Company lists · Data refreshed September 2026

Top 25 Appointment setting firms worldwide

RevenueBase identified 1,215 appointment setting firms worldwide as of September 2026 and tracks 9,011 professional contacts across them, including 2,340 with verified work emails. The United States is the largest market and London the largest hub.

This list covers appointment setting firms worldwide, 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 21, 2026. Country and city lists for appointment setting firms follow the table.

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 RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
1,215Companies
9,011Contacts tracked
2,340Verified emails
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The 25 largest appointment setting firms worldwide

Ranked by team size
Top 25 of 1,215 appointment setting firms worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to appointment setting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 21, 20261,001-5,0001,679 contacts →

Indirect evidence

“HelmsBriscoe streamlines the meeting planning process by managing the time-consuming task of researching, contacting, and evaluating venues for your organization’s events.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 21, 2026501-1,000507 contacts →

Indirect evidence

“At Calendly, our vision is to take the work out of connecting with others so you can accomplish more.”

Source: RevenueBase Database · checked Sep 21, 2026
3Strong evidenceChelmsford, MA, United StatesHQ checked Sep 21, 2026201-500291 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceDover, DE, United StatesHQ checked Sep 21, 2026201-500209 contacts →

Strong 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 21, 2026
5Partial evidenceMandaue, PhilippinesHQ checked Sep 21, 2026201-500148 contacts →

Partial evidence

“For 15 years, we steadily are providing face to face appointments to keep your sales people busy.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceSantiago, ChileHQ checked Sep 21, 202651-200108 contacts →

Indirect evidence

“TGP es la mayor agencia de prospección de Latinoamérica, con un equipo de +90 personas, capaz de agendar reuniones mensuales, todos los meses.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceManchester, United KingdomHQ checked Sep 21, 202611-50104 contacts →

Indirect evidence

“Flowd is an award-winning sales prospecting specialist based in the UK, Europe & US.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceZurich, SwitzerlandHQ checked Sep 21, 202651-200103 contacts →

Indirect evidence

“Meet.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 21, 202651-20092 contacts →

Indirect evidence

“We Help B2B Companies Generate Leads, Book Qualified Meetings And Close Deals.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 21, 202651-20079 contacts →

Indirect evidence

“It's an open secret.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceMunich, GermanyHQ checked Sep 21, 202651-20064 contacts →

Partial evidence

“At TIMIFY, we empower businesses with cutting-edge appointment booking and resource scheduling solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceSheridan, WY, United StatesHQ checked Sep 21, 2026201-50061 contacts →

Partial evidence

“Seasoned appointment setters ready to fill your pipeline with verified and qualified prospects.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceAtlanta, GA, United StatesHQ checked Sep 21, 202651-20057 contacts →

Partial evidence

“SUMO is a customer engagement platform that includes online Appointment, Event, and Field Sales scheduling, built fully native on Salesforce.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceHilliard, OH, United StatesHQ checked Sep 21, 202611-5048 contacts →

Indirect evidence

“We help insurance agents get appointed with lots of independent insurance carriers.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 202611-5046 contacts →

Indirect evidence

“Cal.com is a modern, fully customizable scheduling platform built for teams that care about both power and design.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceMontreal, QC, CanadaHQ checked Sep 21, 202611-5044 contacts →

Partial evidence

“Booxi is the appointment scheduling solution of choice for brands and retailers looking to provide exceptional customer experience.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 21, 202651-20042 contacts →

Indirect evidence

“We're a human-driven AI-enabled sales development team recommended by 100+ VCs, 200+ leading startups 🦄, dozens of professional sports teams, and iconic tech companies, we book…”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceBristol, United KingdomHQ checked Sep 21, 202611-5038 contacts →

Partial evidence

“Highly qualified B2B Sales Appointments you can trust.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceHebden Bridge, United KingdomHQ checked Sep 21, 202611-5038 contacts →

Indirect evidence

“We are the people who make meetings happen.”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceAndover, MA, United StatesHQ checked Sep 21, 202651-20037 contacts →

Strong evidence

“DRolls is a strategic appointment-setting agency that opens doors by closing high-level meetings with key decision-makers.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceClaymont, DE, United StatesHQ checked Sep 21, 202611-5037 contacts →

Indirect evidence

“Every marketing campaign(inbound or outbound) drives buyers to one place: your website.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 21, 202611-5036 contacts →

Indirect evidence

“We LOVE making cold calls!”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceWalnut Creek, CA, United StatesHQ checked Sep 21, 2026n/a36 contacts →

Indirect evidence

“Since 2007, Reliable Receptionist has thrived by providing highly personalized, locally-based, live telephone reception to small business owners, helping them grow revenue and…”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceAustin, TX, United StatesHQ checked Sep 21, 202611-5031 contacts →

Indirect evidence

“Picktime is one of the world's leading scheduling platforms providing a quick, intuitive tool that enables professionals to book meetings with clients.”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidencen/a51-20030 contacts →

Strong evidence

“Channel Hunters is more than just a typical Appointment setting and Lead Generation company.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 1,215 appointment setting firms worldwide

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Appointment setting firms worldwide at a glance

As of Sep 21, 2026
26.0%Verified-email coverage
7.4Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
888
11-50
248
51-200
56
201-500
12
501-1,000
4
1,001-5,000
1

Email recency is reported on each country list linked below.

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 appointment setting 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.
Coverage
Every country. Country and city lists for appointment setting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “appointment setting 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 appointment setting 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 appointment setting firms, and records with no verified work email.
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, 2,340 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 21, 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.

Appointment setting firms by location

5 lists · largest first

Every Appointment setting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 appointment setting 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 appointment setting firms are there worldwide?

RevenueBase identified 1,215 appointment setting firms worldwide 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?

Helmsbriscoe, headquartered in Scottsdale, tops this list with the largest team on record.

Which country has the most appointment setting firms?

The United States leads with 248 companies, followed by the United Kingdom (63) and Canada (31). Every appointment setting firms list by country and city is linked on this page.

Which city has the most appointment setting firms?

London leads with 23 headquartered companies, followed by Paris (20) and New York (16).

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 2,340 verified decision-maker contacts tracked across these 1,215 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 21, 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.