Juha Heikki Tapio Jouhki

Biotie Therapies Oy engages in the research, development, and commercialization of pharmaceutical products. The company was founded by Markku Tapani Jalkanen and Sirpa Tuulikki Jalkanen in June 1992 and is headquartered in Helsinki, Finland.

Northern Antibiotics Oy engages in the discovery and development of novel antibiotics against multidrug-resistant gram-negative bacteria. It develops compounds, which are active against difficult-to-treat gram-negative bacteria, such as multi-resistant Escherichia coli, Klebsiella pneumoniae, other species of Enterobacteriaceae, and Acinetobacter baumannii. The company was founded by Martti Sakari Vaara and Timo Ilmari Vaara in 2003 and is headquartered in Helsinki, Finland.

Thomcapital Oy provides financial services. The company was founded in 1987 and is headquartered in Helsinki, Finland.

Dreadnought Finance Oy provides financial services. The company was founded in 2004 and is headquartered in Helsinki, Finland.

Contral Clinics Oy provides a treatment method for excessive drinking and alcoholism. The company was founded by Juha Heikki Tapio Jouhki and John David Sinclair in 1996 and is headquartered in Helsinki, Finland.

Thominvest Oy (Thominvest) is a private equity subsidiary of JOUHKI FAMILY founded in 1911. The firm is headquartered in Helsinki, Finland.

Tenboron Oy engages in the development of new boron carriers and imaging agents for use in boron neutron capture therapy. The company was founded by Erkki Tenhunen and Rabbe Erik Kasten Lähde Slätis on December 21, 2010 and is headquartered in Helsinki, Finland.