Mark O. Denehy

Mark O. Denehy


Adler Pollock & Sheehan P.C.

Recognized since 2005

Providence, Rhode Island

Practice Areas

Commercial Litigation

Environmental Law

Mass Tort Litigation / Class Actions - Defendants

Product Liability Litigation - Defendants

Lawyer of the Year Badge - 2022 - Environmental Law Lawyer of the Year Badge - 2020 - Mass Tort Litigation / Class Actions - Defendants Lawyer of the Year Badge - 2019 - Environmental Law Lawyer of the Year Badge - 2018 - Mass Tort Litigation / Class Actions - Defendants Lawyer of the Year Badge - 2016 - Product Liability Litigation - Defendants Lawyer of the Year Badge - 2014 - Product Liability Litigation - Defendants
Spinning circle Big letter B

Trial counsel in noted national Superfund cases and toxic tort and environmental insurance coverage litigation, Mark Denehy has successfully represented manufacturers and others in a wide range of complex, high-stakes product liability matters involving asbestos, Silica, DES, radiation exposure, toxic shock litigation and more.

Author of the Toxic Tort Law Desk Reference’s Rhode Island Section, Mark gives his insurance, Superfund and industrial clients informed, connected and accomplished counsel in critical matters that require regional and national management and coordination.

Mark served as Adler Pollock & Sheehan’s Managing Shareholder from 2003–2012 and has won recognition from his peers and professional organizations for his high ethical and legal standards and performance.

Contact & Links

Location

  • One Citizens Plaza, Eighth Floor
    Providence, RI 02903-1345

Education

  • Suffolk University, J.D., graduated 1979
  • University of Connecticut, BA, graduated 1975

Bar Admissions

  • Rhode Island, Rhode Island Bar Association
  • Massachusetts, Massachusetts Bar Association
  • Pennsylvania, Pennsylvania Bar Association
  • Connecticut, Connecticut Bar Association

Lawyer of the Year Badge - 2022 - Environmental Law Lawyer of the Year Badge - 2020 - Mass Tort Litigation / Class Actions - Defendants Lawyer of the Year Badge - 2019 - Environmental Law Lawyer of the Year Badge - 2018 - Mass Tort Litigation / Class Actions - Defendants Lawyer of the Year Badge - 2016 - Product Liability Litigation - Defendants Lawyer of the Year Badge - 2014 - Product Liability Litigation - Defendants

Named "Lawyer of the Year" by Best Lawyers® for:

  • Environmental Law, Providence (2022)
  • Mass Tort Litigation / Class Actions - Defendants, Providence (2020)
  • Environmental Law, Providence (2019)
  • Mass Tort Litigation / Class Actions - Defendants, Providence (2018)
  • Product Liability Litigation - Defendants, Providence (2016)
  • Product Liability Litigation - Defendants, Providence (2014)

Recognized in The Best Lawyers in America® 2023 for work in:

  • Environmental Law
  • Commercial Litigation
  • Mass Tort Litigation / Class Actions - Defendants
  • Product Liability Litigation - Defendants

Special Focus

  • Asbestos
  • Environmental
  • Insurance
  • Mass Tort

Awards:

  • AV rated by Martindale-Hubbell, highest rating given to attorneys.
  • Selected by his peers for inclusion in the 2007-2013 editions of The Best Lawyers in America® in the field of commercial litigation, environmental law and mass tort litigation.
  • Recognized in the Chambers USA America’s Leading Business Lawyers as one of the state’s best in litigation/general and commercial law.
  • Selected as a Rhode Island Super Lawyer, 2007-2012, an honor that recognizes him as a leader in the legal community.

"Mark Denehy is an invaluable resource to Cookson. He is extremely knowledgeable and well respected by his peers in his field. We have benefitted from his counsel for many years. Mark puts the client's best interests uppermost. He is always contactable at any time. He is an excellent communicator. He neither over nor under communicates but ensures that we are always kept fully informed on the "big picture." He will always make sure that we have time to consider matters properly. We are never rushed into having to make decisions. Other professional advisers to the Group have all been highly impressed with Mark's command of his subject matter."

Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B