Company lists · Data refreshed September 2026

Top 23 Inside sales outsourcers based in New York, United States

RevenueBase identified 116 inside sales outsourcers headquartered in New York, United States as of September 2026 and tracks 2,295 professional contacts across them, including 59 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers inside sales outsourcers headquartered in New York, 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 28, 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 28, 2026 86% judged on-target in blind review
116Companies
2,295Contacts tracked
59Verified emails
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The 23 largest inside sales outsourcers based in New York, United States

Ranked by team size
Top 23 of 116 inside sales outsourcers based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to inside sales 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261,001-5,000860 contacts →

Indirect evidence

“Horatio is a premier, tech-enabled outsourcing partner helping ambitious companies scale customer experience and complex business operations without compromising quality…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceNew York, United StatesHQ checked Sep 28, 2026501-1,000173 contacts →

Indirect evidence

“Calls Experts is a global contact center solution provider.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,00053 contacts →

Indirect evidence

“Scale Your Business Let's be honest, “A Business That Isn’t Growing, Is Slowly Dying”.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5027 contacts →

Indirect evidence

“For enterprise technology companies ready to push boundaries, Site Ascend is the powerhouse behind qualified appointment setting and B2B lead generation that drives results.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“Montazzo is a growth-obsessed B2B lead-gen agency that GUARANTEES decision-maker leads/meetings.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5020 contacts →

Partial evidence

“Latinx Revops is the engine behind high-performing sales teams, turning B2B outbound prospecting into a predictable, scalable revenue machine.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“Periodix is an AI solution to generate leads and book calls with prospects for you.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5016 contacts →

Partial evidence

“Enablement Data was founded in 2016 and specializes in full-service business development with a specific focus on lead generation for sales revenue.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-50014 contacts →

Indirect evidence

“IMG Corporations is a venture-capital backed firm.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“AirBridge is a Manhattan-based digital lead generation and business development agency.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-1012 contacts →

Indirect evidence

“We Book Calls, You Close Deals.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceNew York, United StatesHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“BizzLead is a lead generation and appointment setting company offering unparalleled data accuracy and versatile services, all with the goal of helping our clients smash through…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Bearworks helps outbound sales teams connect faster, coach better, and book more meetings.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“Perfect Sprout unlocks powerful sales acceleration for growth oriented businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceNew York, United StatesHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“We help B2B companies book qualified sales calls using cold email - without relying on ads, referrals, or manual outreach.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceNew York, United StatesHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“MetricZoom is launching an industry first software application to help companies get qualified sales appointments.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Most B2B founders build their first clients through referrals.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“We help agencies and B2B service businesses sign (at least) 1-2 new clients/month using AI-powered cold outreach.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Never miss another customer.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-2002 contacts →

Indirect evidence

“Klienture is a boutique lead generation and demand creation company, specializing in connecting businesses with their ideal customers & clients.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“KO Ventures expertise lies in B2B lead generation and sales support.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Transforming B2B Lead Generation At Prospect Blaze, we specialize in helping B2B companies secure 3-5 qualified client meetings per week through innovative lead generation…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“We are Exactly, and we offer the first end-to-end outbound marketing solution that will help you grow your business while spending as little time as possible actually doing the…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 23 of 116 inside sales outsourcers based in New York, United States

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Inside sales outsourcers based in New York, United States at a glance

As of Sep 28, 2026
2.6%Verified-email coverage
19.8Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
39
51-200
11
201-500
6
501-1,000
1
1,001-5,000
3

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 116 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 inside sales 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 New York, United States whose own description of what they do matches “inside sales 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 inside sales 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 inside sales outsourcers, and records with no verified work email. Companies headquartered outside New York 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, 59 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 28, 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.

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 inside sales 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 inside sales outsourcers are there based in New York, United States?

RevenueBase identified 116 inside sales outsourcers headquartered in New York, 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?

Horatio, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most inside sales outsourcers?

New York leads the United States with 116 headquartered companies, followed by Sheridan (72) and Los Angeles (67).

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 59 verified decision-maker contacts tracked across these 116 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 28, 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.