People

William Berry Senior Counsel

San Francisco

William also has substantial experience with the employee benefit aspects of sales and acquisitions of businesses (including bankruptcy transactions), the restructuring of defined benefit pension plans, the defense of ERISA class action litigation, and public pension plan matters.

His clients include a wide range of large and medium-sized corporations, as well as individual and public clients. He also provides tax and retirement planning advice to many of Orrick's corporate clients.

William has been a frequent lecturer on employee benefits and related individual tax and fiduciary topics for the American Law Institute-American Bar Association; California Continuing Education of the Bar; the International Foundation of Employee Benefit Plans; the Practicing Law Institute; the Western Pension & Benefits Conference; various Bay Area Estate Planning Councils; and other organizations.

William became a senior counsel in 2013 after having been an Orrick partner since 1999.  Before joining Orrick, William was a partner at the law firm of Pillsbury Winthrop LLP in San Francisco.

Geoffroy Berthon Partner

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 recognised by clients as "a high quality lawyer whose analyses are very precise and rigorous and whose pragmatic approach is highly regarded" (Legal 500) and as a Leading Individual by Legal 500 (EMEA 2023) 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.

Josh Beser Partner

New York

Josh is a member of Orrick’s Technology Companies Group, representing high-growth technology companies and their investors in a range of corporate matters, including corporate and securities law, corporate formations, venture and growth capital financings, mergers and acquisitions, public offerings, and secondary offerings. Josh brings a unique perspective to working with founders and company leadership at venture-backed companies as they scale, often serving as the company’s primary outside counsel from early-stage financing through exit. He is especially skilled serving as outside general counsel to companies as they reach growth inflection points, often ranging from Series Seed to Series C and beyond, where business and legal issues tend to multiply and the experience of outside counsel with deep operating experience is particularly valuable. He is an integral part of the firm’s presence in New York and its commitment to tech & venture ecosystem in the region.

Josh’s clients include Misfits Market, Skims, Studs, Away, Crossbeam and Topline Pro. In addition, Josh regularly works with early-stage investors and venture studios such as TMV and 25madison.

Josh is a leader in the startup ecosystem in New York, as a founding member of TechGC in New York City, a mentor to growth-stage general counsels in collaboration with First Round Capital’s Fast Track program and since 2012, as a mentor to early-stage founders through ERA.

Before joining Orrick, Josh was a partner in the New York office of Wilson Sonsini Goodrich & Rosati. Prior to WSGR, Josh served as general counsel at Away, a direct-to-consumer travel brand twice named as one of Fast Company’s “Most Innovative Companies” and as one of Time’s “50 Most Genius Companies,” among other honors. At Away, Josh was a member of the executive team, served as corporate secretary, and built and led teams in a wide range of operational functions, including information security, real estate, and global trade. Josh built and implemented Away’s legal strategy and infrastructure at scale and led Away’s legal team through substantial revenue and headcount growth, international sales, operations and retail expansion, Series C and Series D financings, growth-stage debt financing, liquidity transactions, global intellectual property development and brand protection programs, public company readiness, and executive transitions.

Ari Bessendorf Partner

Singapore

Ari’s practice cuts across sectors, including conventional power, renewable energy (solar, wind, geothermal, hydroelectric), infrastructure, oil & gas and mining throughout the United States and Asia. His combination of project development and finance experience allows him to advise clients on bankability considerations for development matters.

Clients commend him for being “meticulous on the finer details”, and “a firm but calming and amiable presence at the negotiating table.” They add that “he gained our trust” and has “a cost-effective approach and a drive to successfully close deals.”

Chiara Bettinzoli Associate

Milan

Chiara assists the team in advising companies and individuals in investigations in relation to white-collar crimes (such as anti-money laundering, financial crimes, corporate crimes, bankruptcy crimes, tax crimes, environmental crimes, occupational health and safety crimes).

Chiara participates in carrying out internal investigations aimed at strengthening the internal control systems of leading national and international companies.

Chiara also collaborates on an ongoing basis in advising major companies and corporate groups in managing potential compliance risks, in particular in relation to the Organisational, Management and Control Models adopted pursuant to Legislative Decree no. 231/2001.

Chiara has been appointed as member of Supervisory Body (Organismi di Vigilanza) of Italian companies.
Since November 2024, Chiara is a PhD student at Università Cattolica del Sacro Cuore of Milan (PhD in business, labour, institutions and criminal justice).

Since 2023, Chiara has been teaching assistant in Business and Corporate Criminal Law at Università Cattolica del Sacro Cuore of Milan.

Chiara graduated with honours from Università Cattolica del Sacro Cuore of Milan following a study period spent at the University of California - Berkeley.

Chiara is fluent in English, French and Spanish

Upnit K. Bhatti Senior Associate

Washington, D.C.

Upnit has served as litigation, trial, and appellate counsel for pharmaceutical, chemical, technology, cosmetics, and manufacturing companies. As a member of trial teams, she works on complex commercial matters to develop creative legal strategies for trial and subsequent appeals. As embedded counsel, Upnit takes the lead in drafting dispositive motions and pre- and post-trial filings and ensures that appellate issues are preserved. She has presented oral argument in state and federal courts and has co-authored countless briefs before state and federal trial and appellate courts, including the Supreme Court of the United States. In addition, Upnit maintains an active pro bono practice.

Prior to joining Orrick, Upnit focused on products liability and complex litigation work at Arnold & Porter LLP and a mid-size firm in Upstate New York. This included representing a consumer products company in the defense of thousands of personal injury cases in state and federal courts. She was the primary drafter of several motions and appellate briefs. She was also deeply involved in the firms’ pro bono practices and first chaired a trial dealing with First and Eighth Amendment claims.

Outside of the firm, Upnit serves on the Board of Directors of the DC Women’s Bar Association and serves as its Advocacy Committee Co-Chair. She is also a member of the Board of Directors of her law school’s Alumni Association.

Upnit previously clerked for the Honorable Theodore A. McKee of the Third Circuit Court of Appeals and interned for the Honorable Thérèse Wiley Dancks of the Northern District of New York. In law school, Upnit served as the Managing Editor of the Syracuse Law Review, and was an arguing member of the American Bar Association’s National Appellate Team. She received the Moot Court Honor Society’s Executive Director Award and the Syracuse Law Review Distinguished Leadership Award.

Mariam Bicknell Managing Associate

Orange County

Mariam has experience defending employers in the retail, financial, real estate, and healthcare industries in a broad range of employment issues, including discrimination, harassment, retaliation, wrongful termination, as well as wage-and-hour class and representative actions. She also advises employers regarding compliance with employment laws, including leave of absence issues, requests for accommodations, employee terminations, and employee handbook and personnel policies.

Mariam earned her Juris Doctor degree from the UC Irvine School of Law. While in law school, Mariam was the Editor-in-Chief for the UC Irvine Journal of International, Transnational, and Comparative Law and led the publication of the Journal’s inaugural volumes. She also served as a judicial extern to The Honorable James J. Di Cesare at the Orange County Superior Court.