Advertising Disclosure Email Disclosure
PDF version

Colleen Bannon

Director of Human Resources
2000 Market Street, Suite 2300
Philadelphia, PA 19103
(215) 575-2852
(215) 575-0856 - Fax

Colleen Bannon holds the position of director of human resources, and is a shareholder at Marshall Dennehey. Colleen still maintains her law practice, which focuses on privacy and data security, where she has represented numerous medical providers, retailers, e-commerce and public entity clients, in data breach actions. She is also experienced in employment discrimination, civil rights and public entity liability defense.

Prior to her position as the director of human resources, Colleen led our firm's E-Discovery program. Her significant litigation and IT background allowed her to work closely with other attorneys in the firm, to provide our clients with cutting-edge legal advice and guidance in this complex and evolving area of law. Colleen is also highly experienced with a variety of other litigation support tools such as Recommind and Access Data's Summation Pro. This deep understanding of technology applications, is significant to Colleen’s employer and business owner clients, particularly when dealing with exposure in privacy and data security.  

Colleen has spoken at numerous conferences, as well as internal seminars, on the topics of electronic discovery in litigation, social media in the workplace, and privacy and data security. She was an author for the Labor Report, a monthly publication of the Pennsylvania Chamber of Business and Industry which features articles on employment law issues including sexual harassment, disability and racial discrimination.

In 1980, Colleen began employment with Marshall Dennehey Warner Coleman & Goggin as a member of the firm's support staff. While continuing full-time employment with the firm, first as a secretary and then as an applications specialist with the firm's IT department, Colleen obtained her Bachelor of Arts degree, magna cum laude, from Holy Family College in 1992. She then went on to receive her juris doctor from Temple University, in 1996.

Classes/Seminars Taught

  • Using Technology to Find Facts Fast, Insurance Carrier's 2017 Panel Counsel Summit, May 8 - 10, 2017

  • The Many Considerations Pertaining to the ESI 30(b)(6) Witness, International Association of Defense Counsel, Construction Law Committee, Annual Meeting, 2008

  • E-Discovery Law Update, Pennsylvania Defense Institute Annual Meeting, 2007

  • Electronic Data: When Delete Does Not Mean Goodbye, PLRB Claims Conference, 2006 Annual Meeting

  • Electronic Discovery and the Federal Rules of Civil Procedure, Manufacturers Alliance/MAPI, 2006

Published Works

  • "Pennsylvania Supreme Court Addresses Important PA Human Relations Act Issues," Defense Digest, Vol. 5, No. 2, 1999 and Pennsylvania Law Weekly, June 6, 1999

  • Labor Report, a monthly publication of the Pennsylvania Chamber of Business and Industry 

  • "Employment Law Cases -Recent Developments," CounterPoint, a publication of the Pennsylvania Defense Institute

  • "A Recreational Hazard: Governmental Immunity: New Cases May Result in Greater Liability for Municipalities Under the Real Property Exception," Pennsylvanian, The Magazine of Local Governments

  • "Governmental Immunity: Greater Liability Under The Real Property Exception," Defense Digest, Vol. 3, No. 5, 1997


  • Temple University School of Law, Philadelphia, PA (J.D., 1996)

  • Holy Family College, Philadelphia, PA (B.A., 1992)

    Honors: magna cum laude
    Honors: Alpha Sigma Lambda, Lambda Iota Tau 

Defense Digest Article March 1, 2015
As Director of Legal Information Services at Marshall Dennehey, I frequently speak to our 485 attorneys about ways they can use technology to provide innovative and cost-efficient legal services to our clients. When posed questions about which..., Defense Digest, Vol. 21, No. 1, March 2015 Defense Digest is prepared by Marshall Dennehey Warner Coleman & Goggin to provide information on recent legal developments of interest to our readers. This publication is not intended to provide legal...
February 15, 2017
Marshall Dennehey attorneys Colleen Bannon, Shareholder and Director of Legal Information Resources, and professional liability associate, Diana P. Cortes, have been appointed the 2017 Co-Chairs of the Philadelphia Bar Association's Federal Courts Committee. Ms. Bannon also served as the committee'...
December 21, 2015
Colleen Bannon, Shareholder and Director of Legal Information Resources, has been appointed a Vice-Chair of the Philadelphia Bar Association's Federal Courts Committee. The committee serves as an informational liaison between the federal courts covering the Eastern District of Pennsylvania and...


  • Temple University School of Law (J.D., 1996)
  • Holy Family College (B.A., magna cum laude, 1992)

Bar Admissions

  • Pennsylvania, 1996

Associations & Memberships

  • Defense Research Institute
  • Pennsylvania Bar Association
  • Philadelphia Bar Association, Chair, Federal Courts Committee, 2017; Vice-Chair, 2016

Before you send this email please note:

You are attempting to send email, through a link on our website, to an attorney of Marshall Dennehey Warner Coleman & Goggin or an employee in our firm. Please note that your email may not be treated as confidential and does not create an attorney-client relationship. You should not rely upon the transmission of an email through this website if you are seeking to enter into such a relationship. Until such time as we have agreed to represent you, no information in your email will be treated as confidential. Please contact us directly by telephone at 1.800.220.3308 if it is your intent to seek legal counsel with our firm or convey confidential information.

If it is still your intent to send this email, knowing that it may not be treated as confidential, you may accept our terms of agreement by pressing "OK". If you choose not to accept these terms of agreement you may navigate away from this page by pressing "Cancel."