Our main practices are dispute resolution, litigation, national and international arbitration as well as financial and corporate crime cases. We are routinely praised for our winning attitude and rigorous commitment to defending our clients’ best interests.

The firm.

Kotiranta & Co Attorney at Law Ltd was established in 2010 by Dr. Kai Kotiranta. Before establishing his own boutique law firm, Dr. Kotiranta served as a partner and the head of the Dispute Resolution and Insolvency group at a top-tier law firm in Finland.

Dr. Kotiranta had the idea of establishing a small-scale, exclusive boutique law firm when exploring ways of returning to the profession’s roots in genuine legal advocacy. Today, we focus on our areas of top expertise – white collar defence, commercial litigation and both national and international arbitration – in which we are renowned and have wide experience.

At KCO, the firm’s partner meets with each client on a continual basis, providing personal advice and creating individual solutions to challenging and complex legal problems.

Our clients are publicly listed national and international corporations and small and mid-size companies, entrepreneurs, corporate board members and executive directors, as well as wealthy private persons. Our multinational client base comes from Finland and countries both east and west.

The Founding Partner.

Born in 1968, Dr. Kai Kotiranta is the founding partner of Kotiranta & Co Attorney at Law Ltd. Dr. Kotiranta graduated in 1997, was admitted to the Bar in 2001 and received his doctoral degree in 2014. Dr. Kotiranta is highly rated for his courtroom performances and his handling of a succession of headline dispute resolution and white-collar crime defence cases, many of which are landmarks in Finnish legal practice. His clients appreciate his professionalism, talent for creating innovative strategies and defence lines, and his direct, highly approachable style.

Dr. Kotiranta is a member of the Finnish Bar Association, the Finnish Lawyers Association, the Juridiska Föreningen i Finland, the Finnish Arbitration Association, the International Bar Association, the London Court of International Arbitration and the Association of Swiss Arbitration. He is an active member of Finland’s legal community, serving the Finnish Bar Association and acting as a lecturer for legal faculties in universities.

The Practice.

Kotiranta & Co Attorney at Law Ltd has been continuously ranked as a top-tier firm within its core practices by a wide range of international ranking societies e.g. Chambers & Partners Europe, Chambers & Partners Global, Legal500 and Best Lawyers. Dr. Kotiranta has also been referred to as one of Finland’s top litigators and defence counsels in white-collar crime cases.

Our core practice areas are:

Dispute Resolution of Commercial Disputes.

All type of Commercial Agreements, Sale of Goods, Distribution and Agency Agreements, M&A Contentious Matters, Damages.

National and International Arbitration.

The Arbitration Institute of the Finland Chamber of Commerce Arbitrations, ICC Arbitrations, Ad Hoc Arbitrations.

White-Collar Crime Defence in Challenging Financial Criminal Cases.

Bribery, Tax Fraud, Bookkeeping Offence, Money Laundering, Marketing Crime and Fraud Cases.

Market Offence and Securities Crime Cases and Securities Law Advisory.

Insider Trading, Market Manipulation and Disclosure Obligations Cases, Stock Exchange Rules, the Financial Supervisory Authority Rules and Other Listed Companies and Market Regulation, Takeover Bids and Squeeze Out Proceedings.

Corporate Disputes and Corporate Law Advisory.

Shareholders’ Agreement Disputes, Corporate Crime Cases, Advisory for Top Executives and Board Members.

Competition Disputes and Competition Law Advisory.

European Law Cases, Marketing Law Cases, Market Practises, Cartel Cases, Damages.



Kotiranta & Co Attorney at Law Ltd – Asianajotoimisto Kotiranta & Co Oy – Advokatbyrå Kotiranta & Co Ab

Address: Aleksanterinkatu 19, 00100 Helsinki, Finland

Telephone: +358 20 7280 830
Fax: +358 20 7280 839

Email: info(at)

VAT: FI23177714

Founding Partner

Kai Kotiranta

Doctor of Laws, Attorney at Law

Telephone: +358 20 7280 831
Mobile: +358 40 178 7220

Senior Counsel

Katri Havu

Doctor of Laws, Licensed Litigation Counsel

Telephone: +358 20 7280 833
Mobile: +358 40 777 8916


Sini Tallgren


Telephone: +358 20 7280 832
Mobile: +358 40 777 9175

Email: firstname.lastname(at)




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Finnish Securities Markets Legislation changes (suomeksi).

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Summer Season 2016.

Summer Season 2016.

We have limited office and visiting hours from 27 June until 8 August 2016. During the period we are best reachable via email as well as via mobile phone. Please contact Dr. Kai Kotiranta directly by kai.kotiranta(at) and +358 40 178 7220 and Ms Sini...



Our office hours are limited during the holiday season (22 December 2015 - 7 January 2016) and we can be best reached via email or by phone: Dr. Kai Kotiranta, kai.kotiranta(at), +358 20 7280 831 Ms Sini Tallgren, sini.tallgren(at), +358 20...

KCO highly ranked by Best Lawyers.

Best Lawyers in Finland©, Seventh Edition has listed Dr. Kai Kotiranta of KCO as a top attorney in practice areas of Criminal Defense and Litigation.  Best Lawyers is the oldest peer-review publication in the legal profession. A listing in Best Lawyers is widely...

New Office.

New Office.

As of 1 September 2015, our new address will be Aleksanterinkatu 19, Helsinki, Finland. Our other contacts remain the same.