Company lists · Data refreshed September 2026

Top 25 Multichannel outbound agencies based in the United States

Name: Multichannel outbound 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 14, 2026 4,427 companies tracked

RevenueBase identified 4,427 multichannel outbound agencies headquartered in the United States as of September 2026 and tracks 40,863 professional contacts across them, including 7,781 with verified work emails and 9,527 with mobile numbers. New York is the largest hub.

This list covers multichannel outbound agencies 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 14, 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 14, 2026 86% judged on-target in blind review

4,427Companies

40,863Contacts tracked

7,781Verified emails

9,527Mobile numbers

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The 25 largest multichannel outbound agencies based in the United States

Ranked by team size

Top 25 of 4,427 multichannel outbound agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to multichannel outbound agencies: 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	Data Axle	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,088 contacts →
	Indirect evidence “Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs” Source: RevenueBase Database · checked Sep 14, 2026
2	S2w Media	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	501-1,000	806 contacts →
	Indirect evidence “We are innovators, problem solvers, thought leaders, and above all else, a team.” Source: RevenueBase Database · checked Sep 14, 2026
3	Manlitics B2B Ites	Indirect evidence	New York, United StatesHQ checked Sep 14, 2026	501-1,000	750 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026
4	Anteriad	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	501-1,000	740 contacts →
	Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 14, 2026
5	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 14, 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 14, 2026
6	Salebuild	Indirect evidence	Redwood City, CA, United StatesHQ checked Sep 14, 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 14, 2026
7	Flexisales INC	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 14, 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 14, 2026
8	CMD	Indirect evidence	Portland, OR, United StatesHQ checked Sep 14, 2026	n/a	604 contacts →
	Indirect evidence “Take command of every opportunity with a partner that gets results.” Source: RevenueBase Database · checked Sep 14, 2026
9	Digitalzone	Indirect evidence	New York, NY, United StatesHQ checked Sep 14, 2026	501-1,000	558 contacts →
	Indirect evidence “Digitalzone is a global marketing and demand gen company dedicated to delivering compliant leads, exceptional customer satisfaction, and an end-to-end approach.” Source: RevenueBase Database · checked Sep 14, 2026
10	SGT	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	201-500	557 contacts →
	Indirect evidence “After almost 2 years driving internal demand at one of Omnicom's lead Marketing strategy agencies I have returned to Lead to Market to lead our applied marketing practice.” Source: RevenueBase Database · checked Sep 14, 2026
11	Movingdneedle Pvt. LTD	Indirect evidence	Sterling Heights, MI, United StatesHQ checked Sep 14, 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 14, 2026
12	Callbox INC	Indirect evidence	Encino, CA, United StatesHQ checked Sep 14, 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 14, 2026
13	Demandshore	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 14, 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 14, 2026
14	Sg360	Indirect evidence	Wheeling, IL, United StatesHQ checked Sep 14, 2026	501-1,000	477 contacts →
	Indirect evidence “sg360° can help you identify and connect with your best prospects 1:1, both offline and on.” Source: RevenueBase Database · checked Sep 14, 2026
15	Saleshive	Indirect evidence	Denver, CO, United StatesHQ checked Sep 14, 2026	51-200	455 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
16	22squared	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 14, 2026	201-500	447 contacts →
	Indirect evidence “For over 100 years, 22squared has helped complex businesses solve their toughest challenges through insight-driven media and creative.” Source: RevenueBase Database · checked Sep 14, 2026
17	Marketone International	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 14, 2026	201-500	431 contacts →
	Indirect evidence “MarketOne is a global demand generation agency.” Source: RevenueBase Database · checked Sep 14, 2026
18	FUNNL	Indirect evidence	Philadelphia, United StatesHQ checked Sep 14, 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 14, 2026
19	Unboundb2b	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 14, 2026	201-500	297 contacts →
	Indirect evidence “UnboundB2B is a marketing agency that caters to Enterprise and Technology companies across the globe to improve ROI on their marketing spend and shorten sales cycle with its…” Source: RevenueBase Database · checked Sep 14, 2026
20	Enpointe	Indirect evidence	Brooklyn Park, MN, United StatesHQ checked Sep 14, 2026	201-500	245 contacts →
	Indirect evidence “ENPOINTE works with some of the most impactful brands across industries helping them create marketing solutions that drive results and solve business problems.” Source: RevenueBase Database · checked Sep 14, 2026
21	TPG	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 14, 2026	n/a	212 contacts →
	Indirect evidence “TPG Direct We are experts in multi-channel customer acquisition who help our clients make complex targeting decisions, optimize marketing investment and generate profitable growth.” Source: RevenueBase Database · checked Sep 14, 2026
22	Quantum 3 Media	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 14, 2026	51-200	204 contacts →
	Indirect evidence “Quantum 3 Media is one of the fastest growing organizations within the customer acquisition, lead generation/Pay per call within all verticals of insurance and education, contact…” Source: RevenueBase Database · checked Sep 14, 2026
23	Incept	Indirect evidence	Canton, OH, United StatesHQ checked Sep 14, 2026	501-1,000	200 contacts →
	Indirect evidence “Incept is a multi-channel contact center that strengthens the relationship between you and your client with every interaction.” Source: RevenueBase Database · checked Sep 14, 2026
24	Direct Marketing Solutions	Partial evidence	Portland, OR, United StatesHQ checked Sep 14, 2026	501-1,000	198 contacts →
	Partial evidence “DMS is a national, vertically integrated, multichannel direct marketing company.” Source: RevenueBase Database · checked Sep 14, 2026
25	Alleyoop	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 14, 2026	51-200	175 contacts →
	Indirect evidence “We help companies maximize ROI through lead generation, relationship management, and event support.” Source: RevenueBase Database · checked Sep 14, 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: multichannel outbound agencies. 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 multichannel outbound agencies.
Partial evidence: Its own public description names part of multichannel outbound agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name multichannel outbound agencies. 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 4,427 multichannel outbound agencies based in the United States

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Multichannel outbound agencies based in the United States at a glance

As of Sep 14, 2026

19.0%Verified-email coverage

23.3%Mobile-number coverage

9.2Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

2,829

11-50

1,167

51-200

311

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 17.0d

5,9150–30

1,73531–60

3861–90

990–180

84180+

Company record updated

Median 78.0d

00–30

12,87031–60

20,78961–90

5,46690–180

1,738180+

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 multichannel outbound agencies, 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 “multichannel outbound agencies”. 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 multichannel outbound agencies), 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 multichannel outbound agencies, 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, 7,781 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 14, 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.

Multichannel outbound agencies by metro

Multichannel outbound agencies in New York165
Multichannel outbound agencies in Los Angeles103
Multichannel outbound agencies in Houston88
Multichannel outbound agencies in Miami81
Multichannel outbound agencies in Atlanta70
Multichannel outbound agencies in Chicago70
Multichannel outbound agencies in Sheridan67
Multichannel outbound agencies in Dallas65
Multichannel outbound agencies in Austin63
Multichannel outbound agencies in Las Vegas58
Multichannel outbound agencies in San Diego56
Multichannel outbound agencies in Denver55
Multichannel outbound agencies in San Francisco51
Multichannel outbound agencies in Tampa42
Multichannel outbound agencies in Phoenix39
Multichannel outbound agencies in Orlando37
Multichannel outbound agencies in Portland35
Multichannel outbound agencies in Philadelphia31
Multichannel outbound agencies in Irvine28
Multichannel outbound agencies in Scottsdale28
Multichannel outbound agencies in Seattle28
Multichannel outbound agencies in Charlotte27
Multichannel outbound agencies in Boston26
Multichannel outbound agencies in Wilmington26

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 multichannel outbound agencies, 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 multichannel outbound agencies are there based in the United States?

RevenueBase identified 4,427 multichannel outbound agencies 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?

Data Axle, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most multichannel outbound agencies?

New York leads with 165 headquartered companies, followed by Los Angeles (103) and Houston (88).

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 7,781 verified decision-maker contacts tracked across these 4,427 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 14, 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.