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  3. | Annabel Tresise

Annabel Tresise

Senior Counsel

San Francisco

  • 415.956.1900
  • 415.792.9444
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Annabel is a California-qualified attorney and member of Bartko Pavia's trial team, with a practice that spans complex commercial, intellectual property and antitrust matters. Prior to joining Bartko Pavia, Annabel worked at an AmLaw100 firm, representing Fortune 500 companies in commercial and liability disputes.

Annabel commenced her legal career in Australia, clerking for Associate Justice Efthim at the Supreme Court of Victoria. She was then admitted as a barrister at the Victoria Bar, where she developed a strong complex commercial trial practice representing corporations, government entities, liquidators and high net worth individuals, often serving as second chair to leading Australian commercial counsel. Prior to moving to the United States, Annabel taught insolvency law at Melbourne Law School, a top ten global law school. 

Annabel has a Master of Laws from the University of California, Berkeley, where she attended on scholarship and received the prize for legal research and writing. Her focus was on AI law and regulation, intellectual property and technology law. She speaks and writes regularly on these issues and is a founder and executive committee member of the Bar Association of San Francisco's AI and Technology Practice Section.

  • Bar Association of San Francisco – Founding Executive Committee Member, AI & Technology Practice Group
  • Bar Association of San Francisco – Executive Committee, Cyber Security and Privacy Practice Group
  • The Lawyers Club of San Francisco – IP Inn of Court
  • California Lawyers Association – IP, Antitrust and litigation practice groups

Credentials

Education

  • University of California Berkeley, Master of Laws, Scholarship recipient; prize for Legal Research and Writing; Dean's List, 2025
  • University of Melbourne, Juris Doctor, 2017
  • University of Sydney, Bachelor of International and Global Studies (Philosophy and Political Economics), 2012

Bar Admissions

  • California State Bar, 2023
  • Victoria Bar, 2021

Court Admissions

  • United States District Court for the Northern District of California, 2023
  • High Court of Australia, 2021
  • Supreme Court of Victoria, 2018

Recognitions

  • UC Berkeley - Prize for legal writing and research; scholarship

Experience

  • Secured dismissal of claims against a Fortune 500 technology company through a successful demurrer to the second amended complaint.
  • Represented a leading satellite communications provider in a trade secret misappropriation claim against a competitor, securing a favorable settlement.
  • Successfully obtained dismissal via demurrer of claims against an international technology company with no nexus to California.
  • Successfully represented an individual creditor in obtaining approval for a liquidator's sale of a corporate trustee's right of indemnity against the individual beneficiaries of a corporate trust (Australia).
  • Successfully represented a Melbourne property developer in a complex building contract dispute, securing favorable rulings on both claim and counterclaim (Australia)

Publications

  • Annabel Tresise. “Case Comment: Bartz v. Anthropic PBC — Copyright Liability for AI Training Models,”
    Harvard Art Law Review (forthcoming, 2025).
  • Annabel Tresise, Jake Goldenfein and Daniel Hunter, “What Blockchain Can and Can’t Do for Copyright”
    (2018) 28 Australian Intellectual Property Journal 144.
  • Webb J., Patterson J., Tresise A. and Miller T., on behalf of the Australian Council of Learned Academies (July
    2019) Legal Services: Input paper for the Horizon Scanning Project, “The Effective and Ethical Development of
    Artificial Intelligence: An Opportunity to Improve our Wellbeing.”
  • Panel Speaker, State of the Arts: Copyrightability & AI in 2025, hosted by the Bar Association of San Francisco,
    Art Law Section (2025).
  •  Presenter, Ethical Duties Owed to Former Clients, LegalWise Seminars (2021).
  •  Panel Speaker, Alumni Reflections, Orientation Day for the 2021 JD class at Melbourne Law School (2021).
  •  Panel Speaker, Diverse Legal Careers (Alumni Series), JD Forum at Melbourne Law School (2020).
  • Panel Speaker, Disrupting Law, hosted by the Disruptive Business Network (2019).
  • Debater, Disruptive Debate Series: Lawyers Will Be Irrelevant, hosted by the Disruptive Business Network
    (2019).
  • Panel Speaker, Responsible AI: Foundation Panel and Fishbowl, hosted by Responsible AI Melbourne (2018).

Areas of Focus

Practices

  • Intellectual Property
  • Labor & Employment
  • Litigation

Industries

  • Fashion & Luxury Goods
  • Media & Entertainment
  • Technology

Insights & News

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

Press Release

17, December 2025

Bartko Pavia Elevates Four Attorneys to Partnership

Learn more

Honors and Awards

26, November 2025

Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List

Learn more

Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Media Mentions

30, May 2025

Zest Labs $222M Verdict Gains Widespread Media Coverage

Learn more

Honors and Awards

01, January 2025

Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings

Learn more

Press Release

14, May 2025

Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart

Learn more

Press Release

23, December 2025

Bartko Pavia Elevates Howland Gordon to Equity Partnership

Learn more

Speaking Engagements

30, January 2026

An Nguyen Ruda Joins Panel on Law Firm Governance and Organizational Structure

Learn more

Press Release

31, May 2019

Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.

Learn more

Press Release

01, August 2025

Bartko Pavia Continues Strategic Expansion with Addition of Antitrust Partner Ian Papendick

Learn more

Media Mentions

05, February 2024

Bartko Pavia Obtains Defense Win in Uber Trade Secret Case

Learn more

Speaking Engagements

20, February 2026

An Nguyen Ruda Discusses Building Authentic Culture at Bartko Pavia LLP

Learn more

Honors and Awards

24, January 2024

Patrick M. Ryan Named Leading Commercial Litigator

Learn more

Speaking Engagements

17, February 2026

Giovanni Spinelli Presents at Milan Bar Seminar on Judicial and Prosecutorial Independence

Learn more

Honors and Awards

08, November 2023

Bartko Pavia Ranked Top Litigation Boutique

Learn more

Press Release

11, March 2022

Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action

Learn more

Press Release

07, February 2023

Bartko Pavia Clients Win $680 Million Francesca Naify Case

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

Press Release

17, December 2025

Bartko Pavia Elevates Four Attorneys to Partnership

Learn more

Honors and Awards

26, November 2025

Patrick M. Ryan Named to Daily Journal’s 2025 “Top Antitrust Lawyers” List

Learn more

Honors and Awards

23, September 2025

Patrick M. Ryan Earns Repeat Recognition as 2025 Top 100 Lawyer

Learn more

Media Mentions

30, May 2025

Zest Labs $222M Verdict Gains Widespread Media Coverage

Learn more

Honors and Awards

01, January 2025

Bartko Pavia Earns Recognition in 2025 Best Law Firms® Rankings

Learn more

Press Release

14, May 2025

Bartko Pavia’s Patrick M. Ryan obtains $222 million jury verdict against Walmart

Learn more

Press Release

23, December 2025

Bartko Pavia Elevates Howland Gordon to Equity Partnership

Learn more

Speaking Engagements

30, January 2026

An Nguyen Ruda Joins Panel on Law Firm Governance and Organizational Structure

Learn more

Press Release

31, May 2019

Bartko Pavia Firm Obtains $845,114,000 Judgment for ASML Against XTAL, Inc.

Learn more

Press Release

01, August 2025

Bartko Pavia Continues Strategic Expansion with Addition of Antitrust Partner Ian Papendick

Learn more

Media Mentions

05, February 2024

Bartko Pavia Obtains Defense Win in Uber Trade Secret Case

Learn more

Speaking Engagements

20, February 2026

An Nguyen Ruda Discusses Building Authentic Culture at Bartko Pavia LLP

Learn more

Honors and Awards

24, January 2024

Patrick M. Ryan Named Leading Commercial Litigator

Learn more

Speaking Engagements

17, February 2026

Giovanni Spinelli Presents at Milan Bar Seminar on Judicial and Prosecutorial Independence

Learn more

Honors and Awards

08, November 2023

Bartko Pavia Ranked Top Litigation Boutique

Learn more

Press Release

11, March 2022

Bartko Pavia Scores Huge Defense Jury Verdict in $411 Million Sutter Health Antitrust Class Action

Learn more

Press Release

07, February 2023

Bartko Pavia Clients Win $680 Million Francesca Naify Case

Learn more

Press Release

30, October 2025

An Ruda Serves as Judge at the Berkeley Female Founders & Funders Summit

Learn more

Honors and Awards

17, May 2023

Patrick M. Ryan Ranked Top IP Lawyer

Learn more

Media Mentions

27, October 2025

Steve Vieux Featured in Law360 Coverage of the California Lawyers Association’s Golden State Institute

Learn more

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