Zac Ciullo is a litigation partner in Kirkland & Ellis LLP’s Chicago office, whose practice focuses on complex commercial litigation with experience in federal and state courts and private arbitration. His cases span across multiple areas, including business torts, product liability, breach of contract, fraud, environmental, public health, and data breach. Zac also maintains an active pro bono practice.


Memberships & Affiliations

Member, International Association of Defense Counsel, 2023

Mentor, LINK Unlimited Scholars Program, 2018–2022


Admissions & Qualifications

  • 2018Illinois
  • 2014Ohio


  • United States Court of Appeals for the Seventh Circuit
  • United States District Court for the Northern District of Illinois
  • United States District Court for the Western District of Michigan


  • University of Michigan Law SchoolJ.D.magna cum laude2013
    Contributing Editor, Michigan Journal of Private Equity & Venture Capital Law

    Research Assistant for Professor Kyle D. Logue

    Certificate of Merit in Legal Ethics and Professional Responsibility

    Michigan Letterwinners Postgraduate Scholarship Award

  • University of MichiganB.A., Psychologywith Honors2011

    Varsity Football

    Academic All-Big Ten