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    Home /  Palo Alto

    Palo Alto

    Sullivan & Cromwell LLP
    550 Hamilton Avenue
    Palo Alto CA 94301-2010, United States
    T: +1-650-461-5600
    F: +1-650-461-5700
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    A unique business environment thrives in Silicon Valley. At the same time, technology companies stand at an inflection point, facing the potential for increased government regulation of Big Tech and emerging technologies, growing cybersecurity and data privacy concerns, and constant pressure from new disruptors.

    Since Sullivan & Cromwell opened its Palo Alto office in 2000, we have integrated our leading worldwide practices in M&A, Antitrust, Intellectual Property, Artificial Intelligence, Capital Markets, Litigation, Corporate Governance, Tax, Fintech, Cybersecurity and Criminal Defense & Investigations into our work for clients here. Across decades we have advised on some of the most prominent transactions and litigation in the world of Technology.

    We view ourselves first and foremost as business lawyers, assembling multi-disciplinary teams to help each client reach their strategic objectives. We work with our clients to find new ways to keep ahead of rapid developments and to navigate their businesses smoothly through continued change.


    Sarah P. Payne

    Sarah Payne is managing partner of Sullivan & Cromwell’s Palo Alto office and is co-head of the Capital Markets Group and Technology M&A and Finance Group. Sarah has a broad-based corporate practice, focusing on public and private securities offerings, M&A transactions and investments in venture capital funds.

    “Our multidisciplinary approach enables clients to execute on the best strategies to achieve their goals.”

    –Sarah Payne

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    Spotlight

    xAI and X Merge in a $113 Billion Transaction

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    S&C Advises Initial Purchasers of Unity Software’s $690 Million Notes Offering

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    Sullivan & Cromwell Adds Kyle Mach as a Partner, Enhancing Antitrust and Technology Practices

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    Nader Mousavi Lectures for Stanford Law AI Governance Online Program

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    ‘Corporate Practice of the Year’

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    • Rankings and Recognitions
    • News
    • Publications, Videos and Podcasts
    • Office Contacts
    • Related Practices
    Rankings and Recognitions

    Rankings and Recognitions

    • Nader Mousavi Named to Daily Journal’s ‘Top 100 Lawyers’ in California List

      September 9, 2024
    • Renata Hesse Again Named to Daily Journal’s ‘Top Women Lawyers’ in California List

      June 20, 2024
    • Eight S&C Intellectual Property Lawyers Named to IAM Patent 1000

      June 12, 2024
    • Arm’s Nasdaq IPO Wins ‘Securities Deal of the Year: Equity’ at Asia Legal Awards

      March 19, 2024
    • S&C Tops Multiple Capital Markets Rankings for 2023

      January 22, 2024
    • S&C Recognized by FT Innovative Lawyers North America Awards for Advising OpenAI in Microsoft Deal

      December 6, 2023
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    News

    News

    • S&C Advises Ares in Acquisition of Epika Fleet Services

      April 22, 2025
    • xAI and X Merge in a $113 Billion Transaction

      March 28, 2025
    • S&C Advises Initial Purchasers of Unity Software’s $690 Million Notes Offering

      March 14, 2025
    • Nader Mousavi Lectures for Stanford Law AI Governance Online Program

      February 25, 2025
    • S&C Advises ASGN in $340 Million Acquisition of TopBloc

      February 5, 2025
    • S&C Advises Symbotic in Acquisition of Walmart’s Advanced Systems and Robotics Business

      January 23, 2025
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    Publications, Videos and Podcasts

    Publications, Videos and Podcasts

    • Brendan Cullen and Tony Lewis Collaborate with Latin Lawyer on The Guide to Corporate Compliance, Fifth Edition

      Books |  July 10, 2024
    • Brendan Cullen and Anthony Lewis Collaborate with Latin Lawyer on The Guide to Corporate Compliance, Fourth Edition

      Books |  July 25, 2023
    • Preparing Companies for Universal Proxies 

      Podcasts |  October 5, 2022
    • Brendan Cullen and Anthony Lewis Collaborate with Latin Lawyer on The Guide to Corporate Compliance, Third Edition

      Books |  August 25, 2022
    • Non-GAAP Financial Measures

      Podcasts |  January 10, 2022
    • Developments Affecting 10b5-1 Trading Plans

      Podcasts |  December 6, 2021
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    Office Contacts

    Office Contacts

    Sarah P. Payne Headshot Photo
    Sarah P. Payne
    Palo Alto
    +1-650-461-5669
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    Related Practices

    Related Practices

    • Antitrust
    • Artificial Intelligence
    • Capital Markets
    • Corporate Governance
    • Criminal Defense & Investigations
    • Cybersecurity
    • Fintech
    • Intellectual Property & Technology Litigation
    • Intellectual Property & Technology Transactions
    • Litigation
    • Mergers & Acquisitions
    • Tax
    • Technology
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