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Recent News:
Chambers USA, the leading annual guide to the top lawyers and law firms in the United States, has ranked 98 Cozen O’Connor lawyers as leaders in their respective fields in the guide’s 2025 edition.
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Established in October 2000, the firm’s Chicago office is located in the second largest downtown business district in the United States. In 2015, our Chicago presence grew with the addition of 59 attorneys from the Chicago-based Meckler, Bulger, Tilson firm.
Cozen O’Connor’s Chicago office attorneys provide clients with a wide variety of services including labor and employment, complex insurance coverage, complex product liability and tort defense, first and third-party coverage, subrogation and recovery, commercial litigation, and white-collar defense and government investigations.
We are committed to being active and involved in the Chicago community. Our lawyers serve on nonprofit boards and many of our lawyers and professional staff members enthusiastically serve as volunteers for area nonprofits.
June 05, 2025
Chambers USA, the leading annual guide to the top lawyers and law firms in the United States, has ranked 98 Cozen O’Connor lawyers as leaders in their respective fields in the guide’s 2025 edition.
April 23, 2025
Barszcz, who advises and represents clients facing employment discrimination, retaliation, whistleblower, and wage and hour claims in both state and federal courts, joins Cozen O’Connor as a member and will work out of its Chicago office.
April 21, 2025
Cozen O’Connor attorney Christopher S. Hennessy, a member of Cozen O’Connor’s Commercial Litigation Department, has been named to the 2025 list of Crain’s Chicago Business “Notable Litigators & Trial Attorneys.”
March 20, 2025
“It’s always a pleasure to recognize the hard work and dedication of our attorneys and government relations professionals,” said Chairman and Chief Executive Officer Michael J. Heller. “This outstanding class of new members and senior principals will undoubtedly propel Cozen O’Connor’s ongoing success.”
February 05, 2025
Holman — who has served as Chicago’s deputy mayor of Intergovernmental Affairs and, prior to that, deputy director of Legislative Affairs for Illinois Governor J.B. Pritzker — has returned to its highly esteemed government relations practice.
January 21, 2025
Super Lawyers has named seven attorneys 2025 Illinois Super Lawyers and two attorneys 2025 Illinois Rising Stars.
January 10, 2025
Matthew Glavin, a managing director at Cozen O’Connor Public Strategies in Chicago, was highlighted in Chicago Lawyer’s article “Rooting Out Bad Actors” for his instrumental role in advancing landmark artificial intelligence (AI) legislation through the Illinois State Legislature, culminating in its signing by Governor JB Pritzker.
January 09, 2025
Matthew DiCianni was featured in a Notre Dame Lawyer magazine article discussing his dedication to pro bono work.
January 01, 2025
Melissa Siebert was quoted in a Law360 article discussing the rise of lawsuits that allege violations of the California Invasion of Privacy Act, which prohibits the interception or recording of communications without all parties' consent.
November 07, 2024
In 2024, Best Lawyers received more than 100,000 client references and observed a 65% increase in client participation in their survey.
October 21, 2024
Christina Sanfelippo, an associate in Cozen O’Connor’s Bankruptcy, Insolvency & Restructuring Practice, has been selected as an honoree of the American Bankruptcy Institute’s 2024 “40 Under 40” Emerging Leaders in Insolvency Practice award program.
October 15, 2024
Following his unanimous re-election to CEO, Michael Heller spoke with Law360 Pulse about the successes and challenges of the last three years and his priorities for the next three.
October 01, 2024
Lawdragon has named six members of Cozen O’Connor’s Labor & Employment Department to its annual list of Leading U.S. Corporate Employment Lawyers. Among the honorees are Joseph Tilson, A. Martin Wickliff, Jr., Anna Wermuth, Jeremy Glenn, Susan Eisenberg, and Michael Schmidt.
September 11, 2024
Melissa Siebert, co-founder and chair of Cozen O’Connor’s Emerging Data Privacy Trends practice, has been named to Crain’s Chicago Business 2024 list of Notable Leaders in Accounting, Consulting & Law.
September 05, 2024
Cozen O’Connor is pleased to announce that the firm’s Corporate Practice has been selected by The American Lawyer as a 2024 Best Corporate Practice of the Year finalist for 2024.
August 15, 2024
Best Lawyers selected 242 Cozen O’Connor lawyers from 24 of the firm’s U.S. offices for inclusion in the 2025 edition of The Best Lawyers in America and Best Lawyers: Ones to Watch in America.
August 08, 2024
Jeremy Glenn was quoted in a SHRM article discussing how employers are reconsidering policies amidst the upcoming presidential election.
June 28, 2024
Lawdragon has named Cozen O’Connor attorneys Mark Felger and Brian Shaw,
both members in the firm’s Bankruptcy, Insolvency & Restructuring practice, to its 2024 list of the Top 500 Leading U.S. Bankruptcy and Restructuring Lawyers.
June 10, 2024
Chambers USA rankings are based on an “assessment of a firm’s work and opinions from external market sources, with an emphasis on client feedback.” In order to be ranked in the guide, lawyers and firms must demonstrate “sustained excellence.”
May 13, 2024
Elizabeth Olivera, an associate in Cozen O’Connor’s Immigration Practice, will be honored with the Rising Stars Award at the National Immigrant Justice Center’s (NIJC) 25th Annual Human Rights Awards on June 4.
March 15, 2024
“This is a group of terrific lawyers across many offices and practices areas and we look forward to following their achievements,” said Executive Chairman and Chief Executive Officer Michael J. Heller.
March 05, 2024
Ira Bodenstein, Jack Carriglio, Janet Davis, John Dunn, Mitch Edlund, Wendy Enerson, Gary Gassman, Tia Ghattas, Jeremy Glenn, Erin Bolan Hines, Mark Rabinowitz, Peter Roberts, Brian Shaw, Joseph Tilson, Julie Trester, Peter Valeta, Anna Wermuth, and Brian Williams were recognized as Leading Lawyers, Christina Sanfelippo was recognized as an Emerging Lawyer.
January 30, 2024
Matthew DiCianni was interviewed by the University of Illinois College of Liberal Arts and Sciences for their LAS@Work profile, crediting the university for preparing him for a successful career at Cozen O’Connor.
January 29, 2024
The Cozen O’Connor attorneys who have been recognized by their peers in Illinois as Super Lawyers are Jack Carriglio, Janet Davis, Jeremy Glenn, Allen Guon, Peter Roberts, Brian Shaw, Joe Tilson, and Anna Wermuth. Amy Doig, David Doyle, and Corey Hickman were named to this year’s Illinois Rising Stars list. This is Hickman’s first year on the Rising Stars list.
January 24, 2024
Jeremy Glenn was interviewed by Law.com for their "How I Made It" column, reflecting on his career and sharing advice for aspiring partners.
December 11, 2023
Jeremy Glenn was quoted in Bloomberg Law discussing a possible overtime update as the US Department of Labor finalizes several regulations before a potential change in leadership.
October 02, 2023
(Chicago, October 2, 2023) … Cozen O’Connor attorney Gary Gassman, co-vice chair of the firm’s Global Insurance Department and co-chair of its Professional Liability Practice Group, has been recognized by Crain’s Chicago Business as one of its 2023 Notable Leaders in Diversity, Equity & Inclusion.
August 31, 2023
On Saturday, October 28th, Loyola University Chicago School of Law will present the 2023 St. Robert Bellarmine Award to Matthew Glavin, a senior principal and member of Cozen O’Connor Public Strategies, at the school’s Reunion and Alumni Awards Dinner.
August 17, 2023
Best Lawyers selected 230 Cozen O’Connor lawyers from 24 of the firm’s U.S. offices for inclusion in the 2024 edition of The Best Lawyers in America.
July 28, 2023
These lists recognize lawyers “mastering,” “leading,” “revolutionizing,” and “dominating” their fields in their respective states and nationwide.
July 25, 2023
Jim Argionis, a member of Cozen O’Connor’s Commercial Litigation practice, has been appointed to serve a 3-year term on the Dean’s Advisory Council (DAC) at Loyola University Chicago’s College of Arts and Sciences.
July 10, 2023
Cozen O'Connor's Aviation (Litigation/Regulation), Construction, L&E, M&A (Midmarket), Shipping (Finance and Litigation/Regulation) practices were ranked by the Legal 500.
July 10, 2023
CHICAGO, July 10, 2023 — Lawdragon has named Chicago attorney Brian Shaw, a member of Cozen O’Connor’s Bankruptcy, Insolvency & Restructuring practice, to its 2023 list of the Top 500 Leading U.S. Bankruptcy and Restructuring Lawyers.
June 29, 2023
CHICAGO – June 29, 2023 - Matthew Glavin, a member in Cozen O’Connor’s Public Strategies Group, has been honored by Loyola University Chicago School of Law with its 2023 St. Robert Bellarmine Award.
May 04, 2023
Matt DiCianni, a labor and employment associate at Cozen O’Connor, has been honored with a Rising Stars Award from the National Immigrant Justice Center (NIJC).
April 21, 2023
Brian Shaw is featured in a University of Illinois article discussing his career path and what he finds most rewarding in his job.
April 12, 2023
Cozen O’Connor attorney Jim Argionis, a member of the firm’s Commercial Litigation practice in Chicago, has been reappointed by Illinois Governor JB Pritzker as Chairman of the Illinois Department of Employment Security (IDES) Advisory Board.
March 06, 2023
Melissa A. Siebert and Erin Bolan Hines — data privacy litigators with renowned track records of successfully defending employers and technology enterprises entangled in major data privacy class actions and appellate cases — to its award-winning Commercial Litigation Practice Group.
February 09, 2023
Matthew DiCianni and Amy Doig spoke with Chicago Lawyer Magazine about working with their client's request for asylum.
January 26, 2023
Super Lawyers has named 11 attorneys at Cozen O’Connor to its 2023 lists of top practitioners in Illinois.
January 03, 2023
(CHICAGO, January 2, 2023) - Patrick Martin, Managing Director of Cozen O’Connor Public Strategies, has been elected to the Board of Managers for the YMCA of Metropolitan Chicago.
December 13, 2022
Chicago, December 13, 2022 — Christina Sanfelippo, an associate in Cozen O’Connor’s Bankruptcy, Insolvency & Restructuring Practice, has been elected chair of the board of directors for the Chicago Network of the International Women’s Insolvency & Restructuring Confederation (IWIRC) for 2023 and 2024. Sanfelippo has also been elected U.S. Programs Committee co-director on IWIRC’s international board of directors for 2023.
December 12, 2022
Three Cozen O’Connor attorneys have been recognized as 2022 Notable Gen X Leaders in Law by Crain’s Chicago Business for their success and accomplishments in their leadership roles within the firm and across the legal community.
November 18, 2022
Cozen O'Connor associates Matt DiCianni and Amy Doig recently won a significant pro bono victory in Immigration Court in Chicago.
September 29, 2022
Matthew Glavin, a member in Cozen O’Connor’s Public Strategies Group, has been named to the Board of Youth Guidance, a Chicago-based organization specializing in social-emotional learning, counseling, and educational support for students in Chicago-area schools.
September 12, 2022
Gary L. Gassman wrote the article "Why Do I Share My Journey of Personal Acceptance? Because It Leads to Positive Change" for the September issue of the Claims and Litigation Management Alliance's magazine.
September 08, 2022
Anna Wermuth, vice-chair of Cozen O’Connor’s national Labor & Employment Department, has been named to the 2022 list of Chicago’s “Notable Women in Law” by Crain’s Chicago Business.
August 24, 2022
Lawdragon has named six members of Cozen O’Connor’s Labor & Employment Department to its 2022 list of the Top 500 Leading U.S. Corporate Employment Lawyers.
August 22, 2022
Geoffrey Ferrer, James Forsyth, J. Bruce Maffeo, Suzanne Mayes, Jason Shargel, and Anna Wermuth received the highest annual ratings from their peers.
August 22, 2022
210 Cozen O’Connor lawyers from 24 of the firm’s nationwide offices for inclusion in the 2023 edition of The Best Lawyers in America.
August 09, 2022
Petrina is the 16th attorney to join Cozen O’Connor’s Global Insurance Department in 2022, which has grown to over 100 lawyers nationwide.
August 05, 2022
Gary Gassman and Josephine Bahn, have been installed in ABA Chair Roles.
April 21, 2022
CHICAGO, April 21, 2022 — The American College of Bankruptcy (ACB) has named to its Board of Regents Chicago attorney Brian Shaw, a member of Cozen O’Connor’s Bankruptcy, Insolvency & Restructuring practice.
April 13, 2022
Cozen O’Connor attorney Jim Argionis, a member of the firm’s Commercial Litigation practice in Chicago, has been named the 2022 recipient of the Sgt. Karen Lader Memorial Good Citizen Award.
January 31, 2022
Lawdragon has named Brian Shaw and Thomas Horan, members of Cozen O’Connor’s Bankruptcy, Insolvency & Restructuring practice, to its 2022 list of the Top 500 Leading U.S. Bankruptcy and Restructuring Lawyers.
January 28, 2022
Nine were recognized as Super Lawyers and two were named to its list of "Rising Stars," a list that recognizes attorneys under the age of 40.
November 29, 2021
Three Cozen O’Connor attorneys have been recognized as 2021 Chicago Notable Gen X Leaders in Law by Crain’s Chicago Business for their success and accomplishments in their leadership roles within the firm and across the legal community.
November 19, 2021
Lawdragon has named six members of Cozen O’Connor’s Labor & Employment Department to its 2021 list of the Top 500 Leading U.S. Corporate Employment Lawyers.
July 09, 2021
Anna Wermuth, vice-chair of Cozen O’Connor’s national Labor & Employment Department, has been named to the second annual Salute! Women in Law Award list by the Chicago Daily Law Bulletin and Chicago Lawyer magazine.
February 18, 2021
Chambers Global has recognized four Cozen O’ Connor attorneys, Susan Eisenberg (Miami – Labor & Employment), Geoffrey Ferrer (New York – Transportation & Trade), Thomas Giotto (Pittsburgh – Labor and Employment) and Joseph Tilson (Chicago – Labor & Employment), as worldwide leaders in their respective practices. All four attorneys are also ranked in the Chambers USA Guide.
January 29, 2021
Super Lawyers has named eleven attorneys at Cozen O’Connor to its 2021 lists of top practitioners in Illinois.
January 26, 2021
The Leading Lawyers Network has named 24 Cozen O’Connor lawyers to its annual list of Illinois’ top practitioners and named two others as Emerging Lawyers in its 2021 survey results.
December 11, 2020
Cozen O’Connor is pleased to announce that Patrick Martin, principal and director of the firm’s Public Strategies group in the Midwest, has been named to The Hill’s Top Lobbyists: Hired Guns list.
September 01, 2020
Hires Expand Offerings in Chicago and Add Depth to the firm’s Corporate Bankruptcy Practice
August 20, 2020
Chicago attorney Gary Gassman, co-chair of Cozen O’Connor’s Professional Liability Coverage Practice, has been elected chair-elect of the American Bar Association Tort Trial & Insurance Practice Section (TIPS), one of the ABA’s largest sections.
August 20, 2020
Cozen O’Connor is proud to announce that nine of the firm’s lawyers have been recognized as “Lawyers of the Year” in their respective practices by Best Lawyers in America.
July 28, 2020
Jeff Greenspan, a member of Cozen O’Connor’s Litigation Department in Chicago, has been named to the board of directors of the Center for Enriched Living (CEL), a nonprofit organization serving teens and adults with intellectual and developmental disabilities.
Click here for a navigable map
We are located in the North Loop of downtown Chicago. Our offices are at 123 N. Wacker Drive on Wacker Drive on the southeast corner of Wacker Drive and Randolph Street. Main reception is located on the 18th floor. We are readily accessible by air, train, bus, subway or car.
Air
Chicago is serviced by two major airports – O’Hare International Airport and Midway Airport. Taxi, bus and train are available from both airports. The Orange Line services Midway Airport. The Blue Line services O’Hare International Airport.
Driving From O'Hare International Airport:
Head southeast on I-190 W. Take exit toward Bessie Coleman Drive. Use the right two lanes to turn right onto Bessie Coleman Drive. Use the right lanes to take the Interstate 190 ramp to Interstate 90/Chicago/Interstate 294. Merge onto I-190E. Use any lane to take exit 1B for S. River Road. Merge onto I-90 E (Kennedy Expressway). Take exit 51C toward East Washington Blvd/100 N. Turn Left onto West Washington. Turn left onto North Wacker Drive. Destination will be on the right.
Driving From Midway International Airport:
Go East on W. Airport Drive towards S. Cicero Avenue/IL-50. Turn left onto S. Cicero Avenue/IL-50. Take the I-55 North ramp. Merge onto I-55 North/Stevenson Expy via the ramp to Chicago. Take exit 292A to merge onto I-90 W/I-94 W toward W Ryan Expy/Wisconsin. Keep left to stay on I-90 W/I-94 W. Take exit 51C for Washington Boulevard E. Turn right onto Washington Blvd. Turn left onto N. Upper Wacker Drive. Destination will be on the right.
Train
We are close to the two principal commuter train stations – Ogilvie Transportation Center and Union Station which also services Amtrak. There are two other train stations – LaSalle Street Station and Van Buren Street Station servicing the Electric Line and the South Shore Line.
Ogilvie Transportation Center is serviced by the Union Pacific North Line, Northwest Line and West Line. From Ogilvie Transportation Center, which is located at Madison and Canal Streets, walk north on Canal Street. Turn right on Randolph Street. Cross over the Chicago River and Wacker Drive. Our building is on Wacker Drive at the southeast corner of Randolph Street and Wacker Drive.
Union Train Station is serviced by North Central Service, Milwaukee District North Line, Milwaukee District West Line, Burlington Northern Santa Fe Line, Heritage Corridor Line and the Southwest Line. From Union Station, which is located at Canal Street between Jackson and Adams Streets, walk east on Adams Street. Turn left on Wacker Drive. Cross over Washington Street. Walk almost one block north to Randolph Street. Our building is on Wacker Drive at the southeast corner of Randolph Street and Wacker Drive.
Bus
There are several bus routes that come pass the building. Please visit www.transitchicago.com to determine which bus route to take to the building.
Subway
We are close to several subway and/or elevated train lines. The Orange, Brown, Red and Blue Lines have stops at various places within one mile of our building.
The Orange Line services Midway Airport. The Blue Line services O’Hare International Airport.
The Blue Line stops at Clark/Lake. Walk west on Lake Street three blocks to Franklin Street. Turn left on Franklin Street. Walk one block to Randolph Street. Turn right onto Randolph Street. Our building is on the southeast corner of Wacker Drive and Randolph Street.
The Orange Line stops at Clark/Lake. Walk west on Lake Street three blocks to Franklin Street. Turn left on Franklin Street. Walk one block to Randolph Street. Turn right onto Randolph Street. Our building is on the southeast corner of Wacker Drive and Randolph Street.
The Brown Line stops at either the Merchandise Mart or Washington/Wells. From the Merchandise Mart, exit on Franklin Street and walk over the Chicago River to cross over Wacker Drive. Walk south on Wacker Drive. Cross over Randolph Street. Our building is on the southeast corner of Wacker Drive and Randolph Street. From Washington/Wells, walk west on Washington Street. Turn left onto Wacker Drive and walk one half block. Our building is on the southeast corner of Wacker Drive and Randolph Street.
The Red Line stops at Lake Street. Walk west on Lake Street for five blocks to Franklin Street. Turn left on Franklin Street. Walk one block to Randolph Street. Turn right onto Randolph Street. Our building is on the southeast corner of Wacker Drive and Randolph Street.
Car
Driving from the North:
Take I-94 S to Indiana (toll road). Merge onto I-94 E (partial toll road). Take exit 51C toward E Washington Blvd/100 N. Turn left at W. Washington Blvd. Turn left at N. Wacker Drive. Building will be on the right.
Driving from the South:
Take I-90 W/I-94 W toward Chicago. Keep left to stay on I-90 W/ I-94 W (partial toll road). Take exit 51C for Washington Boulevard E. Turn right onto W. Washington Blvd. Turn left onto N. Upper Wacker Drive. Building will be on the right.
Driving from the West:
Take the Eisenhower Expressway East (I-290 - E). Take the I-90 E/I-94 W exit toward Wisconsin. Merge onto I-90 W/I-94 W. Take exit 51C for Washington Boulevard E. Turn right at onto W. Washington Blvd. Turn left onto N. Upper Wacker Drive. Building will be on the right.
Parking
There are several parking lots within walking distance of our office.
Franklin/Lake Self Park, 180 N. Franklin Street, Chicago IL
215 West Lake Street Valet Garage, Chicago, IL
200 West Randolph Self Park Garage, Chicago, IL
Hotels
There are many fine hotels in the city of Chicago. The ones most convenient to our office are:
Westin Chicago River North
320 North Dearborn Street
Chicago, IL 60654
(312) 744-1900
Hotel Allegro
171 West Randolph Street
Chicago, IL 60601
(312) 236-0123
Renaissance Hotel
1 West Wacker Drive
Chicago, IL 60601
(312) 372-7200
General Transportation Telephone Numbers and Websites
Amtrak 800-872-7245
Chicago Transit Authority (CTA – elevated/subway trains and buses) 888-968-7282
Metra Commuter Trains 312-322-6777
RTA Travel (CTA trains and buses, Metra Commuter Trains) 312-913-3200
O'Hare International Airport 800-832-6352
Midway International Airport 773-838-0600
South Shore 219-926-5744