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IronSource IPO

IronSource provides mobile app monetization and marketing solutions, helping developers grow and monetize their applications through advertising technology and user acquisition tools. The company became a significant player in the mobile advertising ecosystem before being acquired by a major competitor.

AcquiredUpdated April 2, 2026

Key Facts

IndustryMobile App Monetization
Founded2010
HeadquartersTel Aviv, Israel
Employees~1,500
Websiteironsrc.com
FundingAcquired by Unity Technologies for $4.4B in 2022

About IronSource

IronSource was a leading mobile app monetization and marketing platform that provided tools and services to help app developers grow and monetize their applications. The company's platform enabled developers to integrate various ad formats including rewarded videos, interstitials, and banners while optimizing ad delivery to maximize revenue. IronSource also operated a comprehensive user acquisition platform that helped developers find and acquire high-quality users for their mobile apps through sophisticated targeting and bidding algorithms.

The company was particularly strong in the mobile gaming sector, where its mediation platform and analytics tools became essential infrastructure for many of the world's top mobile game publishers. IronSource's business model created a two-sided marketplace connecting advertisers seeking app users with publishers looking to monetize their audiences. In 2022, Unity Technologies acquired IronSource for $4.4 billion, combining Unity's game development tools with IronSource's monetization and user acquisition expertise to create a more complete platform for mobile app creators.

IPO Status

IronSource went public in June 2021 through a merger with a special purpose acquisition company (SPAC), trading on NYSE under the ticker IS. However, the company's independence was short-lived, as Unity Software announced its intention to acquire IronSource in July 2022 for approximately $4.4 billion in an all-stock deal. The acquisition was completed in November 2022. The Unity-IronSource merger was designed to create a comprehensive platform for mobile app development, monetization, and user acquisition. IronSource now operates as part of Unity's ecosystem, and the stock is no longer traded independently. Unity saw strategic value in combining its game development tools with IronSource's monetization and advertising technology.

Competitors

Frequently Asked Questions

Does IronSource have a stock?

Yes, IronSource had an IPO through a SPAC merger in June 2021. However, the company was subsequently acquired by Unity Software in November 2022 and is no longer publicly traded independently.

When is the IronSource IPO date?

IronSource will not have another IPO as it was acquired by Unity Software in 2022. The company now operates as part of Unity and is not expected to go public again separately.

How can I buy IronSource stock?

You cannot buy IronSource stock directly as it was acquired by Unity Software in 2022. If you want exposure to IronSource's business, you can purchase shares of Unity Software (NYSE: U), which now owns the company.

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