People

Rebecca Greene Senior Associate

New York

Rebecca has broad experience representing corporations in all stages of litigation, including pre-suit demands, motions to dismiss, fact and expert discovery and depositions, summary judgment, trial preparation, and trial.  Rebecca has drafted various briefs for federal and state proceedings encompassing numerous substantive issues, including administrative law, constitutional law, civil procedure, evidentiary issues, business and contract disputes, and class actions.

Throughout her time at Orrick, Rebecca has maintained an active pro bono practice, largely focused on immigration issues.

Rebecca previously served as a law clerk to Hon. Thomas F. Hogan at the United States District Court for the District of Columbia and Hon. Judith C. McCarthy at the United States District Court for the Southern District of New York.

Timothy D. Greene Partner

Los Angeles; Santa Monica

Tim advises startups and venture capital firms on corporate partnerships, strategic alliances, data privacy, technology protection, and the licensing and commercialization of intellectual property and technology assets. Additionally, he counsels clients on intellectual property, technology and privacy issues in connection with financings, M&A and other corporate transactions.

With experience in managing hundreds of strategic transactions and licensing agreements each year, Tim helps clients streamline deals and navigate complex situations. His work spans various industries, including B2B and B2C SaaS, Web3/crypto, and alternative proteins, allowing him to apply best practices and innovative solutions across sectors. Tim’s extensive experience enables him to deliver tailored strategies for client engagements, ensuring deals progress smoothly, risks are minimized, and opportunities are maximized. He also represents several leading venture capital firms in their investment activities.

Tim has negotiated significant corporate partnerships, strategic alliances, and licensing arrangements with and against some of the world’s most influential companies, including retail giants, technology innovators, automotive manufacturers and major financial institutions worldwide. Tim is a former Residential Fellow for Copyright and Fair Use at Stanford Law School’s Center for Internet and Society.

Dr. Sven Greulich, LL.M. (Cantuar), EMBA Partner

Düsseldorf

Sven advises technology companies on complex cross-border mergers and acquisitions, and venture capital as well as growth investments, and provides general corporate counseling.

His clients include technology companies of all stages and their investors. Supported by a global and cross-practice team, he also counsels major corporations and scale-ups on international expansion and growth projects and has a special focus on in- and outbound German/US investments and joint ventures.

Sven is passionate about building a bridge for his clients from Germany to the US and other international technology hubs and to help them succeed in the international market. With a dual background in business and law, an entrepreneurial spirit, and experience in over 300 M&A transactions and financing rounds across many industries, Sven has a unique perspective, which inspires him to find the best strategic and commercially viable solution for his clients.

Sven volunteers with entrepreneur groups at the WHU Otto Beisheim School of Management and the RWTH Aachen and regularly lectures at the WHU and the RWTH incubation and innovation centers on venture capital financings, start-up growth and corporate venture capital.

Sven's work has been repeatedly awarded, inter alia

• Chambers ranks him as one of the top 3 venture capital lawyers in Germany (2025);
• the leading German market publication JUVE lists him as "frequently recommended" for M&A, private equity, as well as corporate advice and - since 2019 - ranks Sven as one of Germany's top 15 attorneys for venture capital, the highest recognition for this category awarded by JUVE (2024/2025);
• Legal500 Deutschland includes Sven as "frequently recommended" for M&A (mid-sized deals) as well as private equity (mid-sized deals) and ranks him as a "leading individual" for venture capital (2025); and
• in the 2017 edition of its Innovative Lawyers Report Europe, the Financial Times named Sven's work to connect start-ups with Germany's Mittelstand (mid-sized companies) a standout “for making bridges between Silicon Valley and Germany”.

Rebecca Grevitt Senior Associate

London

Christopher Grew Partner

London

Drawing from his comprehensive experience, network and passion for all things geek, Chris forms an integral part of the European tech ecosystem. Chris advises companies in venture capital transactions, public offerings and cross-border mergers and acquisitions. He also advises high-growth companies, investment banks, and venture capital firms on fundraising, international business operations and transactions.

As noted in the engagements below, Chris works closely with those powering the next generation of technology, from revolutionary AI companies to influential investors. His track-record and industry-wide reputation were noted in the most recent Legal 500 edition, which describes Chris as “excellent,” accompanied with a band 1 ranking in venture capital investment by Chambers and Partners 2021.  

Adam Griffin Partner

New York

He regularly advises sponsors, lenders, financial institutions and private equity investors in debt and equity financings and restructurings across the renewable energy, conventional energy and infrastructure sectors.

Manny Grillo Partner

New York

In addition to troubled companies, his clients include investment funds, sponsors and other financial institutions, whom he counsels on insolvency and restructuring matters related to complex financings and securitizations. He also represents sellers and purchasers in distressed merger and asset transactions.

With significant experience across industries such as power, energy, real estate, transportation, technology, healthcare and financial services, Manny negotiates rescue and recapitalization financing transactions on behalf of both lenders and borrowers, including debtor-in-possession loans. He also litigates disputes arising in or from plan confirmations, lender liability matters, avoidance actions and liability management transactions. In addition, Manny represents clients in commercial litigation involving financial instruments and internal investigations in both state and federal courts.

Active in industry and civic organizations, Manny is involved with the American Bankruptcy Institute and the Microenterprise Project of Volunteers of Legal Services (VOLS) in New York City. He also recently served as a member of the Complex Chapter 11 Case Committee for the US Bankruptcy Court for the S.D. of Texas and the Editorial Advisory Board for Bankruptcy Law360.

Jessica Grimm Career Associate

Wheeling, W.V. (GOIC)

Gregg Griner Partner

Boston; Chicago

Gregg represents companies in all stages of their life cycles, from start-ups to public companies, and in a variety of industries including, software, hardware, information services, financial services, financial technology, consumer goods, fashion, media, energy, medical devices and pharmaceuticals. He advises these companies in many aspects of their businesses including financings, corporate governance, employment matters, acquisitions, divestitures, licensing and distribution arrangements, and joint ventures and strategic partnerships.

Gregg also represents venture capital firms in their formation, fundraising efforts and maintenance, as well as in their investments in early and later stage operating companies and in complex leveraged transactions and restructurings. Gregg has worked with a number of leading technology and life science companies in connection with their initial and follow-on public offerings, M&A activities and leading investment banks in their underwriting of public equity and debt offerings.

Gregg has received praise from numerous peer publications, including Best Lawyers (Technology Law, Massachusetts) and Massachusetts Lawyers Weekly (Go-To Lawyer for Healthcare/Life Sciences).

Mitchell Grod Sr Counsel & Counsel to Winnow

Santa Monica

His clients include depository institutions, mortgage lenders and brokers, automobile lenders and finance companies, debt collectors and related service providers. He has significant experience advising clients on a myriad of state and federal regulatory matters.

Mitch is a member of the American Financial Services Association’s State Governmental Affairs Committee and Operations and Regulatory Compliance Committee. He has been recognized by Best Lawyers in America as "One to Watch" three times.

Prior to joining Orrick, Mitch was senior counsel at Buckley LLP.

Tami Grosko Director Court Services and Bar Admissions Counsel

Washington, D.C.

Tami manages the Court Services Department, which consists of the East Coast Managing Attorney's Offices and the West Coast Calendar Department. Tami advises on a range of issues related to civil and appellate procedure and court rules.

Before joining Orrick, Tami was an Assistant County Attorney for Miami-Dade County for three years defending the county and its employees in tort actions brought in federal and state courts.

Jason Grube Managing Associate

Seattle

Jason is a member of Orrick's technology companies practice group. He works with both early-stage and late-stage companies and assists with all aspects of formation and venture capital financing. He provides advice to companies seeking exit transactions such as mergers & acquisitions, initial public offerings, or SPAC transactions. Jason also advises investors planning to invest in tech companies in various industries and markets.

Prior to joining Orrick, Jason served in the U.S. Army as an Infantry officer and as a Military Intelligence officer.