Company lists · Data refreshed September 2026

Top 25 B2B sales prospecting services based in the United States

RevenueBase identified 1,833 B2B sales prospecting services headquartered in the United States as of September 2026 and tracks 27,476 professional contacts across them, including 3,223 with verified work emails. New York is the largest hub.

This list covers B2B sales prospecting services 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
1,833Companies
27,476Contacts tracked
3,223Verified emails
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The 25 largest B2B sales prospecting services based in the United States

Ranked by team size
Top 25 of 1,833 B2B sales prospecting services 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 B2B sales prospecting services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMiami, FL, United StatesHQ checked Sep 27, 2026201-5001,068 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 27, 2026
2Partial evidenceRedwood City, CA, United StatesHQ checked Sep 27, 2026n/a708 contacts →

Partial 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
3Partial evidenceLas Vegas, NV, United StatesHQ checked Sep 27, 2026201-500697 contacts →

Partial 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
4Partial evidenceSterling Heights, MI, United StatesHQ checked Sep 27, 202651-200528 contacts →

Partial 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
5Indirect evidenceEncino, CA, United StatesHQ checked Sep 27, 2026201-500499 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
6Strong evidenceSan Jose, CA, United StatesHQ checked Sep 27, 2026201-500482 contacts →

Strong evidence

“InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceDenver, CO, United StatesHQ checked Sep 27, 202651-200455 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceHurst, TX, United StatesHQ checked Sep 27, 202651-200428 contacts →

Indirect evidence

“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceBerkeley, CA, United StatesHQ checked Sep 27, 2026201-500416 contacts →

Partial evidence

“LeadGenius helps B2B companies find and reach their next best customers.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceSan Jose, CA, United StatesHQ checked Sep 27, 2026201-500391 contacts →

Partial evidence

“aMarketForce is a full-scale B2B Contact Database & Demand Generation services company.”

Source: RevenueBase Database · checked Sep 27, 2026
11Strong evidenceSimi Valley, CA, United StatesHQ checked Sep 27, 2026201-500380 contacts →

Strong 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
12Strong evidenceBoston, MA, United StatesHQ checked Sep 27, 2026201-500359 contacts →

Strong evidence

“Lusha is the B2B data and sales intelligence system used by sales, marketing, recruiting, RevOps teams, and AI agents to find contacts, enrich records, and track real-world buying…”

Source: RevenueBase Database · checked Sep 27, 2026
13Strong evidencePhiladelphia, United StatesHQ checked Sep 27, 2026201-500349 contacts →

Strong 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
14Partial evidenceAustin, TX, United StatesHQ checked Sep 27, 2026201-500309 contacts →

Partial evidence

“Vereigen Media is a U.S-based B2B demand generation company that supports organizations connect with data-driven lead generation and audience engagement solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceChelmsford, MA, United StatesHQ checked Sep 27, 2026201-500291 contacts →

Indirect evidence

“The market knows us as the leader in appointment setting.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceWoodland Hills, CA, United StatesHQ checked Sep 27, 202651-200278 contacts →

Partial 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
17Partial evidenceDetroit, MI, United StatesHQ checked Sep 27, 20261,001-5,000247 contacts →

Partial evidence

“Rocket Connections is a sales and support platform specializing in contact center services.”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidencePensacola, FL, United StatesHQ checked Sep 27, 202651-200223 contacts →

Strong evidence

“Founded in 2016 and headquartered in Pensacola, Florida, MarketJoy is a B2B lead generation, appointment generation and sales development partner built to deliver predictable…”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceDover, DE, United StatesHQ checked Sep 27, 2026201-500209 contacts →

Indirect evidence

“Belkins is the #1 ranked appointment-setting agency in the USA for 5 years in a row, driving results for businesses in 50+ industries across the globe.”

Source: RevenueBase Database · checked Sep 27, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 27, 2026201-500194 contacts →

Strong evidence

“ChannelGrowth provides B2B data acquisition, lead generation, prospecting, and sales teams at scale.”

Source: RevenueBase Database · checked Sep 27, 2026
21Strong evidenceWashington D.c., WA, United StatesHQ checked Sep 27, 202651-200188 contacts →

Strong evidence

“Salaria Sales Solutions is a B2B lead generation and sales development agency.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceCopley, OH, United StatesHQ checked Sep 27, 202651-200185 contacts →

Strong evidence

“Concept develops and implements comprehensive B2B lead generation and sales development solutions for companies.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceBuffalo, NY, United StatesHQ checked Sep 27, 202651-200175 contacts →

Indirect evidence

“We help companies maximize ROI through lead generation, relationship management, and event support.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceRemote, United StatesHQ checked Sep 27, 202651-200174 contacts →

Indirect evidence

“We provide outsourced demand generation for companies looking to aggressively expand their revenue opportunities.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceSaratoga, CA, United StatesHQ checked Sep 27, 202651-200163 contacts →

Partial evidence

“Markable Solutions is a Silicon Valley B2B marketing company offering end-to-end demand generation and funnel management services to clients worldwide.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 1,833 B2B sales prospecting services based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,223 reachable decision-makers.

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B2B sales prospecting services based in the United States at a glance

As of Sep 27, 2026
11.7%Verified-email coverage
15.0Average contacts per company
11-50Median size (employees)
6.8%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
893
11-50
610
51-200
239
201-500
69
501-1,000
12
1,001-5,000
7
10001+
1

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 1,833 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 B2B sales prospecting services, 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 “B2B sales prospecting services”. 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 B2B sales prospecting services), 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 B2B sales prospecting services, 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, 3,223 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.

B2B sales prospecting services 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 B2B sales prospecting services, 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 B2B sales prospecting services are there based in the United States?

RevenueBase identified 1,833 B2B sales prospecting services 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?

Cience, headquartered in Miami, tops this list with the largest team on record.

Which city has the most B2B sales prospecting services?

New York leads with 124 headquartered companies, followed by Sheridan (62) and Los Angeles (55).

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 3,223 verified decision-maker contacts tracked across these 1,833 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.