Company lists · Data verified August 2026
Top 25 Call center scheduling software companies based in the United States
There are 97 call center scheduling software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 2,679 professional contacts across them, including 802 with verified work emails and 963 with mobile numbers. New York is the largest hub.
This list covers call center scheduling software 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.
The 25 largest call center scheduling software companies based in the United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  Aspect Software | 180 |
| 2 |  Intradiem | 149 |
| 3 | When I Work | 81 |
| 4 |  Assembled | 31 |
| 5 |  Sequence Health A Guideway Care Company | 20 |
| 6 |  Humanity Schedule By TCP Software | 24 |
| 7 |  IEX | 13 |
| 8 |  Playvox By Nice | 16 |
| 9 |  Care Systems, INC | 28 |
| 10 |  Shiftboard, A UKG Company | 26 |
| 11 | Xima Software | 25 |
| 12 |  Call Design | 29 |
| 13 |  Pipkins, INC | 15 |
| 14 | Workplace Systems | 3 |
| 15 |  Communitywfm | 21 |
| 16 |  A Home Work Solution | 4 |
| 17 |  RON Allen Enterprises | 2 |
| 18 |  Coleman Consulting Group, LLC | 11 |
| 19 |  Curacall, INC | 5 |
| 20 | Dvsanalytics, INC | 11 |
| 21 |  Subitup | 8 |
| 22 |  Providerscience LLC | 9 |
| 23 |  Callshaper | 8 |
| 24 |  Jivasoft | 9 |
| 25 |  Great Virtual Services | 2 |
Showing 25 of 97 call center scheduling software companies based in the United States
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Call center scheduling software companies based in the United States at a glance
As of Aug 28, 2026Companies by employee count
Call center scheduling software companies by metro
| Metro | Companies |
|---|---|
| Call center scheduling software companies in New York | 6 |
| Call center scheduling software companies in Chicago | 4 |
| Call center scheduling software companies in Phoenix | 3 |
| Call center scheduling software companies in Atlanta | 3 |
| Call center scheduling software companies in San Diego | 2 |
| Call center scheduling software companies in San Angelo | 2 |
| Call center scheduling software companies in Scottsdale | 2 |
| Call center scheduling software companies in Houston | 2 |
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 “call center scheduling software 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; 1 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 call center scheduling software companies are there based in the United States?
There are 97 call center scheduling software companies headquartered in the United States as of August 2026 (RevenueBase).
What is the largest company on this list?
Aspect Software, headquartered in Boulder, tops this list with the largest team on record.
Which city has the most call center scheduling software companies?
New York leads with 6 headquartered companies, followed by Chicago (4) and Phoenix (3).
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 802 verified decision-maker contacts tracked across these 97 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.
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