Olli Markus Klemola

Aventum Partners Oy provides advisory services in merger & acquisition and capital market transactions as well as in corporate restructurings. The firm also provides corporate divestures, asset purchase, equity raising, valuation & fairness opinion, and legal consulting services. The company was founded by Mikko Lauri Sampsa Mannerkoski in 2003 and is headquartered in Helsinki, Finland.

Aventum Oy provides advisory services within mergers and acquisitions, capital market and real estate transactions, and financial advisory. It serves private and public Finland-based corporations and institutions, private equity investors, and international industrial and financial investors active in Finland. The company was founded by Olli Markus Klemola, Harry Heikki Palmroth, Juha Petri Ruohela, and Mikko Lauri Sampsa Mannerkoski on August 29, 2003 and is headquartered in Helsinki, Finland.

Mandatum & Co. Oy provides investment advice for Finnish insurance company portfolios.