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WWL Ranking: Global Elite Thought Leader
WWL Ranking: Thought Leader
WWL Ranking: Thought Leader

Global Leader

M&A 2021

Professional Biography

WWL Ranking: Global Elite Thought Leader

WWL says

Hans-Jakob Diem has “absolutely great experience” in high-value M&A deals, and is “extremely reactive and proactive” according to sources.

Biography

Hans-Jakob Diem is a corporate partner at Lenz & Staehelin. He heads the firm's corporate and M&A practice group and is the co-head of the capital markets practice group in Zurich. He has extensive experience in representing clients in a variety of corporate transactions, concentrating on mergers and acquisitions, capital market transactions, bank financings and corporate governance matters.

Hans-Jakob Diem is regarded as a leading corporate practitioner in Switzerland and is regularly involved in high-profile transactions in the Swiss market, both domestic and cross-border. He also serves as principal outside counsel for a number of clients on stock exchange and securities trading law and corporate governance matters. He is admitted as an expert to the SIX Swiss Exchange for listing purposes.

Besides his corporate practice, Hans-Jakob Diem lectures corporate and M&A law at the universities of Basel and Zurich and is a regular speaker at conferences, an author of various legal textbooks and a regular contributor in law journals.

Hans-Jakob Diem completed a law degree at University of Basel (1992) and obtained an LLM from London School of Economics and Political Science (1998). Admitted to the Basel Bar (1995), he joined Lenz & Staehelin in 1998 and has been a partner since 2007. He speaks German, English and French.

Hans-Jakob Diem is a member of the following professional associations: the Zurich Bar Association (ZAV), the Swiss Bar Association (SAV), the International Bar Association (IBA), the Swiss Private Equity and Corporate Finance Association (SECA), the Swiss-American Chamber of Commerce, the Swiss-Chinese Chamber of Commerce (SCCC), the Swiss Institute of Directors and the Swiss LSE Alumni Association.

Lenz & Staehelin is one of the largest Swiss law firms with over 200 lawyers and with offices in Geneva, Zurich and Lausanne. Lenz & Staehelin's scope of activities covers all areas of business law for Swiss and international clients.

National Leader

Switzerland - Banking 2021

Professional Biography

WWL Ranking: Recommended

WWL says

Hans-Jakob Diem draws praise for his “great experience and proactive and straight to the point approach”.

Biography

Hans-Jakob Diem is a corporate partner at Lenz & Staehelin. He heads the firm's corporate and M&A practice group and is the co-head of the capital markets practice group in Zurich. He has extensive experience in representing clients in a variety of corporate transactions, concentrating on mergers and acquisitions, capital market transactions, bank financings and corporate governance matters.

Hans-Jakob Diem is regarded as a leading corporate practitioner in Switzerland and is regularly involved in high-profile transactions in the Swiss market, both domestic and cross-border. He also serves as principal outside counsel for a number of clients on stock exchange and securities trading law and corporate governance matters. He is admitted as an expert to the SIX Swiss Exchange for listing purposes.

Besides his corporate practice, Hans-Jakob Diem lectures corporate and M&A law at the universities of Basel and Zurich and is a regular speaker at conferences, an author of various legal textbooks and a regular contributor in law journals.

Hans-Jakob Diem completed a law degree at University of Basel (1992) and obtained an LLM from London School of Economics and Political Science (1998). Admitted to the Basel Bar (1995), he joined Lenz & Staehelin in 1998 and has been a partner since 2007. He speaks German, English and French.

Hans-Jakob Diem is a member of the following professional associations: the Zurich Bar Association (ZAV), the Swiss Bar Association (SAV), the International Bar Association (IBA), the Swiss Private Equity and Corporate Finance Association (SECA), the Swiss-American Chamber of Commerce, the Swiss-Chinese Chamber of Commerce (SCCC), the Swiss Institute of Directors and the Swiss LSE Alumni Association.

Lenz & Staehelin is one of the largest Swiss law firms with over 200 lawyers and with offices in Geneva, Zurich and Lausanne. Lenz & Staehelin's scope of activities covers all areas of business law for Swiss and international clients.

WWL Ranking: Recommended

WWL says

Hans-Jakob Diem is commended for his “highly qualified legal work coupled with a customer-oriented and highly committed approach”.

Biography

Hans-Jakob Diem is a corporate partner at Lenz & Staehelin. He heads the firm's corporate and M&A practice group and is the co-head of the capital markets practice group in Zurich. He has extensive experience in representing clients in a variety of corporate transactions, concentrating on mergers and acquisitions, capital market transactions, bank financings and corporate governance matters.

Hans-Jakob Diem is regarded as a leading corporate practitioner in Switzerland and is regularly involved in high-profile transactions in the Swiss market, both domestic and cross-border. He also serves as principal outside counsel for a number of clients on stock exchange and securities trading law and corporate governance matters. He is admitted as an expert to the SIX Swiss Exchange for listing purposes.

Besides his corporate practice, Hans-Jakob Diem lectures corporate and M&A law at the universities of Basel and Zurich and is a regular speaker at conferences, an author of various legal textbooks and a regular contributor in law journals.

Hans-Jakob Diem completed a law degree at University of Basel (1992) and obtained an LLM from London School of Economics and Political Science (1998). Admitted to the Basel Bar (1995), he joined Lenz & Staehelin in 1998 and has been a partner since 2007. He speaks German, English and French.

Hans-Jakob Diem is a member of the following professional associations: the Zurich Bar Association (ZAV), the Swiss Bar Association (SAV), the International Bar Association (IBA), the Swiss Private Equity and Corporate Finance Association (SECA), the Swiss-American Chamber of Commerce, the Swiss-Chinese Chamber of Commerce (SCCC), the Swiss Institute of Directors and the Swiss LSE Alumni Association.

Lenz & Staehelin is one of the largest Swiss law firms with over 200 lawyers and with offices in Geneva, Zurich and Lausanne. Lenz & Staehelin's scope of activities covers all areas of business law for Swiss and international clients.

Switzerland - M&A 2021

Professional Biography

WWL Ranking: Recommended

WWL says

Hans-Jakob Diem is well known among Swiss practitioners for his “highly qualified legal work” and “customer-oriented” approach to mergers. 

Biography

Hans-Jakob Diem is a corporate partner at Lenz & Staehelin. He heads the firm's corporate and M&A practice group and is the co-head of the capital markets practice group in Zurich. He has extensive experience in representing clients in a variety of corporate transactions, concentrating on mergers and acquisitions, capital market transactions, bank financings and corporate governance matters.

Hans-Jakob Diem is regarded as a leading corporate practitioner in Switzerland and is regularly involved in high-profile transactions in the Swiss market, both domestic and cross-border. He also serves as principal outside counsel for a number of clients on stock exchange and securities trading law and corporate governance matters. He is admitted as an expert to the SIX Swiss Exchange for listing purposes.

Besides his corporate practice, Hans-Jakob Diem lectures corporate and M&A law at the universities of Basel and Zurich and is a regular speaker at conferences, an author of various legal textbooks and a regular contributor in law journals.

Hans-Jakob Diem completed a law degree at University of Basel (1992) and obtained an LLM from London School of Economics and Political Science (1998). Admitted to the Basel Bar (1995), he joined Lenz & Staehelin in 1998 and has been a partner since 2007. He speaks German, English and French.

Hans-Jakob Diem is a member of the following professional associations: the Zurich Bar Association (ZAV), the Swiss Bar Association (SAV), the International Bar Association (IBA), the Swiss Private Equity and Corporate Finance Association (SECA), the Swiss-American Chamber of Commerce, the Swiss-Chinese Chamber of Commerce (SCCC), the Swiss Institute of Directors and the Swiss LSE Alumni Association.

Lenz & Staehelin is one of the largest Swiss law firms with over 200 lawyers and with offices in Geneva, Zurich and Lausanne. Lenz & Staehelin's scope of activities covers all areas of business law for Swiss and international clients.

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