Heidi Yildiz

Senior Attorney

Heidi Yildiz

Senior Attorney

Phone+358 9 681 700
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An excellent legal writer.

Chambers Europe 2018, Dispute Resolution

“An experienced and committed lawyer” who is well known for her impressive expertise acting as both arbitrator and counsel in international disputes.

Who’s Who Legal, WWL: Arbitration 2019, Future Leaders - Non-partners

The “exceptional” Heidi Yildiz comes highly recommended thanks to her “extensive international experience and superb presentation skills”.

Who's Who Legal 2018, Arbitration

I definitely recommend her in any arbitration.

Who’s Who Legal, WWL: Arbitration 2020

An ‘Associate to Watch’ in Dispute Resolution in Finland by Chambers and Partners Europe, most recently in 2019.

Chambers Europe, Dispute Resolution

Heidi Yildiz has been ranked as Future Leader in the Arbitration Future Leaders – Non-Partners category of WWL Arbitration, most recently in 2021.

Who’s Who Legal, WWL: Arbitration 2018-2021, Future Leaders

A very good problem solver who interprets documents very well.

Chambers Europe 2018, Dispute Resolution

Heidi Yildiz is “an analytic and strategic thinker”, renowned for her “in-depth knowledge of both civil and common law principles”.

Who’s Who Legal, WWL: Arbitration 2020

Heidi Yildiz is noted for her activity on matters related to corporate litigation, including intellectual property and maritime litigation proceedings.

Chambers Europe 2019, Dispute Resolution
Dittmar & Indrenius > People > Heidi Yildiz

Focus on international arbitration and commercial litigation.

Heidi Yildiz is known for her extensive experience on complex and high-value international arbitration disputes, both of a private and public law nature.

She is dual qualified and admitted to practise both as a solicitor in England and Wales and as an attorney in Finland. Heidi’s practice benefits from her profound and in-depth knowledge of both civil and common law principles, gained whilst practising international arbitration for several years in both London and Helsinki. She has also gained vast commercial litigation experience both from English and Finnish courts.

Heidi acts both as counsel and arbitrator in commercial arbitration proceedings. As a counsel, Heidi has represented a broad range of clients across a range of different industry sectors in institutional arbitrations conducted under the ICC, LCIA, DIS, FAI, UNCITRAL and PCA Rules as well as ad hoc arbitrations, governed by a variety of substantive and procedural laws. Most recently, she co-led the D&I team that successfully represented Fonecta in arbitration proceedings concerning Fonecta’s right to redirect traffic from a web address owned by Eniro to fonecta.fi.

Heidi’s public international law experience includes working as part of the WilmerHale team that successfully represented SPLM/A in the ground-breaking Abyei boundary delimitation proceedings against the Government of Sudan conducted under the auspices of the Permanent Court of Arbitration in The Hague.

Heidi trained as a solicitor in the London office of WilmerHale, where upon qualification she practised international arbitration until she joined Dittmar & Indrenius in 2011. She has previously also worked in the International Arbitration Department at Herbert Smith Freehills LLP in London.


City, University of London (LL.B. (Hons), 2003)

BPP Law School, London (Post Graduate Diploma in Legal Practice (LPC), 2004)

Admitted: Solicitor of the Senior Courts of England and Wales

Admitted: Finnish Bar Association


English, Finnish, Turkish, German and Swedish


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