page background: 

Jan Ollila

Employee big image: 

Contact information

+358 9 6817 0108
+358 50 599 0235


Mirkka Ilonen

+358 9 6817 0137

Jan Ollila

Senior Partner, Head of M&A & Private Equity

Jan Ollila advises corporate clients, private equity houses and financial institutions on 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 is recommended by Chambers Global and Europe, Legal 500, IFLR, PLC Which Lawyer, Best Lawyers and Who's Who Legal in the fields of M&A, Corporate, Banking & Capital Markets and Dispute Resolution.

In 2017 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.

Jan is a member of the Finnish Bar Association, the International Bar Association and the International Fiscal Association.

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

Education: University of Helsinki (LL.M., 1992)

Languages: Finnish, Swedish, English, German and Norwegian

Publications & Lectures: Articles, publications and lectures on M&A, Finance & Capital Markets and Dispute Resolution


"Excellent judgment. Great at managing the project, the client, and the other side." -IFLR1000, Financial and corporate 2017, Client feedback

"Very experienced, very aware of what needs to be achieved and is always trying to get an amicable solution" - Chambers Global and Europe 2017

According to clients, "he has a great personality". - Chambers Global and Europe 2017

"He is good at adapting, explaining, putting things together and finding the pros and cons; he is everything a lawyer should be," clients say. - Chambers Global and Europe 2015

"Managing partner Jan Ollila is one of the leading figures in Finnish corporate and M&A." - Chambers Global and Europe 2014

"Alongside his high-profile M&A practice, Jan Ollila has a long-standing presence in dispute resolution. He is noted for a focus on high-level, complex arbitration matters." – Chambers Global 2014 

"The "extremely skilful" Jan Ollila is the firm's leading M&A practitioner." – Chambers Global 2013

"Managing partner Jan Ollila couples his formidable M&A experience with a robust presence in major arbitration cases." Chambers Global 2013

"Jan Ollila is known to be "a creative thinker when it comes to finding solutions." – Chambers Europe 2012

"Jan Ollila excels in both arbitration and litigation relating to M&A and financing arrangements." Chambers Global 2012

"Jan Ollila handles complex M&A deals with cross-border elements. He is an excellent negotiator and “has the skill to grasp the relevant points exceptionally well.” – Chambers Europe 2011

Positions of Trust:

  • Board member of several companies
  • Board member of the Finnish-American Chamber of Commerce, AmCham Finland
  • President of the Association Européenne d'Etudes Juridiques et Fiscales, 2012 - 2015


Print page »