Unity Technologies is the owner of the Unity game engine. Unity Technologies was founded by David Helgason, Joachim Ante, and Nicholas Francis in Copenhagen in 2004.
In terms of financial ownership, Unity Technologies went public on September 18, 2020, under the ticker symbol "U". This means that its shares are traded on the New York Stock Exchange (NYSE), and it is owned by a wide array of private and institutional shareholders.
Unity's initial public offering (IPO) allowed investors around the world to purchase shares and thus gain partial ownership of the company. The largest shareholders typically include the founders, early investors, venture capital firms that invested in Unity before it went public, and institutional investors such as pension funds and mutual fund companies.
Given that the shareholder composition can change with time as shares are bought and sold on the open market, the precise breakdown of ownership would be something to check in the most current financial disclosures and stockholder reports from Unity Technologies or financial databases that track this information.