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Key contacts
Managing Partner: Anna-Maria Tamminen
Quick facts
Established in

1909

Languages

English, Finnish, Swedish

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

Hannes Snellman is a leading Finnish business law firm entrusted by its clients in matters of critical importance. Hannes Snellman’s team of 250 dedicated professionals provides clients with the smartest decisions in demanding situations. The firm’s expertise spans a wide range of legal practice areas and industries.

Key practice areas
  • Administrative Proceedings
  • Artificial Intelligence
  • Capital Markets
  • Competition & Regulatory
  • Corporate Advisory
  • Compliance & Investigations
  • Criminal Investigations and Proceedings
  • Dispute Resolution
  • Employment
  • Energy
  • Environment & Natural Resources
  • Corporate Sustainability and ESG
  • Finance
  • Financial Services Regulation
  • Foreign Direct Investment (FDI)
  • Infrastructure
  • Intellectual Property
  • Joint Ventures & Commercial Cooperation
  • M&A, Private
  • M&A, Public
  • Private Equity & Financial Sponsors
  • Projects & Construction
  • Public Procurement
  • Real Estate
  • Restructuring & Insolvency
  • Tax
  • Technology & Data
Sector expertise
  • Consumer & Retail
  • Data Centers & Digital Economy
  • Defence
  • Energy & Infrastructure
  • Engineering & Machinery
  • Environment, Natural Resources & Circular Economy
  • Financial Services & Insurance
  • Healthcare & Life Sciences
  • Mobility, Transportation & Logistics
  • Public Sector
  • Real Estate & Construction
  • Space
  • Technology, Media & Telecom
Address:
Eteläesplanadi 20 / P.O. Box 333
00130 / 00131
Helsinki
Tel:+358 9 228 841 Fax:+358 9 177 393 Email:Contact Us Web Address:http://www.hannessnellman.com
Rankings published in 2026
Banking and finance
Tier 1
16 firms ranked
View full list

Tier 1

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

Tier 2

Avance
9 practice areas
View profile
Bird & Bird
10 practice areas
View profile
Dittmar & Indrenius
9 practice areas
View full profile
HPP Attorneys
5 practice areas
View full profile
Waselius
9 practice areas
View full profile
White & Case
9 practice areas
View profile

Tier 3

DLA Piper Finland
9 practice areas
View profile

Tier 4

Dottir Attorneys
7 practice areas
View full profile
Merilampi Attorneys
6 practice areas
View profile

Notable

EY Law Finland
4 practice areas
View full profile
Eversheds Sutherland
5 practice areas
View profile
Capital markets : Debt
Tier 2
11 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

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

Tier 3

DLA Piper Finland
9 practice areas
View profile

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 2
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
View full profile
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
View full profile
PwC Legal
2 practice areas
View full profile
Waselius
9 practice areas
View full profile

Tier 4

EY Law Finland
4 practice areas
View full profile
Eversheds Sutherland
5 practice areas
View profile
HPP Attorneys
5 practice areas
View full profile
KallioLaw
6 practice areas
View profile

Notable

Avail Attorneys
1 practice area
View profile
Merilampi Attorneys
6 practice areas
View profile
Wiidare
1 practice area
View profile
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
View profile
Lieke Attorneys
1 practice area
View full profile
Linked Reviews
Financial and corporate

Hannes Snellman is a prominent Nordic law firm based in Finland. The firm has been assisting in complex and high - profile business transactions since 1909 and is led by Managing Partner Anna Maria Tamminen.

  

Highlights 

 

The firm played a key role acting as counsel to Sampo plc in a recommended public exchange offer for the shares in Topdanmark. The exchange offer valued the entire outstanding share capital of Topdanmark at DKK 33 billion.The class A shares have been admitted to trading and officially listed on Nasdaq Copenhagen.  

Another highlight of the firms work throughout the research period includes acting as counsel to Sibanye Stillwater’s subsidiary Keliber Oy with respect to local Finnish law matters in its €500 million green loan financing for the Keliber lithium project. 

Testimonials

“They have broad expertise and are a full service law firm.” - Bank lending  

 

“No matter what kind of legal issue we have Hannes Snellman is always able to provide us an expert. They have great expertise with PPA's and construction projects. I have also really appreciated their continuous support with financing and keeping up with what we need to provide to banks at every step during the project.” - Banking and finance  

 

“They are great experts, particularly they can handle complex processes and client asks.” - Capital markets equity  

 

“Excellent management of the legal process, combining both Finnish and Danish (external) legal teams as one firm, and being able to analyze challenging legal issues in the light of Finnish and Danish regulation. A wide range of skills and knowledge across different areas, also deep understanding of the insurance sector.” - Capital markets debt  

 

“They have a commercial mindset and are being supportive throughout the process with valuable legal advise. They became an intergrated member of our team rather than a third party.” - Project finance 

Key clients  

Key clients of the firm in banking and finance include Nordea Bank, Ahlstrom Capital, Danske Bank, Myrsky Energia and Nykredit Realkredit. 

Key clients of the firm in capital markets include SEGA Europe, SEGA Corporation, Uponor Corporation, the Finnish Prime Minister’s Office, ACCEL-KKR and Cargotec Corporation. 

Key clients of the firm in M&A include Cargotec Corporation, KONE Corporation, Lassila & Tikanoja, YIT Corporation and Vaaka Partners.

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