O’Melveny Worldwide

Zach Greenberg

Partner

Century City Office
Areas of Focus
Areas of Focus
Corporate & Transactions
Mergers & Acquisitions
Overview Experience Insights News Credentials

Zach is a versatile M&A lawyer who brings a solutions-oriented approach to helping private equity funds and other institutional investors, as well as founder-run businesses, emerging growth companies and multinational corporations, achieve their objectives. His practice focuses on mergers and acquisitions and various investment transactions, including leveraged buyouts, stock and asset acquisitions, mergers, minority investments, corporate carve-outs, joint ventures, equity financings, and strategic commercial transactions.

Zach prides himself on understanding his clients’ businesses and goals in order to deliver bespoke strategic legal counsel. Over the course of his career, he has developed strong expertise working with companies operating in enterprise software and SaaS, business services, insurance, consumer products/brands, food and beverage, transportation and infrastructure, and franchisor/franchisee settings.

He offers deep knowledge of the entertainment, sports, and media landscape as well, drawing on years spent assisting the industry’s leading studios and production companies, content producers, and strategic investors on acquisitions, dispositions, strategic joint ventures, and capital-raising transactions.

Zach also provides general corporate counseling to public and private companies and private equity portfolio companies, leveraging his experience as a law clerk to the Chief Justice of the Delaware Supreme Court to deliver practical advice to management teams, boards, and other governing bodies on fiduciary duties and other corporate matters.

Thomson Reuters’ Super Lawyers recognized Zach as a Rising Star in 2018 (Southwest Super Lawyers), 2022 (Southern California Super Lawyers), and 2023 (Southern California Super Lawyers).

Prior to entering private practice, Zach served as a law clerk to Hons. Chief Justice Myron T. Steele and Justice Randy J. Holland of the Delaware Supreme Court.

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  • Represented middle-market private equity fund in numerous acquisitions and dispositions of portfolio companies.
  • Represented international private equity fund in its acquisition of a plastics company.
  • Represented publicly traded provider of hunting, shooting, and rugged outdoor products in multiple acquisitions.
  • Represented Florida-based enterprise software company in its acquisition of an information security company.
  • Represented Florida-based enterprise software company in equity financing transaction.
  • Represented Boston-based human resources and benefits management software company in equity financing transaction.
  • Represented transportation and logistics company in US$50 million secondary offering of common stock.
  • Represented equipment leasing company in shelf offering and subsequent takedowns of asset-backed securities for an aggregate of over US$3.0 billion.

Admissions

Bar Admissions

  • Arizona
  • California

Education

  • Washington University School of Law, J.D.: magna cum laude; Order of the Coif; Editor-in-Chief, Washington University Law Review, Vol. 90:4
  • Washington University in St. Louis, B.A.

Honors & Awards

  • Recommended by The Legal 500 US for Sport (2022)
  • Named a “Rising Star” by Southwest Super Lawyers (2018) and Southern California Super Lawyers (2022-2023)

Professional Activities

Clerkships

  • Honorable Chief Justice Myron T. Steele, Delaware Supreme Court
  • Honorable Justice Randy J. Holland, Delaware Supreme Court

Community Involvement

  • Co-Chair, LA/OC Chapter of the Alumni and Parents Admissions Program for Washington University in St. Louis

Publications

  • “Tossing the Red Flag: Official (Judicial) Review and Shareholder-Fan Activism in the Context of Publicly Traded Sports Teams,” 90 Wash U L. Rev. 1255 (2013)

Speaking Engagements

  • “Special Issues: Financial Sponsors and Insurance Dealing with Financial Sponsors of Privately Held Companies,” Practising Law Institute Acquiring or Selling the Privately Held Company 2025 (May 2025)
Related Practices
Corporate & Transactions
Mergers & Acquisitions
Private Equity
Special Credit & Liability Management