People

Oliver Vesterlund

Associate | Helsinki

Oliver advises clients in the field of mergers and acquisitions, as well as general corporate, commercial, and contract law.

Oliver originally joined the firm as a knowledge management trainee in 2019 but later continued as an associate trainee. He was appointed as an associate lawyer upon his graduation.


References

Parties:

Applied Materials Inc. (buyer), Picosun Oy (target)

Transaction:

The acquisition of Picosun Oy, an innovator in atomic layer deposition (ALD) technology, primarily for specialty semiconductors.

Deal Value:

Value not public

Role:

Finnish counsel to Applied Materials Inc.

Johan Aalto

Johan Aalto

Partner | Helsinki
johan.aalto@hannessnellman.com
Sofia Saarelainen

Sofia Saarelainen

Associate | Helsinki
sofia.saarelainen@hannessnellman.com
Heidi Haanpää

Heidi Haanpää

Partner | Helsinki
heidi.haanpaa@hannessnellman.com
Juha Lindström

Juha Lindström

Partner | Helsinki
juha.lindstrom@hannessnellman.com
Johanna Haltia-Tapio

Johanna Haltia-Tapio

Specialist Partner | Helsinki
johanna.haltia-tapio@hannessnellman.com
Anniina Jaatinen

Anniina Jaatinen

Associate | Helsinki
anniina.jaatinen@hannessnellman.com
Janne Veneranta

Janne Veneranta

Managing Associate | Helsinki
janne.veneranta@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Marta Kauppinen

Marta Kauppinen

Senior Associate | Helsinki
marta.kauppinen@hannessnellman.com
Oona Eerola

Oona Eerola

Associate | Helsinki
oona.eerola@hannessnellman.com
Joakim Frände

Joakim Frände

Counsel | Helsinki
joakim.frande@hannessnellman.com
Sofia Ampuja

Sofia Ampuja

Senior Associate | Helsinki
sofia.ampuja@hannessnellman.com
Rauli Elenius

Rauli Elenius

Associate | Helsinki
rauli.elenius@hannessnellman.com
Jon Termonen

Jon Termonen

Managing Associate | Helsinki
jon.termonen@hannessnellman.com

Parties

Digital 9 Infrastructure plc (Buyer), Pontos Oy, Taaleri Datacenter Ky, other sellers (Sellers), Ficolo Oy (Target)

Transaction

Sale of Ficolo Oy to Digital 9 Infrastructure plc

Deal Value

EUR 135 million

Role

Counsel to Pontos Oy, Taaleri Datacenter Ky, and other sellers

 

Tuire Kuronen

Tuire Kuronen

Partner | Helsinki
tuire.kuronen@hannessnellman.com
Sini Paajanen

Sini Paajanen

Senior Associate | Helsinki
sini.paajanen@hannessnellman.com
Olli-Pekka Veranen

Olli-Pekka Veranen

Specialist Partner | Helsinki
olli-pekka.veranen@hannessnellman.com
Satu Kokko

Satu Kokko

Associate | Helsinki
satu.kokko@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Joonas Vartia

Joonas Vartia

Associate | Helsinki
joonas.vartia@hannessnellman.com
Jesper Nevalainen

Jesper Nevalainen

Partner | Helsinki
jesper.nevalainen@hannessnellman.com
Sami Niemi

Sami Niemi

Associate | Helsinki
sami.niemi@hannessnellman.com
Anna Nyberg

Anna Nyberg

Associate | Helsinki
anna.nyberg@hannessnellman.com
Julia Ranta

Julia Ranta

Associate | Helsinki
julia.ranta@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner | Helsinki
mikko.huimala@hannessnellman.com
Lauri Putkonen

Lauri Putkonen

Senior Associate | Helsinki
lauri.putkonen@hannessnellman.com

Parties 

Angel Pond Holdings Corporation, MariaDB Corporation Ab

Transaction 

Combination of Angel Pond Holdings Corporation and MariaDB Corporation Ab by way of a domestication merger and cross-border merger, and related transactions

Deal Value 

USD 672 million (implied enterprise value of the combined company)

Role

Finnish counsel to Angel Pond Holdings Corporation

Tuire Kuronen

Tuire Kuronen

Partner | Helsinki
tuire.kuronen@hannessnellman.com
Agda Vähä-Piikkiö

Agda Vähä-Piikkiö

Senior Associate | Helsinki
agda.vaha-piikkio@hannessnellman.com
Heidi Haanpää

Heidi Haanpää

Partner | Helsinki
heidi.haanpaa@hannessnellman.com
Susanna Purovirta

Susanna Purovirta

Senior Associate | Helsinki
susanna.purovirta@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Joonas Vartia

Joonas Vartia

Associate | Helsinki
joonas.vartia@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner | Helsinki
heikki.vesikansa@hannessnellman.com
Harri Vehviläinen

Harri Vehviläinen

Specialist Partner | Helsinki
harri.vehvilainen@hannessnellman.com
Joakim Frände

Joakim Frände

Counsel | Helsinki
joakim.frande@hannessnellman.com
Jesper Nevalainen

Jesper Nevalainen

Partner | Helsinki
jesper.nevalainen@hannessnellman.com
Liisa Vaaraniemi

Liisa Vaaraniemi

Associate | Helsinki
liisa.vaaraniemi@hannessnellman.com
Risto Ojakoski

Risto Ojakoski

Associate | Stockholm
risto.ojakoski@hannessnellman.com
Tuomas Toivonen

Tuomas Toivonen

Counsel | Helsinki
tuomas.toivonen@hannessnellman.com
Hanna Lindberg

Hanna Lindberg

Associate | Helsinki
hanna.lindberg@hannessnellman.com

Parties
Lassila & Tikanoja plc (JV shareholder), Neova Oy (JV shareholder), L&T Biowatti Oy (joint venture company)

Transaction
Counsel to Lassila & Tikanoja plc, a service company that is putting the circular economy into practice, in creating a joint venture with Neova Oy consolidating the parties’ energy wood businesses in Finland and Estonia. The joint venture’s turnover is approximately EUR 100 million and it employs approximately 100 employees.

Deal Value
Not disclosed

Role
Legal counsel to L&T plc

Tuire Kuronen

Tuire Kuronen

Partner | Helsinki
tuire.kuronen@hannessnellman.com
Kaisa Himmanen

Kaisa Himmanen

Senior Associate | Helsinki
kaisa.himmanen@hannessnellman.com
Susanna Purovirta

Susanna Purovirta

Senior Associate | Helsinki
susanna.purovirta@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Jesper Nevalainen

Jesper Nevalainen

Partner | Helsinki
jesper.nevalainen@hannessnellman.com
Antti Nyberg (Alanko)

Antti Nyberg (Alanko)

Partner | Helsinki
antti.nyberg@hannessnellman.com
Milla Männistö

Milla Männistö

Associate | Helsinki
milla.mannisto@hannessnellman.com
Ella Rinne

Ella Rinne

Associate | Helsinki
ella.rinne@hannessnellman.com
Risto Ojakoski

Risto Ojakoski

Associate | Stockholm
risto.ojakoski@hannessnellman.com

Parties 

Virala Acquisition Company Plc, Purmo Group Ltd

Transaction 

Virala Acquisition Company Plc's merger with Purmo Group Ltd.

Deal Value 

EUR 685 million

Role

Counsel to Virala Acquisition Company Plc

Sonja Siggberg

Sonja Siggberg

Partner | Helsinki
sonja.siggberg@hannessnellman.com
Anniina Järvinen

Anniina Järvinen

Managing Associate | Helsinki
anniina.jarvinen@hannessnellman.com
Linnea Lehtonen

Linnea Lehtonen

Associate | Helsinki
linnea.lehtonen@hannessnellman.com
Tommi Kovero

Tommi Kovero

Associate | Helsinki
tommi.kovero@hannessnellman.com
Sini Paajanen

Sini Paajanen

Senior Associate | Helsinki
sini.paajanen@hannessnellman.com
Tero Pikkarainen

Tero Pikkarainen

Associate | Helsinki
tero.pikkarainen@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Heikki Vesikansa

Heikki Vesikansa

Partner | Helsinki
heikki.vesikansa@hannessnellman.com
Stefan Stellato

Stefan Stellato

Managing Associate | Helsinki
stefan.stellato@hannessnellman.com
Isabella Kartila

Isabella Kartila

Associate | Helsinki
isabella.kartila@hannessnellman.com
Antti Nyberg (Alanko)

Antti Nyberg (Alanko)

Partner | Helsinki
antti.nyberg@hannessnellman.com
Pauliina Sutinen

Pauliina Sutinen

Associate | Helsinki
pauliina.sutinen@hannessnellman.com
Axel Hård af Segerstad

Axel Hård af Segerstad

Associate | Helsinki
axel.hard@hannessnellman.com
Wilhelm Sanmark

Wilhelm Sanmark

Associate | Helsinki
wilhelm.sanmark@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner | Helsinki
mikko.huimala@hannessnellman.com
Jenni Heurlin

Jenni Heurlin

Senior Associate | Helsinki
jenni.heurlin@hannessnellman.com
Douglas Essehorn

Douglas Essehorn

Senior Associate | Stockholm
douglas.essehorn@hannessnellman.com
Emma Andersson

Emma Andersson

Associate | Stockholm
Emma.Andersson@hannessnellman.com

Parties

Castellum, Kielo, Blackstone Tactical Opportunities, Brunswick Real Estate.

Transaction

Hannes Snellman acted as counsel to Castellum in its acquisition of property company Kielo from Blackstone Tactical Opportunities and Brunswick Real Estate.

Deal Value

EUR 640 million

Role

Counsel to Castellum

Tapio Teräkivi

Tapio Teräkivi

Partner | Helsinki
tapio.terakivi@hannessnellman.com
Heidi Haanpää

Heidi Haanpää

Partner | Helsinki
heidi.haanpaa@hannessnellman.com
Mikael Stabo

Mikael Stabo

Partner | Stockholm
Mikael.Stabo@hannessnellman.com
Katja Heikkinen

Katja Heikkinen

Managing Associate | Helsinki
katja.heikkinen@hannessnellman.com
Paavo Romakkaniemi

Paavo Romakkaniemi

Associate | Helsinki
paavo.romakkaniemi@hannessnellman.com
Julia Ranta

Julia Ranta

Associate | Helsinki
julia.ranta@hannessnellman.com
Milla Männistö

Milla Männistö

Associate | Helsinki
milla.mannisto@hannessnellman.com
Mikael Wood

Mikael Wood

Associate | Helsinki
mikael.wood@hannessnellman.com
Andreas Wingren

Andreas Wingren

Associate | Stockholm
andreas.wingren@hannessnellman.com
Alexander Lindqvist

Alexander Lindqvist

Associate | Stockholm
alexander.lindqvist@hannessnellman.com
Oliver Vesterlund

Oliver Vesterlund

Associate | Helsinki
oliver.vesterlund@hannessnellman.com
Susanna Purovirta

Susanna Purovirta

Senior Associate | Helsinki
susanna.purovirta@hannessnellman.com
Mikko Huimala

Mikko Huimala

Partner | Helsinki
mikko.huimala@hannessnellman.com
Heikki Majamaa

Heikki Majamaa

Specialist Partner | Helsinki
heikki.majamaa@hannessnellman.com
Ingrid Remmelgas

Ingrid Remmelgas

Senior Associate | Helsinki
ingrid.remmelgas@hannessnellman.com
Jenni Heurlin

Jenni Heurlin

Senior Associate | Helsinki
jenni.heurlin@hannessnellman.com

Education and Professional Background

  • Associate, Hannes Snellman Attorneys, 2021–
  • Master of Laws, University of Helsinki 2021
  • Associate Trainee & Thesis Trainee, Hannes Snellman Attorneys, 2019–2020
  • Knowledge Management Trainee, Hannes Snellman Attorneys, 2019
  • Legal Trainee, Asianajotoimisto Tapio Mäki, 2017–2019