About our firm

Bournonville Grigorieff is an independent law firm based in Brussels, driven by experienced and qualified practitioners who are leaders in their fields, with a sector oriented approach. The members of the firm are recognized for their expertise in the aviation, transport, logistics, insurance and commercial sectors. The firm offers a broad range of services in the markets in which it is active: commercial transactions, regulatory, coverage and litigation (including arbitration and mediation).

All members of the firm are qualified to appear and plead before all Belgian and European courts. The practice is led by Dimitri de Bournonville and Cyril-Igor Grigorieff, who are recognized practitioners and leaders in the sectors and areas where the firm is active, seconded by a team of associates selected based on their legal skills, hands-on approach and sector knowledge.

The objectives of the firm are to stand out as a centre of excellence, and maintain the leadership, top rankings and visibility of the team for the services it is delivering, while remaining approachable and applying competitive rates to assist all stakeholders in the sectors it serves.

Solid. Expert. Independent. Reputable. Approachable. Competitive.

This is what Bournonville Grigorieff is about.

Our team

Network

Bournonville Grigorieff is an associate member of the Kennedys LLP’s network of international offices (https://kennedyslaw.com/en/), through which the clients of the firm have access to more than 70 prime offices located around the globe, including North and Latin America, the United Kingdom and Asia Pacific. For local matters beyond its core expertise, Bournonville Grigorieff also regularly cooperates with the Belgian firm of CEW Avocats (https://www.cew-law.be/en/), thereby offering to its clients a full and integrated service in all sectors.

 

Recent awards & recognitions

  • Official title of accredited Transport Law Specialist awarded to Dimitri de Bournonville and Cyril-Igor Grigorieff by the Brussels and Belgian bar authorities
  • Recommended in the fields of Aviation Finance, Regulatory and Contentious in the Lexology Transport Report 2025
  • Legal 500 Hall of Fame for Aviation in Belgium in 2023 and 2024
  • Best PhD Award 2024 granted by the Académie de l’Air et de l’Espace to Cyril-Igor Grigorieff’s thesis on the Montreal Convention
  • Leading individual in the Aviation and Transport sectors in the Legal 500 guide
  • Systematically listed as a Top tier (band 1) legal practice for Aviation in Belgium in all editions of the Legal 500 since 2016
  • Dimitri de Bournonville heads the team with a no-nonsense approach tailored to clients’ needs always going the extra mile” (Legal 500 EMEA 2024)
  • An ‘outstanding aviation practice’”.  “A market-leading outfit in this space with a practice that covers the full gamut of aviation matters, including finance and leasing as well as disputes and damage claims. The firm counts a host of high-profile domestic and international companies in addition to government institutions amongst its client roster and acts for airlines, cargo companies, lessors, and insurers alike” (Legal 500 EMEA 2024)
  • Dimitri de Bournonville remains a key figure in the market. He combines strong expertise in litigation, regulatory and commercial matters in the transport sector” (Legal 500 EMEA 2023)
  • To the point, sharp and visionary. Great team” (Legal 500 EMEA 2023)
  • The practice is led by ‘uncontested expert‘ Dimitri de Bournonville, a vastly experienced figure within the space with expertise in transactions, leasing, and regulatory issues” (Legal 500 EMEA 2022)
  • Dimitri de Bournonville remains the key man behind the success of the office. His experience is a real advantage when it comes to advising and assisting the firm’s clients in the transportation and logistics sector“. “Praised by clients for his wide-ranging transport sector capabilities, including corporate transactions and arbitration proceedings” (Legal 500 EMEA 2022)
  • Dimitri De Bournonville is ‘a great practitioner’, ‘intellectually brilliant’ and ‘stands out as one of the star practitioners in the aviation market in Belgium and the Benelux region.” “True specialist and leader in his field, with over 25 years of professional experience. He remains very approachable and someone with whom we as clients sincerely enjoy interacting with, to explore ideas out of the box and under all angles, yet in a pragmatic way” (Legal 500 EMEA 2021)
  • Knowledgeable, responsive and reliable business partners for transportation matters” (Legal 500 EMEA 2020)
  • Dimitri de Bournonville is a first-class lawyer. He leads a team of very experienced and dynamic lawyers”. “Head of the practice Dimitri de Bournonville has an excellent and long standing reputation that he lives up to in the matters he deals with”. “Dimitri de Bournonville is brilliant and remains an uncontested leader in the field of aviation law in the Belgium and Benelux region.” (Legal 500 EMEA 2020)
  • Winner of the Client Choice Award for Aviation (Belgium) 2020
  • Winner of the Highest Potential Law Firm award at the Belgian Legal Awards 2011

Need our expertise ?

If you have any questions about our services or would like to discuss how we can assist with your legal needs, we invite you to contact us directly. Our team is ready to provide personalized guidance and support tailored to your specific situation. We look forward to hearing from you and will get back to you promptly.