Poland

Based in Warsaw, CDZ - Chajec Don-Siemion & Zyto is a Polish law firm that offers a broad range of services, including corporate and M&A, capital markets, restructuring and insolvency and project finance. It is part of the international network Interlaw which has presence in EMEA, the Americas and Asia. The firm focuses on domestic and international M&A projects. 

BM Lawyers, formerly Małecki Legal is a boutique transactional law firm based in Warsaw, founded by Leszek Małecki in 2020. The firm specialises in transactional and corporate matters for both domestic and international clients. It is particularly noted for its work in the digital economy, healthcare and medical sectors.

Testimonials 

“What makes Małecki Legal stand out is their practical, business-focused way of working. They keep deals smooth and efficient without overcomplicating matters.” – M&A

“Their advice is always clear, useful, and focused on what truly matters to the client’s business.” – M&A

“A key benefit is that senior partner Leszek Małecki remains engaged at every stage, ensuring faster progress and clearer communication.” – M&A

“They are quick to respond and flexible, even when deadlines are tight or circumstances change suddenly.” – M&A

“From planning and documentation to signing, closing, and post-deal support, they provide steady and reliable guidance.” – M&A

“They work seamlessly with other advisors, like tax or financial experts, which keeps things moving and avoids delays.” – M&A

“Małecki Legal combines knowledge with business reality. For us, they are the go-to transactional law firm when seeking reliable, expert advice in specialized sectors.” – M&A

“They understand complex transactions very well—coordinating efficiently, communicating clearly, and paying attention to every detail to ensure smooth execution.” – Project finance

“Their team is highly responsive, reliable, and pragmatic, offering practical solutions tailored to our business needs.” – M&A

“We value their professionalism, calm approach, and expertise in transactional matters, as well as their ability to assess risks from multiple perspectives—legal, tax, and regulatory.” – M&A

“I have worked with Leszek Małecki and his team on numerous projects over many years. His strong industry knowledge and business understanding have ensured smooth negotiations and successful outcomes.” – Leszek Małecki, Founder

“Leszek Małecki is a strong transactional lawyer with excellent negotiation skills. He combines legal, tax, and regulatory insight with a practical, business-focused approach.” – Leszek Małecki, Founder

“Leszek leads negotiations effectively, anticipates risks early, and ensures all tasks are completed on time to keep transactions on track.” – Leszek Małecki, Founder

“Leszek is highly skilled not only in M&A but also in private equity and venture capital. He is well-organized and able to manage multiple transactions simultaneously.” – Leszek Małecki, Founder

“Leszek quickly identifies critical issues, deals with them efficiently, and communicates complex matters in a clear and understandable way.” - Leszek Małecki, Founder

“Over many years of working together, Leszek has shown not only outstanding transactional skills but also a unique ability to collaborate professionally and respectfully with both clients and advisors.” - Leszek Małecki, Founder

“He deeply understands the business principles and strategic goals behind M&A transactions, recognizing priorities and finding the best solutions.” - Leszek Małecki, Founder

“Leszek leads a strong and capable team that delivers consistent, high-quality advice and manages complex matters effectively from start to finish.” - Leszek Małecki, Founder

Key clients

In-Pulse (Stagwell Group), Grupa Medicus, Shift4Good, Home Doctor, Kulczyk Investments

Małecki Legal is a boutique transactional law firm based in Warsaw, founded by Leszek Małecki in 2020. The firm specialises in transactional and corporate matters for both domestic and international clients. It is particularly noted for its work in the digital economy, healthcare and medical sectors.

Key clients

In-Pulse (Stagwell Group), Grupa Medicus, Shift4Good, Home Doctor, Kulczyk Investments

Testimonials

2025

• “What makes Małecki Legal stand out is their practical, business-focused way of working. They keep deals smooth and efficient without overcomplicating matters.” – M&A
• “Their advice is always clear, useful, and focused on what truly matters to the client’s business.” – M&A
• “A key benefit is that senior partner Leszek Małecki remains engaged at every stage, ensuring faster progress and clearer communication.” – M&A
• “They are quick to respond and flexible, even when deadlines are tight or circumstances change suddenly.” – M&A
• “From planning and documentation to signing, closing, and post-deal support, they provide steady and reliable guidance.” – M&A
• “They work seamlessly with other advisors, like tax or financial experts, which keeps things moving and avoids delays.” – M&A
• “Małecki Legal combines knowledge with business reality. For us, they are the go-to transactional law firm when seeking reliable, expert advice in specialized sectors.” – M&A
• “They understand complex transactions very well—coordinating efficiently, communicating clearly, and paying attention to every detail to ensure smooth execution.” – Project finance
• “Their team is highly responsive, reliable, and pragmatic, offering practical solutions tailored to our business needs.” – M&A
• “We value their professionalism, calm approach, and expertise in transactional matters, as well as their ability to assess risks from multiple perspectives—legal, tax, and regulatory.” – M&A
• “I have worked with Leszek Małecki and his team on numerous projects over many years. His strong industry knowledge and business understanding have ensured smooth negotiations and successful outcomes.” – Leszek Małecki, Founder
• “Leszek Małecki is a strong transactional lawyer with excellent negotiation skills. He combines legal, tax, and regulatory insight with a practical, business-focused approach.” – Leszek Małecki, Founder
• “Leszek leads negotiations effectively, anticipates risks early, and ensures all tasks are completed on time to keep transactions on track.” – Leszek Małecki, Founder
• “Leszek is highly skilled not only in M&A but also in private equity and venture capital. He is well-organized and able to manage multiple transactions simultaneously.” – Leszek Małecki, Founder
• “Leszek quickly identifies critical issues, deals with them efficiently, and communicates complex matters in a clear and understandable way.” - Leszek Małecki, Founder
• “Over many years of working together, Leszek has shown not only outstanding transactional skills but also a unique ability to collaborate professionally and respectfully with both clients and advisors.” - Leszek Małecki, Founder
• “He deeply understands the business principles and strategic goals behind M&A transactions, recognizing priorities and finding the best solutions.” - Leszek Małecki, Founder
• “Leszek leads a strong and capable team that delivers consistent, high-quality advice and manages complex matters effectively from start to finish.” - Leszek Małecki, Founder

Norton Rose Fulbright Piotr Strawa and Partners is the Polish presence of international law firm Norton Rose. The firm is led by Grzegorz Dyczkowski and is based in Warsaw.

Norton Rose Fulbright is an international business law firm with more than 3700 lawyers and other legal staff working across Europe, the United States, Canada, Latin America, Asia Pacific, Africa and the Middle East.

Focusses / specialisms

The firm has a strong practice in banking and project finance where the firm has achieved top tier status in Poland.

Key clients

In banking key clients of the firm include BNP Paribas Bank Polska, Bank Gospodarstwa Krajowego, Bank Polska Kasa Opieki, Bank of China – Polish branch, Commerzbank Group (local entity: mBank), HSBC Group, Industrial and Commercial Bank of China – Polish Branch, ING Group (local entity: ING Bank Śląski), LOT Polish Airlines and PKO Bank Polski.

In debt capital markets key clients of the firm include HSBC Bank, Deutsche Bank, Credit Agricole Corporate and Investment Bank, Polskie Linie Lotnicze, JP Morgan Securities, Bank of America Merrill Lynch, TAURON Polska Energia, Goldman Sachs, Greenyard and Oriflame Poland.

In M&A key clients of the firm include Amicus Therapeutics, Bank Gospodarstwa Krajowego, Bayer, Benefit Systems, Bioplan Europe, Bioventus, Cathay Pacific Airways, CEE Equity Partners, Dot2Dot and Domestic & General Group.

In project development key clients of the firm include Aquila Capital Management, Allianz Capital Partners, Enel Green Power, TFI Energia, R.Power, PGE Polska Grupa Energetyczna and PGE Energia Odnawialna.

In project finance key clients of the firm include BlackRock, Allianz Capital Partners, Aquila Capital Management, PGE Polska Grupa Energetyczna, PGE Energia Odnawialna, Tauron Polska Energia, Bank Polska Kasa Opieki, mBank, Santander Bank Polska and DNB Bank Polska.

Client Feedback: 31^st edition (2020/2021)

Bank lending: Lender side

"Professional - responsive - dedicated."

"Competent, experienced lawyers, they also take care of the transaction and analyse all potential risks for the bank."

Banking and finance

"The team is knowledgeable, always proactive, technically very sound, thinks ahead to resolve issues and top of the market in their jurisdiction."

Investment funds

"Quick, reactive, pragmatic, available and precise"

M&A

"Well connected, good renewable energy knowledge and context."

Project development: Energy

"Availability. Knowledge of regulatory framework. M&A."

GSW Legal is a Polish law firm established in 2011. The firm is led by managing partners Tomasz Grabarek and Rafał  Szalc and has office in Warsaw.

Focusses / specialisms

The firm is active in M&A.

Key clients

Key clients of the firm include iPOS, Orbitvu, BSD Growth Fund, Capital Partners, Up Energy, Exinet Trading, MTTC Poland, Bewood, Automet Group and Globe Travel Services Poland.