ironSource was a Tel Aviv-based mobile app monetization and user-acquisition company whose tools (ad mediation, the ironSource Ads network, and the Supersonic game publishing label) served app developers and advertisers. It listed on the NYSE via a SPAC merger with Thoma Bravo Advantage in 2021 and merged into Unity Technologies in November 2022. Unity sunset the ironSource Ads Network on April 30, 2026 and sold Supersonic to Tripledot in August 2026.
ironSource has been acquired
This company is no longer available on our private secondary market.
Company data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Founded
2010
Employees
1,001–5,000
Total Funding
$505M
4 rounds
Latest Valuation
$1.75B
Oct 1, 2019
Unity (8-K) to sunset the ironSource Ads Network on April 30, 2026 and divest Supersonic, exiting ironSource's non-strategic ad businesses.
The former ironSource business is being wound down inside Unity; Supersonic later sold for $40M.
Funding data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Total raised $505M across 4 rounds
Last updated 09-29-2026
| Date | Round | Amount Raised | Valuation | Lead Investors |
|---|---|---|---|---|
| Oct 2019 | Secondary (PE) | $374M | $1.75B | CVC Capital Partners |
| Feb 25, 2015 | Growth round (extension) Press release | $20M | — | Access Industries |
| Sep 23, 2014 | Growth round TechCrunch | $85M | — | Saban Capital Group |
Tomer Bar-Zeev
Co-Founder; former CEO
Arnon Harish
Co-Founder; former President
Tamir Carmi
Co-Founder; former COO
Eyal Milrad
Co-Founder; former Chief Strategy Officer
Omer Kaplan
Co-Founder; former Chief Revenue Officer
Assaf Ben Ami
Former CFO
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