Märt Luuk has a bachelor’s degree from Tallinn University of Technology. He is a member of the Supervisory Boards of AS Harju Ehitus, AS Harju KEK, AS Laagri Vara, OÜ KEK Kinnisvara, Valdmäe Tööstuspargi OÜ, AS Taakes, AS Entek, H11 OÜ, KEKE OÜ and Harju 4 OÜ. In addition, he is a shareholder and Management Board member of HE Ehituse ja Kinnisvara OÜ and OÜ Landler Holding, as well as a shareholder of Kindluse Kodud OÜ.
As of 31 December 2025, Märt Luuk owns 45,503 shares of Harju Elekter. His direct holding is 0.25%, and his indirect holding is 1.21%.