Heidi Haanpää

+358 9 2288 4206
+358 50 493 8834
Rebecca Ramsurrun

Assistant's telephone:

+358 9 2288 4364


Heidi focuses on mergers and acquisitions, advising both corporate and private equity clients in a wide range of private M&A and public M&A transactions, distressed M&A and other corporate arrangements. In addition, she advises clients in corporate law and corporate governance questions.

Heidi acted as the secretary to the working group preparing the revised Helsinki Takeover Code that entered into force in 2014.


  • Counsel to Beneq Oy and its shareholders in the sale of Beneq to Qingdao Sifang SRI Intellectual Technology Co. Ltd., 2018
  • Finnish counsel to ABB in its acquisition of GE Industrial Solutions for USD 2.6 billion, 2018
  • Counsel to Green Horizon Renewables in the acquisition of over 70% stake in Winda Power, 2018

  • Counsel to EQT in minority investment in Anticimex, 2017

  • Counsel to majority sellers in the sale of a majority of shares in Quattro Mikenti Group Oy to Adelis Equity Partners Fund I AB by Henri Juva and other sellers

  • Counsel to Oriola Corporation in the joint venture with Kesko Corporation to establish a chain of health, beauty and wellbeing stores across Finland, with the plan to expand the business to include pharmaceuticals if the legislation is amended

  • Counsel to Triton in its acquisition of Fläkt Woods

  • Counsel to the State of Finland in the acquisition of Gazprom’s shares in Gasum

  • Counsel to Triton in the sale of Suomen Lähikauppa Oy to Ruokakesko Oy, a subsidiary of Kesko Corporation

  • Counsel to Okmetic Oyj in the voluntary recommended public tender offer of approximately EUR 170 million by National Silicon Industry Group for all shares and option rights in Okmetic Oyj

  • Counsel to Valmet Oyj in its acquisition of the process automation systems business from Metso Oyj

  • Counsel to the State of Finland in the acquisition of 51% of the shares in Gasum Oy from E.ON and Fortum Oyj. Value EUR 510 million

  • Counsel to Advent International and Bain Capital in the acquisition of Nets from a group of 186 primarily Danish and Norwegian banks at DKK 17 billion
  • Finnish counsel to SoftBank Corp. and GungHo Online Entertainment, Inc., Japanese corporations, in their USD 1.53 billion acquisition of a 51% stake in Supercell Oy, a Finnish online gaming company
  • Finnish counsel to Microsoft Corporation in its EUR 5.44 billion acquisition of Nokia Devices & Services from Nokia Corporation
  • Counsel to Vaaka Partners Oy in the acquisition of Solita Oy
  • Counsel to Beneq Oy and its existing shareholders in the investment by Rusnano in Beneq as a combination of capital injection and share purchase
  • Counsel to UPM-Kymmene Corporation in the sale of UPM’s packaging paper business to Billerud, at the value of approximately EUR 130 million


  • Heidi is ranked as a Notable practitioner in M&A in the 2018 and 2019 editions of IFLR1000


  • Member of the Finnish Bar Association since 2010
  • Member of the Finnish Company Law Association


  • Partner, Hannes Snellman, 2017
  • Managing Associate, Hannes Snellman, 2014
  • Visiting lawyer, Allen & Overy LLP London, 2011
  • Senior Associate, Hannes Snellman, 2010
  • Associate Lawyer, Hannes Snellman, 2006
  • Master of Laws, University of Turku, 2006