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Suomeksi

Janne Ruohonen

Professor, business law
Faculty of Management and Business | Business Studies | Business Law and Tax Law
Tampere University
janne.ruohonen [at] tuni.fi (janne[dot]ruohonen[at]tuni[dot]fi)
+358503186030
City Centre Campus
https://orcid.org/0000-0002-9134-2799

About me

Dr. Janne Ruohonen is Professor of Business Law (full professor) and Director of Master's Program on Auditing. 

During the academic year 2025-26, Ruohonen will also be a visiting professor at King's College London.

He is Adjunct Professor (docent) in company law at the University of Turku. Dr. Ruohonen's research interest is focused on business law, especially company law and audit law. He is specialised in company directors, municipally owned companies (MOCs) and sustainability reporting of companies (EU). His doctoral thesis dealt with limited liability company's profit distribution and solvency test. He has  written dozens of scientific articles about company law & auditing. He is an experienced leader of research projects. He's a member of editorial board of European Company Case Law (ECCL) and Nordic Journal of Company Law (NTS). He is member of Law and Tax Committee of Tampere Chamber of Commerce and Industry (2015-).

Responsibilities

Lectures and Supervision in 2025-2026

Master's Degree:

TILTAM.KTM.399 Pro gradu -tutkielmaseminaari, T&A (KTM) (Periods I-IV), responsible teacher

KAT.YRVE.326 Corporate Governance, Sustainability and Compliance (Period II), responsible teacher

Director of Master's Program on Auditing (Periods I–IV)

Bachelor's Degree:

KAT.YRVE.202 Yritysjuridiikan perusteet (Periods II-IV), responsible teacher

KAT.YRVE.234 Tilintarkastusoikeus (Period III), responsible teacher

KAT.YRVE.272 Yrityksen kestävyysraportointi ja sääntely (Period IV), responsible teacher

KAT.YRVE.270 Introduction to Business Law and Tax Law (Period I-IV)

Fields of expertise

Company law, company directors, audit law, sustainability reporting, MOCs.

Main positions of trust

Leader of several research projects:
Creditor protection project (Prime Minister's Office, 2019-2020)  
Munical companies (The Foundation for Municipal Development, 2022-2023)
Expertize of the board of listed company (Finnish Foundation for Share Promotion, 2022-2023)
Sustainability Reporting of Companies (Foundation for Economic Education, 2023-2024)
Company Boardwork and diversity (2024-)
Expertize of boards of MOCS (2024-2025)

Positions of trust in scientific publications:
European Company Case Law, member of the editorial board
Nordic Journal of Company Law, member of the editorial board
SSRN Nordic & European Company Law Series, member of the advisory board

Positions of trust in business:
OP Financial Group, chair of the nomination committee
Chair of the supervisory board of Pirkanmaan OP (co-operative bank of Pirkanmaa)
Chair of the board of Sisä-Suomen OP-liitto (Inner Finland Association of Banks)
Chair/member of several nomination committees


 

Research fields

Business law

Funding

Leader of several scientific projects (funded by Prime Minister's Office, Private Foundations, Tampere Chamber of Commerce)

Research career

Full list of publications, please see https://researchportal.tuni.fi/en/persons/janne-ruohonen 

Selected publications

All publications, see https://researchportal.tuni.fi/en/persons/janne-ruohonen 

MOCs, see: https://research.tuni.fi/kuntayhtio/

Latest books

Ruohonen, Janne – Vahtera, Veikko – Penttilä, Seppo: Kuntayhtiö (2025 / Alma Talent). Book on Company Law. https://kirjakauppa.almainsights.fi/sivu/tuote/kuntayhtio/5221402 
Ruohonen, Janne et al (toim.): Varmennus ja kestävyysraportoinnin muuttuva luonne. (2025 / TUP). https://urn.fi/URN:ISBN:978-952-359-066-3 (open access)

Tilintarkastaja osakeyhtiön hallinnon tarkastajana (2020 / Alma Talent). Book on Audit Law. https://shop.almatalent.fi/sivu/tuote/kuntayhtio/2990900 

Doctoral thesis

Ruohonen Janne. (2012). Osakeyhtiön voitonjaon maksukykytesti ja vastuu maksukyvyn säilymisestä [The Solvency Test of Profit Distribution in a Limited Liability Company and the Liability to Ensure Solvency]. Väitöskirja. Doctoral Thesis. Tampere: Tampere University Press. (Acta Universitatis Tamperensis 1723). Saatavilla osoitteesta / Available: http://edilex.fi/kirjat/10382.pdf  

Three highlights from the research

Ruohonen, J., Salminen, L. & Vahtera, V. (2025): Expertise Requirements in the Nomination Process of Board of Directors in Listed Companies. European Company Case Law. 3, 1, s. 5-26.


Ruohonen, J. & Kullas, H. (2024): The Assurance of Corporate Sustainability Reports and the Renewed Role of Certified Auditors. European Company and Financial Law Review 3-4/2024. https://doi.org/10.1515/ecfr-2024-0013 (open access)

Ruohonen, J. et al (2023): The abolishment of the minimum share capital requirement for private limited liability companies in Finland. In: Nordic Journal of Company Law. https://urn.fi/URN:NBN:fi:tuni-202301111316 (open access)

Latest publications

All publications

CV