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Castrén & Snellman

Finland

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Key contacts
Managing partner: Jarno Tanhuanpää
Quick facts
Number of lawyers

165

Number of partners

33

Languages

English, Finnish, the Scandinavian languages, Russian, German, French, Italian

Founded in

1888

Key practice areas
Banking and finance
Banking
Capital markets
Capital markets : Debt
Capital markets : Equity
Financial and corporate
M&A
Energy and infrastructure
Project development
Firm overview

Castrén & Snellman is a law firm of approximately 300 people based in Helsinki, Finland. In other parts of the world we work with an extensive international network of law firms. Ensuring our clients’ success and safeguarding their legal rights is our business. We are a trusted legal advisor in mergers and acquisitions, disputes and other specialised fields of business law. We combine top-tier legal expertise, strategic business savvy and technology to give our customers a competitive edge.

Key practice areas
  • Banking
  • Capital markets: Debt
  • Capital markets: Equity
  • Private equity
  • Private equity funds
  • Project development
  • Project finance
  • Real estate finance
  • Real estate funds
  • Restructuring and insolvency
  • M&A
  • Financial restructuring
  • Competition
  • Financial services regulatory
Address:
Eteläesplanadi 14
Helsinki 00131
PO Box 233
Tel:+358 20 7765 765 Email:Contact Us Web Address:https://www.castren.fi/
Rankings published in 2026
Banking and finance
Tier 1
16 firms ranked
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Tier 1

Borenius
10 practice areas
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Castrén & Snellman
9 practice areas
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Hannes Snellman
9 practice areas
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Krogerus
9 practice areas
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Roschier
9 practice areas
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Tier 2

Avance
9 practice areas
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Bird & Bird
10 practice areas
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Dittmar & Indrenius
9 practice areas
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HPP Attorneys
5 practice areas
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Waselius
9 practice areas
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White & Case
9 practice areas
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Tier 3

DLA Piper Finland
9 practice areas
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Tier 4

Dottir Attorneys
7 practice areas
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Merilampi Attorneys
6 practice areas
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Notable

EY Law Finland
4 practice areas
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Eversheds Sutherland
5 practice areas
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Capital markets : Debt
Tier 1
11 firms ranked
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Tier 1

Borenius
10 practice areas
View full profile
Castrén & Snellman
9 practice areas
View full profile
Krogerus
9 practice areas
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Roschier
9 practice areas
View full profile
White & Case
9 practice areas
View profile

Tier 2

Hannes Snellman
9 practice areas
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Waselius
9 practice areas
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Tier 3

DLA Piper Finland
9 practice areas
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Tier 4

Avance
9 practice areas
View profile
Bird & Bird
10 practice areas
View profile
Dittmar & Indrenius
9 practice areas
View full profile
Capital markets : Equity
Tier 1
13 firms ranked
View full list

Tier 1

Borenius
10 practice areas
View full profile
Castrén & Snellman
9 practice areas
View full profile
Krogerus
9 practice areas
View full profile
Roschier
9 practice areas
View full profile
White & Case
9 practice areas
View profile

Tier 2

Avance
9 practice areas
View profile
Hannes Snellman
9 practice areas
View full profile

Tier 3

Bird & Bird
10 practice areas
View profile
Dittmar & Indrenius
9 practice areas
View full profile

Tier 4

DLA Piper Finland
9 practice areas
View profile

Notable

Dottir Attorneys
7 practice areas
View full profile
EY Law Finland
4 practice areas
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Merilampi Attorneys
6 practice areas
View profile
M&A
Tier 2
20 firms ranked
View full list

Tier 1

Avance
9 practice areas
View profile
Krogerus
9 practice areas
View full profile
Roschier
9 practice areas
View full profile

Tier 2

Bird & Bird
10 practice areas
View profile
Borenius
10 practice areas
View full profile
Castrén & Snellman
9 practice areas
View full profile
Dittmar & Indrenius
9 practice areas
View full profile
Hannes Snellman
9 practice areas
View full profile
White & Case
9 practice areas
View profile

Tier 3

DLA Piper Finland
9 practice areas
View profile
Dottir Attorneys
7 practice areas
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PwC Legal
2 practice areas
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Waselius
9 practice areas
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Tier 4

EY Law Finland
4 practice areas
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Eversheds Sutherland
5 practice areas
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HPP Attorneys
5 practice areas
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KallioLaw
6 practice areas
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Notable

Avail Attorneys
1 practice area
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Merilampi Attorneys
6 practice areas
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Wiidare
1 practice area
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Project development
Tier 2
14 firms ranked
View full list

Tier 1

Borenius
10 practice areas
View full profile
Krogerus
9 practice areas
View full profile
Roschier
9 practice areas
View full profile

Tier 2

Avance
9 practice areas
View profile
Castrén & Snellman
9 practice areas
View full profile
HPP Attorneys
5 practice areas
View full profile
Hannes Snellman
9 practice areas
View full profile

Tier 3

Bird & Bird
10 practice areas
View profile
Dittmar & Indrenius
9 practice areas
View full profile
Waselius
9 practice areas
View full profile

Tier 4

DLA Piper Finland
9 practice areas
View profile

Notable

KallioLaw
6 practice areas
View profile
Kivioja Attorneys at Law
1 practice area
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Lieke Attorneys
1 practice area
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Linked Reviews
Financial and corporate

Castrén & Snellman is among the oldest Finnish law firms with roots going back to 1888. It is a full-service law firm, based in Helsinki, and it boasts the largest number of employees out of all the Finnish law firms. 

  

Highlights 

 

In banking and finance, the firm has a particular strength in advising on large scale project financings in Finland. For example, the firm assisted NREP in the development of residential construction project at Arabia Shopping Centre. The building, one constructed, is expected to be one of the most energy efficient residential buildings in Finland.  

Another notable highlight of the firms work includes acting as legal adviser to Purmo Group, a listed company specialized in sustainable indoor climate comfort solution, on the voluntary cash tender offer made by Project Grand Bidco (UK) Limited for the total issued and outstanding shares in Purmo Group. The firm also played a role in the delisting of Purmo Group from Nasdaq Helsinki Stock Exchange as a result of the acquisition 

Testimonials

2025

 

Always super friendly, always available, very pragmatic advice. Janne Lauha for securities market and Outi Tähtinen for employment law are true experts with whom it's always a pleasure to work with. Very skillful, and quickly understand the "beef". Kiti Karvinen from Competition law practice is also very pragmatic, responsive, skillful and quickly understands the core of the problem. All these three experts know how to help the business people and provide top-notch advice!” - Financial service regulatory 

 

“M&A Team: Deep sector insight. Practical advice. Pragmatic, responsive and sensible. A pleasure to work with.” - M&A 

 

“Close collaboration feels like an extension to own team. Not working with a law-firm, but more like working with colleagues. Strong knowledge of core-team, backup by in-house and network expertise.” - M&A  

 

“Business oriented, quick solutions, know the company well, thinking ahead” - M&A 

 

“They demonstrate a high level of professionalism while remaining approachable and pragmatic. They carry out their duties independently, yet they never make decisions on behalf of the client without prior consultation and explicit consent.” - M&A 

 

 

“Impressive depth and width of services. Top class energy team, very strong in environmental law. Very responsive, understands customer point of view.” - Project development  

 

“They are always on the point. Jaakko Honkala and Jerker Pitkänen add never unnecessary legal wordings just for showing their excellent skills. This dynamic duo let the agreement shine and do not need to be on a spotlight. They always deliver on time.” - Project development 

 

“Quick & professional service that was delivered according to the agreed time schedule and budget. Challenging misconceptions from different stakeholders and basing the requirements to the specific case & law. Follow-up questions about possible additional support.” - Project development  

 

“Castrén & Snellman team know our company and our special circumstances well. They were able to steer the legal work and manage legal risks in the complex legal structure well. Their response time and accuracy is impeccable, and it is never an issue if they are able to deliver.” - Project development  

Key clients 

 

Fortum Corporation, Pernod Ricard, Multitude SE, Evli, Purmo Group, SATO, Nevel Oy,Verne Global 

16 results16 results
Deal Highlights
47 results47 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Ålandsbanken Abp; Borgo AB - Bond issue
2021-09-13
Castrén & Snellman
Finland
Bond issue
Janne Lauha
Ålandsbanken Abp, Borgo AB
Issuer
Norrhydro Group Plc - IPO
2021-12-01
Castrén & Snellman
Finland
IPO
Merja Kivelä
Norrhydro Group Plc
Issuer
Alexandria Pankkiiriliike Oyj - IPO
2021-05-11
Castrén & Snellman
Finland
IPO
Merja Kivelä
Alexandria Pankkiiriliike Oyj
Issuer
Digital Workforce Services Plc - IPO
2021-12-03
Castrén & Snellman
Finland
IPO
Janne Lauha
Digital Workforce Services Plc
Issuer
Lemonsoft Oy - IPO
2021-11-17
Castrén & Snellman
Finland
IPO
Merja Kivelä
Lemonsoft Oy
Issuer
EcoUp Oy - IPO
2021-09-29
Castrén & Snellman
Finland
IPO
Merja Kivelä
EcoUp Oy
Issuer
Loihde Oyj - IPO
2021-09-27
Castrén & Snellman
Finland
IPO
Janne Lauha
Loihde Oyj
Issuer
Solwers Oyj - IPO
2021-06-18
Castrén & Snellman
Finland
IPO
Merja Kivelä
Solwers Oyj
Issuer
Danske Bank A/S Finland Branch; Toivo Group Oyj - IPO
2021-06-11
Castrén & Snellman
Finland
IPO
Janne Lauha
Danske Bank A/S Finland Branch, Toivo Group Oyj
Underwriter
Netum Group; Evlin Bank Plc; - IPO
2021-06-02
Castrén & Snellman
Finland
IPO
Janne Lauha
Netum Group, Evlin Bank Plc
Underwriter
Merus Power Oyj; Alexander Corporate Finance Ltd - IPO
2021-06-08
Castrén & Snellman
Finland
IPO
Merja Kivelä
Merus Power Oyj, Alexander Corporate Finance Ltd
Underwriter
Mandatum Life - M&A
Castrén & Snellman
Finland
M&A
Janne Lauha
Mandatum Life
Seller
Bilot Oyj - M&A
Castrén & Snellman
Finland
M&A
Merja Kivelä
Bilot Oyj
Merger party
Carnegie Investment Bank AB; Alexander Corporate Finance Oy - Secondary share offering
2021-02-23
Castrén & Snellman
Finland
Secondary share offering
Merja Kivelä
Carnegie Investment Bank AB, Alexander Corporate Finance Oy
Underwriter
Cargotec Corp - M&A
Castrén & Snellman
Finland
M&A
Merja Kivelä
Cargotec Corp
Merger party
Boreo Plc - M&A
Castrén & Snellman
Finland
M&A
Merja Kivelä
Boreo Plc
Merger party
Enedo Plc and lead manager UB Securities Ltd - Secondary share offering
2021-04-09
Castrén & Snellman
Finland
Secondary share offering
Merja Kivelä
Enedo Plc and lead manager UB Securities Ltd
Issuer
Next Games Corp and lead manager Alexander Corporate Finance Ltd - Secondary share offering
2021-03-18
Castrén & Snellman
Finland
Secondary share offering
Merja Kivelä
Next Games Corp and lead manager Alexander Corporate Finance Ltd
Issuer
Caverion Corp. - M&A
2022-11-03
Castrén & Snellman
Finland
M&A
Caverion Corp.
Target
Evli Bank Plc - M&A
2022-02-24
Castrén & Snellman
Finland
M&A
Janne Lauha
Evli Bank Plc
Merger party
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