San Francisco
Richard also has represented clients in a wide range of SEC-registered, underwritten and privately placed stock and debt offerings, and he has assisted companies in connection with issuer tender offers (both equity and debt), recapitalizations, restructurings, share repurchase programs, and rights offerings. He regularly represents clients in the preparation and filing of periodic SEC reports, proxy statements and Williams Act reports. He also advises clients on compliance with the Sarbanes-Oxley Act of 2002, Dodd-Frank Act of 2010 and JOBS Act; reporting under and compliance with Section 16 of the Securities Exchange Act of 1934; disclosure and reporting issues; sales of restricted securities and sales of securities by insiders; universal proxy cards; and NYSE/NASDAQ rule compliance and inquiries.
Austin
Zac advises clients on:
As co-lead of the firm’s Energy Tech Team, Zac focuses on supporting companies and investors developing technologies like hyperscale data centers, alternative fuels, carbon capture, eVTOL aircraft, agtech and digital infrastructure. Zac is a key member of Orrick's energy transition practice, which was recognized as Band 1 in Energy Transition by Chambers USA (2023).
Zac is passionate about legal tech and implementing AI tools to enhance legal services. He helps lead the firm’s MAPE 2.0 project team, a platform that transforms M&A execution, which won the Financial Times' Reinventing the Legal Practice category.
Londres
Rachel is known for her work with early-stage and high-growth technology companies, partnering closely with founders to support their financing needs. Rachel helps businesses scale by connecting them with specialist expertise within the firm, including intellectual property and employment law.
Rachel also represents corporate acquirers in acquisitions and joint ventures, and advises growth companies on bolt-on acquisitions and exit strategies. Her experience includes working with both trade acquirers and private equity houses.
Rachel’s clients include notable companies such as Butternut Box and Inforcer, whom she advises on financing and general corporate matters.
New York
Anupam provides strategic support during the entire cybersecurity incident lifecycle, including leading tabletop exercises and assessments, advising on state breach notification laws, preparing notifications, and managing investigations and enforcement actions. He has worked on data breach investigations for companies in various sectors, helping them respond efficiently to sophisticated cyberattacks and advising them on regulatory investigations.
Anupam also has experience defending clients in class action litigation for alleged consumer privacy violations under the California Invasion of Privacy Act (CIPA), the California Constitution and the Washington Consumer Protection Act.
Washington, D.C.
Washington, D.C.
Before joining Orrick, Sam was an associate at another international law firm in their Data Privacy and Security, Commercial Disputes, and Appellate practice groups.
Prior to attending law school, Sam spent eight years at the National Institutes of Health (NIH), primarily as a bioethicist in the Division of AIDS. Sam advised on research ethics challenges in the design and conduct of international infectious disease clinical trials and genetics studies.
San Francisco
San Francisco
Karen focuses on litigation that crosses the boundaries between traditional legal practices, and therefore requires inventive and strategic approaches. These solutions, tucked in the creases between law and industry, are why leading technology and Fortune 500 companies hire Karen to resolve their most complex litigation matters.
Over the past 36 years, Karen has first-chaired state and federal trials, and arbitrated more than a dozen disputes. She has managed intellectual property and commercial disputes for companies such as Oracle, NVIDIA, Netflix and VMWare.
In addition to her legal background, Karen’s relationship management skills give her clients a significant advantage. She knows how to pull together and lead the best team, from multiple disciplines within Orrick, and often involving multiple law firms. Able to unite what were, and will be, competing firms into a single powerful unit takes a special type of leadership, one which Karen has demonstrated time and again.
Paris
Marc conseille des fonds d’investissements, des groupes industriels, des sociétés cotées et des start-ups français et internationaux sur tous les aspects du droit des affaires, intervenant notamment dans le cadre d’acquisitions, de cessions, de fusions, de réorganisations et de partenariats stratégiques.
Il est particulièrement actif dans les secteurs des infrastructures, des énergies renouvelables et des nouvelles technologies, en France comme à l’international.
En 2025, le guide international Legal 500 EMEA le nomme dans la catégorie Key Lawyer en Private equity: LBO et commente « livrables de haute qualité ; communication claire et didactique ; propositions fortes ; proactivité » et « sérieux tout en étant détendu dans les interactions, appréciable dans la phase d'exécution sous pression. »
New York
As a partner in Orrick’s top 5 ranked Technology Companies Group, Josh Beser is the first call for high-growth company and venture investor clients. Focused on guiding startups from seed stage through late-stage financings and strategic exits, he brings the perspective of a former general counsel who has scaled e-commerce businesses from the inside. This includes helping Away, for whom he continues to serve as primary outside corporate counsel, raise over $200 million and achieve a $1.4 billion valuation.
Josh is particularly passionate about building high-growth companies in regulated environments, helping his clients synthesize a wide range of potential legal and regulatory issues to drive growth, product innovation, fundraising, expansion, and M&A, while navigating founder transitions and board dynamics.
In doing so, he draws on his Orrick colleagues' deep regulatory expertise across AI, digital health/healthtech, fintech, consumer and retail innovation, energy and infrastructure, gaming, space, life sciences and other verticals.
Josh works closely with founders, executives and boards in:
Josh also regularly advises leading VCs and strategic investors active in these markets.
“Working with Josh is different because it really feels like he has my back. I know I’m getting great, practical advice from someone who’s been there.”
— General Counsel, Late-stage consumer brand
Before joining Orrick, Josh served as General Counsel at two high-growth, late-stage startups where he built and led legal, compliance, people and operations functions. This hands-on experience gives him a deep understanding of startup dynamics and what it takes to scale responsibly.
He has served as a key leadership voice during periods of hypergrowth, board transitions, crisis response, and internal investigations — bringing valuable market-wide perspective and judgment to fast-moving situations.
Josh is active in New York’s tech and venture ecosystem as a mentor, panelist and investor. He is a frequent speaker on topics ranging from digital health innovation to scaling the legal function as a business driver.
New York
Vicki negotiates project financings, procurement, acquisition and sale of energy and infrastructure projects. She quarterbacks complex mergers and acquisitions as well as project developments that require coordination with a host of different parties and advises on debt and equity financings for renewable and conventional energy projects. Well versed in public-private partnerships (PPP/P3) and securities offerings, Vicki guides clients through the legal and business challenges of large infrastructure projects.
Vicki is recognized nationally by Chambers USA, where clients state that she “is terrific to work with,” and she “always makes herself available and is extremely knowledgeable, intelligent and able to get the best out of everyone she works with.”
A distinctive aspect of Vicki’s practice is her dual focus in both the infrastructure and renewables sectors. She leverages this unique perspective in her client relationships with project developers, sponsors, issuers, lenders and governmental authorities.
Passionate about strategizing to get a project to completion, Vicki helps clients build consensus and find creative solutions with achievable outcomes. Whether it’s for the development of a major airport expansion, the equity or debt financing of a wind farm, or the acquisition of a geothermal facility portfolio, Vicki counsels clients on challenging issues and the broader process, providing commercial advice that considers all stakeholders involved.
New York
With more than 30 years of experience, Richard is widely recognized as one of the nation’s foremost authorities, having broad experience with tax exempt financings and related transactions involving governmental and not-for-profit entities. His skill and stature in the public finance community was recognized by the National Association of Bond Lawyers’ highest award for his career of distinguished service in public finance.
Richard focuses on new products, including the development of new and creative financing techniques for governments, non-profits and investment bankers. He regularly works on transactions throughout the country. However, in his home office in New York City, he leads the relationship with the Port Authority of New York and New Jersey, serving as counsel on well over 100 transactions over a period of more than 20 years and has headed the tax work in connection with every financing of a cultural facility relating to museums and performing arts in New York City over this same period. Richard has worked on the tax aspects of several of the largest and most complex public private partnership (P3) transactions in recent years. He frequently acts as special tax counsel to issuers and underwriters of municipal finance issues.
Boston
With more than three decades of experience advising both private and public companies—and having served as a senior in-house executive across multiple pioneering biotech and life sciences companies—Mark brings a uniquely business minded perspective to his counsel and delivers a rare blend of legal acumen and executive experience that positions him as a trusted strategic partner to entrepreneurs, companies and investors.
Mark is a veteran of hundreds of successful venture capital financings, technology and licensing transactions, strategic alliances, corporate governance matters, mergers and acquisitions, and public and private equity and debt offerings on behalf of companies in every health and biotech related vertical.
Before joining Orrick, Mark was a partner and co-founder of the Wilson Sonsini Boston office. He previously held senior executive roles at Affymetrix (AFFX), Helicos Biosciences (HLCS) and Joule Global Holdings, where he oversaw legal strategy, led public offerings and financings, negotiated strategic partnerships and licensing transactions, and managed critical business functions including HR, finance, and government affairs.
Mark and his wife, Christine, have been married for more than 25 years and have two adult children.
New York
Jacqueline focuses her practice on business litigation, representing clients in high-stakes matters in federal and state courts nationwide. She has extensive experience successfully litigating complex commercial cases at both the trial and appellate levels.