Company lists · Data verified August 2026
Top 11 Contact center AI companies based in Bulgaria
There are 30 contact center AI companies headquartered in Bulgaria (RevenueBase, August 2026). RevenueBase tracks 742 professional contacts across them, including 252 with verified work emails and 14 with mobile numbers. Sofia is the largest hub.
This list covers contact center AI companies headquartered in Bulgaria, 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 11 largest contact center AI companies based in Bulgaria
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | Yoummday | 195 |
| 2 | 17 | |
| 3 | 15 | |
| 4 | 10 | |
| 5 | 6 | |
| 6 | 1 | |
| 7 | 3 | |
| 8 | 1 | |
| 9 | 2 | |
| 10 | 1 | |
| 11 | 1 |
Showing 11 of 30 contact center AI companies based in Bulgaria
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Contact center AI companies based in Bulgaria at a glance
As of Aug 28, 2026Companies by employee count
Contact center AI companies by metro
| Metro | Companies |
|---|---|
| Contact center AI companies in Sofia | 20 |
| Contact center AI companies in Sofia City | 2 |
| Contact center AI companies in Varna | 1 |
| Contact center AI companies in Parvomay | 1 |
| Contact center AI companies in Sozopol | 1 |
| Contact center AI companies in Karnobat | 1 |
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 “contact center AI companies”, with match quality audited by blind human judging, and headquartered in Bulgaria.
- 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; 0 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 contact center AI companies are there based in Bulgaria?
There are 30 contact center AI companies headquartered in Bulgaria as of August 2026 (RevenueBase).
What is the largest company on this list?
Yoummday, headquartered in Sofia, tops this list with the largest team on record.
Which city has the most contact center AI companies?
Sofia leads with 20 headquartered companies, followed by Sofia City (2) and Varna (1).
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 252 verified decision-maker contacts tracked across these 30 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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