Our bright team

While each of our lawyers is specialised in one or more practice areas, they nevertheless develop and maintain professional knowledge in general business law. We train our lawyers to be exceptionally well-rounded practitioners in order to ensure that specialisation is achieved without sacrificing the important perspective of the generalist. Strict adherence to quality is reflected in the selection and training of our professionals.

Fredrik Lassenius

Joined Firm:
University of Helsinki, LL.M. 1998
English, Finnish, Swedish, German
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Practice Areas

Mergers and Acquisitions; Corporate and Commercial law; Real Estate

Career and qualifications

Waselius & Wist, Partner 2018-; Waselius & Wist, Specialist Partner 2016-2018; Deloitte Finland, Head of Legal Services (2013-2016); Nokia Corporation, Head of M&A Legal (2010-2012), M&A Legal (2006-2010); Nokia Corporation, CMO Global legal (2004-2006); Roschier, Attorneys Ltd. (1998-2003); Visiting lawyer at Nokia Mobile Phones, Nokia Corporation (2003); Visiting lawyer at Nokia Networks Oy (2000)

Fredrik Lassenius’ practice focuses on M&A and corporate transactions. He has more than 20 years of experience from cross-border, domestic and overseas transactions. His dual experience as both in-house and external counsel and involvement in Nokia’s landmark transactions give him a unique perspective and insight in assisting clients in complex transactions.


International Bar Association, Finnish Bar Association (2002-2004)


* Recommended in M&A by IFLR1000
* Recommended in Commercial, Corporate and M&A by The Legal 500

"Friendly, reliable and commercial. A great partner."
– IFLR1000

"friendly, helpful and available" (Commercial, Corporate and M&A)
– The Legal 500

Recent Publications

* LexGTDT Private M&A 2021 – Finland
* Private Equity 2020 – Finland
* Private mergers and acquisitions in Finland: overview
* M&A in Finland
* Corporate Governance 2017 – Finland
* Private mergers and acquisitions in Finland
* ICLG Corporate Governance 2016 – Finland

Katja Karnola

”Man of Justice” by Veikko Myller