LAWYER PROFILE
Lori E Lesser

Lori E Lesser

USA 2026

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Simpson Thacher & Bartlett LLP
 Simpson Thacher & Bartlett LLP

Ranked in 1 practice area

Technology

New York

6 years ranked

Technology

USA - Nationwide

6 years ranked

About

Provided by Simpson Thacher & Bartlett LLP

Practice Areas

Lori Lesser is Head of the Firm’s Intellectual Property Practice and Co-Chair of the Firm’s Privacy and Cybersecurity Practice. She advises corporations and private equity firms around the world on all aspects of intellectual property, artificial intelligence, technology, privacy and cybersecurity law, including M&A and other extraordinary transactions, joint ventures, litigation, licensing, counseling and compliance. She counsels clients in matters across industries, including software and tech, media and entertainment, financial services and fintech, consumer products, health care and life sciences, energy and industrials, and online/social media services.

Career

Partner since 2003.

Personal

A.B., magna cum laude and Phi Beta Kappa, Harvard University; J.D., cum laude, Harvard Law School.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Technology - New York

Band 1
Individual Editorial

Lori Lesser has extensive experience handling M&A, IPOs and investment deals for market leaders in a wide range of technologies. She is well-versed in technology-sector IP transactions and litigation.

Learn more about this teamView ranking table

Technology - USA - Nationwide

Band 2
Individual Editorial
Lori Lesser of Simpson Thacher & Bartlett LLP typically covers a range of transactional activities, along with licensing, privacy and tech sector disputes such as IP litigation. She acts for an impressive breadth of industry clients.
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Strengths

Provided by Chambers

  • Lori is one of most brilliant attorneys I have ever worked with. She is absolutely terrific in quickly digesting, and providing sound advice on, hyper -complicated issues.

    TechnologyChambers Guide to the USA

  • Lori consistently demonstrates best-in-class legal counsel and business guidance.

    TechnologyChambers Guide to the USA

  • She is practical, incredibly hard-working and does not miss a beat.

    TechnologyChambers Guide to the USA

  • Lori is an excellent lawyer who handles matters with a sophistication and creativity that has been critical to our success.

    TechnologyChambers Guide to the USA

  • The strength, speed and surefootedness of Lori's intellectual prowess can be immediately sensed in conversation as well as in her written communications, resulting in efficient and sound decision making.

    TechnologyChambers Guide to the USA

  • Lori is practical, incredibly hard-working and does not miss a beat.

    TechnologyChambers Guide to the USA

Ranked Individuals at Simpson Thacher & Bartlett LLP (156)

California

California: Los Angeles & Surrounds

California: San Francisco, Silicon Valley & Surrou

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    Tristan Brown

    Employee Benefits & Executive Compensation

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District of Columbia

Illinois

Massachusetts

New York

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