The Chicago office is Jenner & Block’s first and largest office — the birthplace and center from which the firm has built its reputation and culture. The firm first opened its doors in 1914 as Newman, Poppenhusen & Stern, a three-person firm located in downtown Chicago in a building that was erected soon after the Great Chicago Fire of 1871. Today, Jenner & Block is one of the largest law firms in Chicago.  Approximately 330 of the firm’s lawyers are based in the firm’s 1.1-million-square-foot office at 353 N. Clark, in a Class A, LEED-certified office tower.

Lawyers in our Chicago office are involved in high-profile litigation and substantial transactions. The Chicago office made headlines in the latter part of the 2000s when the firm represented the examiner in the Lehman Brothers Holdings bankruptcy and General Motors in its blockbuster IPO. We handle high-stakes, mission-critical litigation for Fortune 100 companies and other large organizations, delivering unmatched strength in all areas of dispute resolution. Chambers USA has ranked 14 of our Chicago-based practices as among the best in the United States. The American Lawyer, The National Law Journal, The Wall Street Journal, Financial Times and Crain’s Chicago Business have also recognized our practices and partners. In 2021 and 2022Law360 named the firm an "Illinois Powerhouse." Jenner & Block’s steadfast commitment to pro bono and public service began in Chicago. Today, our Chicago lawyers are among the city’s most dedicated providers of pro bono legal services. They also serve as leaders in the organized bar (Chicago Bar Association) and in a wide array of other professional, civic and charitable organizations, including the Chicago Symphony Orchestra, the Commercial Club of Chicago, Chicago Botanic Garden, and the Art Institute of Chicago, to name just a few.

Our Chicago office attracts notable lateral partners across a host of distinguished practice disciplines, from corporate transactions and white collar to patent to appellate litigation. Many of these partners come from high-ranking government positions or have led practices at other firms.  We also attract high-quality associates, many of whom were editors of their law school journals and have clerked for federal and state trial and appellate judges across the country.  Because so many of our national practices are headquartered in our Chicago office, associates have extensive opportunities to gain experience in different areas and participate in challenging cases and deals.

Though it is our largest office, Chicago’s atmosphere is collegial and teamwork-focused, with a high degree of internal cooperation among the various practices.  Further, the firm is committed to a “one-firm” approach throughout all six offices; lawyers work collaboratively on myriad matters. This approach is an integral part of our culture and a cornerstone of our success in all of our offices today.


353 N. Clark Street
Chicago, IL 60654-3456
Phone: 312 222-9350
Fax: 312 527-0484