Seattle
Audrey advises a broad range of companies and investors on: buyout mergers and acquisitions, growth equity investments, reorganizations, joint ventures, and governance matters. Audrey’s practice focuses on advising clients in the energy, technology, and healthcare sectors. Audrey brings client-focused innovation and creativity to M&A transactions, developing tailored solutions to clients operating within the transforming energy and healthcare ecosystem and emerging climate tech industry.
London
Evan advises lenders, ECAs, institutional investors, renewable energy companies, investment firms and pension funds on financings, M&A, joint ventures and other strategic combinations. He brings considerable experience in wide range of renewable energy portfolio deals, as well as gas and power transmission and distribution projects and he has a market-leading offshore wind practice.
Chambers Global 2020 notes that clients say Evan is a “leading figure who has secured incredible and loyal clients because he does an excellent job.” He has also been named to The Lawyer’s Hot 100. and named to A Word About Wind's Top 100 Legal Power List.
London
Ravinder represents a wide range of clients in connection with large scale renewable (including onshore/offshore wind, solar and biomass) M&A, joint ventures, corporate restructurings and regulatory matters, as well as in respect of infrastructure and conventional energy assets. She is widely recognised as a leader in wind energy.
Ravinder is a member of Orrick’s Finance and Audit Committee, providing oversight of its financial reporting and audit process, its internal controls, and global compliance with laws and regulation.
London
Oliver works primarily on domestic and cross-border transactions in the renewable energy space, and also has experience advising on deals in the transport sector.
Paris
Geoffroy advises on public contracts, particularly in the context of concessions and PPPs. He has been involved in projects relating to the financing, construction and operation of the Stade Vélodrome in Marseille; the Sud Europe Atlantique high-speed line; the Athletes' Village for the Paris 2024 Olympic Games; the Grand Paris Express and the offshore extension of the Principality of Monaco. He has also worked on several French highway (A412, A69, RCEA, A88, A41, A150), port (Calais, Cannes) and airport projects (Nice, Lyon, Beauvais).
In the renewables field, he acts alongside the French government (Ministry of Energy Transition) in calls for tenders for the construction of offshore wind farms, including floating wind turbines, and advises operators in the realization of biomass and geothermal projects, as well as investors in the context of "M&A" operations concerning wind and solar assets and methanization. He also has experience in hydroelectricity matters. He advises both sponsors and lenders and works regularly with public entities and governments. He also advises on the drafting and negotiation of corporate PPAs, acting for both energy producers and buyers.
Geoffroy Berthon is recognized by clients as "talented, dynamic and brilliant lawyer. He is a hard worker. His calm manner and attentiveness reassure as a client" (Legal 500) and as a Leading Partner by Legal 500 (EMEA 2025) in public law and energy.
Geoffroy holds a doctorate in public law, was a lecturer in public contract law at Sciences Po, and frequently published in both English and French.
Washington, D.C.
Over the course of his career, Preston has tried more than 50 criminal cases to verdict, representing individual and corporate clients in complex federal white collar criminal cases, governmental and civil proceedings and congressional and internal investigations. He also has handled more than 10 appeals before the D.C. Court of Appeals, D.C. Circuit and Fourth Circuit.
His work is punctuated by numerous front-page cases, representing such high-profile clients as Monica Lewinsky, former CIA intelligence agent Aldrich H. Ames and former FBI Special Agent Robert Hanssen. He has represented business executives and companies in areas such as public corruption investigations, criminal antitrust matters, Foreign Corrupt Practices Act (FCPA) and export control violations, False Claims Act (FCA) cases and procurement fraud. Many of his cases have involved cross-border investigations, including extradition requests and multi-jurisdictional enforcement actions. He has also handled congressional investigations, as well as numerous matters involving national security issues, including the representation of several intelligence agency officials and serving most recently as an amicus appointed by the Foreign Intelligence Surveillance Court.
Since 2010, Preston has been ranked as a leading lawyer in White Collar Crime & Government Investigations by Chambers USA, which noted, “He is renowned throughout the legal community as someone with great trial skills and a great strategic sense." He has also been recognized for Corporate Investigations and White Collar Criminal Defense by Legal 500, which noted that he “has a formidable reputation for individual representations and is known for strategic thinking and willingness to try cases.” Benchmark Litigation 2019 named him as a top practitioner in White Collar and Securities Litigation.
Before joining Orrick, Preston was a partner at Buckley LLP and a member of the firm’s partner board. He joined Buckley from Poe & Burton PLLC, a boutique litigation firm he co-founded in 2011. Prior to that, he led the litigation practice of Orrick’s Washington, D.C. office. Following law school, he served as a law clerk to the Honorable Boyce F. Martin Jr. on the U.S. Court of Appeals for the Sixth Circuit and served as an Assistant U.S. Attorney in the Criminal Division of the U.S. Attorney's Office for the District of Columbia.
Washington, D.C.
Washington, D.C.
Devin's practice focuses on the representation of sponsors, borrowers and investors in debt and tax equity financings for energy and infrastructure projects.
Houston
Mason guides clients through their most significant energy transactions, from initial project development and M&A to debt and tax equity financings. This breadth of experience across the project lifecycle gives him valuable insight into what makes energy ventures successful, enabling him to help clients anticipate challenges and capture opportunities. Mason enjoys working closely with clients to manage risks and make projects successful.
Mason has a particular focus on real property matters, including negotiating site control documents, implementing shared facilities structures, and navigating title, survey and mineral issues. He is proud to work with a deep bench of talented attorneys at Orrick to efficiently handle large and complex transactions while maintaining keen attention to detail.
London
Anna’s experience spans M&A, project development and financing, joint ventures, market entry and expansion, and restructurings in Europe, Africa, Latin America, Asia Pacific and the Middle East. She offers clients a comprehensive understanding of the entire energy value chain – from upstream concessions and transportation arrangements to downstream commodity sales and trading. Anna is known for guiding clients through their most challenging and transformative matters, driving results in both mature and emerging markets.
Highly regarded in the market, Anna holds a Band 1 ranking from Chambers Global and Chambers UK in Oil & Gas. Clients praise her as “one of the standout energy lawyers both for M&A and oil and gas work,” noting her intelligent and commercial approach to negotiations and consistent, client-focused communication.
Prior to joining Orrick, Anna spent over 11 years practising in Asia and has worked in London, Singapore, Hong Kong and Beijing.
Santa Monica
José counsels high-growth companies on corporate governance, venture financings, and strategic transactions. He regularly advises on cross-border matters, with particular depth in Latin America, and works across industries including consumer internet, software, fintech, blockchain, edtech and healthtech.
In addition to representing companies, José advises leading venture capital firms and other investors on their investments in early and high-growth businesses. His work emphasizes clear, business-focused solutions to help clients move quickly and effectively.
Washington, D.C.
Washington, D.C.
Robbie has achieved significant victories in areas including patent law, statutory and regulatory interpretation, administrative law, and personal and appellate jurisdiction. He specializes in patent appeals before the Federal Circuit, where he has presented oral argument seven times. His winning arguments include a complete, precedent-setting victory for a leading tech company in an appeal and cross-appeal of a PTAB decision, where he secured affirmance of the PTAB's decision to strike down some patent claims and reversal of the PTAB's decision to uphold the remainder.
Robbie has represented clients across a wide variety of industries, including semiconductors and electronics, software, pharmaceuticals, agriculture, and sporting goods. His work has also involved a number of U.S. agencies, including the Patent and Trademark Office, the International Trade Commission, the Food and Drug Administration, the Federal Energy Regulatory Commission, the Department of Agriculture, the Department of Labor, and the Department of Veterans Affairs.
Before joining Orrick, Robbie was a lawyer at Wilmer Cutler Pickering Hale and Dorr LLP, where he was a member of its Appellate and Supreme Court Litigation, Intellectual Property Litigation, and Government and Regulatory Litigation groups. Before that, Robbie was a law clerk for the Honorable Richard G. Taranto of the Federal Circuit.
New York
David is recognized as a trusted advisor who delivers valued execution and results.