Company lists · Data verified August 2026

Top 25 Appointment setting companies based in the United States

Name: Appointment setting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 479 companies tracked

There are 479 appointment setting companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 5,425 professional contacts across them, including 1,070 with verified work emails and 1,318 with mobile numbers. New York is the largest hub.

This list covers appointment setting companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

479Companies

5,425Contacts tracked

1,070Verified emails

1,318Mobile numbers

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The 25 largest appointment setting companies based in the United States

Ranked by team size

Top 25 of 479 appointment setting companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Calendly	Atlanta, GA	501-1,000	515	252
2	Alliance Pdms	Hurst, TX	51-200	428	6
3	By Appointment Only, Inc. BAO	Mesa, AZ	201-500	294	94
4	smith.ai	Los Altos, CA	51-200	289	92
5	Rocket Connections	Detroit, MI	1,001-5,000	248	21
6	Belkins INC	Dover, DE	201-500	207	110
7	Centralized Showing Service	Overland Park, KS	501-1,000	183	3
8	Launch Leads	Salt Lake City, UT	51-200	112	5
9	Smartsetter	Los Angeles, CA	51-200	78	13
10	Sales Matic	Brandon, FL	51-200	74	8
11	The PT Services Group	Pittsburgh, PA	51-200	65	26
12	Exclusive Calls	Sheridan, WY	201-500	61	3
13	Sumo Scheduler	Atlanta, GA	51-200	57	18
14	Levelup Leads	San Francisco, CA	51-200	56	19
15	Posh Virtual Receptionists	Virginia Beach, VA	51-200	36	16
16	Getvwire	San Francisco, CA	51-200	34	6
17	Automatic Appointments, INC	Santa Monica, CA	51-200	23	3
18	Setmore	Portland, OR	51-200	22	5
19	Cbox Solutions	Los Angeles, CA	51-200	20	2
20	Schedule Engine	Lancaster, PA	51-200	14	7
21	Great Virtual Services	Houston, TX	51-200	14	2
22	Business & Professional Exchange, INC	n/a	51-200	9	2
23	Salesgig	Deer Park, IL	201-500	7	2
24	Cti, LLC	Plymouth, MN	51-200	7	1
25	Pulsestrat	Dover, DE	51-200	6	2

Showing 25 of 479 appointment setting companies based in the United States

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Appointment setting companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 26 HQs

1,318Contacts with mobile numbers

11Emails re-verified in last 30 days

Companies by employee count

1-10

293

11-50

123

51-200

201-500

501-1,000

1,001-5,000

Appointment setting companies by metro

Metro	Companies
Appointment setting companies in New York	26
Appointment setting companies in Los Angeles	24
Appointment setting companies in Austin	15
Appointment setting companies in San Francisco	15
Appointment setting companies in Sheridan	11
Appointment setting companies in Houston	10
Appointment setting companies in Miami	8

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “appointment setting companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 11 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many appointment setting companies are there based in the United States?

There are 479 appointment setting companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Calendly, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most appointment setting companies?

New York leads with 26 headquartered companies, followed by Los Angeles (24) and Austin (15).

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 1,070 verified decision-maker contacts tracked across these 479 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.