Forest, CA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,530 contacts →
	Exact match “BDS Connected Solutions offers a complete suite of solutions that blend Advocacy, Assisted Sales, Training, Virtual, Retail, Experiential, Merchandising, Break Fix, Installations…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Tranzact	Exact match	Fort Lee, NJ, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,319 contacts →
	Exact match “TRANZACT is the market leader in delivering high-volume sales for the top insurance brands in America.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Full Potential Solutions	Exact match	Waltham, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,238 contacts →
	Exact match “Full Potential Solutions (FPS) is a new kind of performance-based outsourcing firm that puts culture and employees first, because we believe that happy, fulfilled teams accomplish…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Credico	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	n/a	1,188 contacts →
	Exact match “Credico is the world's leading face-to-face customer acquisition agency, helping our clients attract and retain loyal customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Demandscience	Exact match	Boston, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,087 contacts →
	Exact match “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	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
14	Inktel Contact Center Solutions	Exact match	Doral, FL, United StatesHQ recorded Sep 21, 2026	1,001-5,000	902 contacts →
	Exact match “Our Company Inktel is a leading business process outsourcer that specializes in creating personalized call center solutions which enable our clients to increase market share…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Memoryblue	Exact match	Tysons, VA, United StatesHQ recorded Sep 21, 2026	501-1,000	825 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 · Sep 21, 2026 · View company records in RevenueBase
16	Affinity Group, Sales & Marketing Agency	Exact match	Charlotte, WI, United StatesHQ recorded Sep 21, 2026	501-1,000	815 contacts →
	Exact match “From culinary support, to store-level merchandising, to sales planning and strategy, Affinity Group's experienced retail and foodservice teams can help you build Your Bridge to…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	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
18	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
19	Anteriad	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	501-1,000	740 contacts →
	Exact match “Data Driven.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Abstrakt Marketing Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 21, 2026	501-1,000	724 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 · Sep 21, 2026 · View company records in RevenueBase
21	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
22	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
23	SCI	Exact match	Miami, FL, United StatesHQ recorded Sep 21, 2026	501-1,000	696 contacts →
	Exact match “SCI was merged and sold to WPP in 2010.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Infinity	Exact match	Cedar Rapids, IA, United StatesHQ recorded Sep 21, 2026	501-1,000	609 contacts →
	Exact match “Infinity is an award-winning inside sales agency and consulting firm with 30 years of experience helping B2B companies maximize sales and drive revenue.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	CMD	Exact match	Portland, OR, United StatesHQ recorded Sep 21, 2026	n/a	604 contacts →
	Exact match “Take command of every opportunity with a partner that gets results.” 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 sales and marketing 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 10,831 outsourced sales and marketing agencies based in the United States

See the full list, filter by size, metro and specialty, and access 27,664 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Outsourced sales and marketing agencies based in the United States at a glance

As of Sep 21, 2026

19.4%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

4.7%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

6,217

11-50

3,443

51-200

856

201-500

198

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 10,831 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “outsourced sales and marketing 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 27,664 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 sales and marketing agencies by metro

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 sales and marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourced sales and marketing agencies are there based in the United States?

RevenueBase identified 10,831 company matches for outsourced sales and marketing agencies associated with the United States 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?

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

Which city has the most outsourced sales and marketing agencies?

New York leads with 506 company records, followed by Miami (250) and Los Angeles (245).

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 27,664 professional contacts with verified work emails tracked across these 10,831 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.

Ready to reach these companies? Verified emails and direct dials for all 10,831 outsourced sales and marketing agencies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Outsourced sales and marketing agencies by geography

Browse the directory

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.