Mr Jan Ollila > Dittmar & Indrenius > Helsinki, Finland > Lawyer Profile

Dittmar & Indrenius

Work Department

M&A & Private Equity


Senior Partner Jan Ollila heads the firm’s Transaction Powerhouse and M&A & Private Equity practice. He focuses on high-level M&A, finance and capital markets transactions and on disputes in relation thereto.

Jan Ollila is known for advising corporate clients, private equity houses and financial institutions on public and private M&A, finance and capital markets transactions and on disputes in relation thereto. He acts as arbitrator and mediator in domestic and cross-border commercial disputes.

Jan was the Managing Partner of the firm in 2007 – 2014 and is the Senior Partner since 2015.

Euromoney’s Expert Guides ranks Jan as one of the 30 best M&A lawyers in the world. He is the only lawyer in Finland and one of only two lawyers in the Nordics on this exclusive list.


Joined Dittmar & Indrenius 1992, Partner 2000, Managing Partner 2007-2014, Senior Partner 2015-


Finnish, Swedish, English, German and Norwegian


Finnish Bar Association, International Bar Association, International Fiscal Association. Mr Ollila is an experienced chairman of boards and general meetings. Currently he is a board member in Aller Media Oy, Brenntag Nordic Oy, Dittmar & Indrenius, IKEA Real Estate Oy, Suomi24 Oy, NEC Finland Oy and Amcham Finland as well as a member of the Supervisory Board of WWF Finland. He is the former President of the Association Européenne d’Etudes Juridiques et Fiscales (2012 – 2015).


University of Helsinki, LLM, 1992

Lawyer Rankings

Finland > Commercial, corporate and M&A

Dittmar & Indrenius specialises in complex, high-value transactions for international corporates and private equity houses, mainly handling matters with a cross-border element. It is also highly experienced in capital markets and public M&A energy and infrastructure deals in the Nordics and Baltics. Practice co-leader Jan Ollila focuses on high-profile transactions; he also is an M&A-related arbitration specialist. Additionally, co-leader Wilhelm Eklund advises on complex and high-value transactions, while managing partner Anders Carlberg is known for his work on capital markets-related transactions.