Thomas C. Koessl


Thomas C. Koessl

Partner | 312-456-7952 |

Thomas C. Koessl defends corporations and individuals against employment-related claims, helping businesses and executives avoid or minimize the financial and public-relations costs associated with such disputes. Mr. Koessl has represented small, large and multinational corporations, as well as CEOs and high-profile leaders, in numerous federal and state courts and in administrative proceedings. His work is broad ranging. In addition to helping clients address allegations of race, sex and national-origin discrimination, he provides counsel on matters such as breach of fiduciary duty, breach of contract, securities, environmental contamination, defamation, and legal and accounting malpractice lawsuits.

Mr. Koessl has been recognized with the 2021 Leading Lawyers distinction.

Professional Services and Affiliations

• Department Chair for the Labor and Employment Law Group
• Develop, refine, and implement strategy for a wide variety of complex commercial and employment cases from initiation of the case through trial, including management of litigation budgets and supervision of associates and paralegals
• Prosecute or defend injunction hearings nationwide on restrictive covenant or trade secret claims
• Counsel clients on all aspects of labor and employment law, such as ADA, FMLA, and NLRA compliance, employee discipline and labor relations. Represent clients before the EEOC, IDHR, and DOL
• Counsel clients on non-compete agreements, terminations, separation agreements, and other workplace issues
• Represent numerous companies as outside general counsel

Bar Admissions

State of Wisconsin, November 1996
State of Illinois, April 1997
Northern District of Illinois, June 1997
Seventh Circuit Court of Appeals, October 2000


Chicago-Kent College of Law – Illinois Institute of Technology, Chicago, IL
Juris Doctor, with High Honors, May 1996
Class Rank: 25/395, Top 7% Order of the Coif,
Staff member on Chicago-Kent Law Review, 1994 – 1996

University of Wisconsin – Parkside, Kenosha, WI
Bachelor of Arts in Economics and Political Science, Cum Laude, May 1993

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