: These firms often participated in the modernization of Omsk's energy infrastructure, such as the hot-dip galvanizing projects at the Omsk Electromechanical Plant or engine oil production lines.
: In recent years, several large Omsk-based entities have faced high-profile legal battles. For instance, Omskgorgaz , a major local utility, recently underwent bankruptcy proceedings following a 2.2 billion ruble lawsuit involving former government officials.
: Small technical collectives formed in the 1990s or early 2000s to service state-owned giants like Gazpromneft or local power utilities.