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Law firm in Chicago, IllinoisHeadquarters

Mayer Brown LLP

Headquartered in Chicago, Illinois, Mayer Brown LLP employs 1,190 lawyers across the United States, according to The Law360 400 (2026).

Office
Chicago, Illinois
Practice areas
Litigation, Capital markets, Real estate, Fund formation, Finance
Size
1,190 lawyers in the United StatesFirm-wide count, The Law360 400 (2026)
Headquarters
This office
Traces its history to
1881

Chicago, Illinois

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About the firm

About Mayer Brown LLP

Headquartered in Chicago, Illinois, Mayer Brown LLP employs 1,190 lawyers across the United States, according to The Law360 400 (2026). Its main areas of practice include litigation, capital markets, real estate, fund formation and finance.

It is one of 83 law firms we list in Chicago and one of 397 across Illinois. By U.S. lawyer headcount, it ranks number 6 among the firms we list with an office in Chicago. Chapman and Cutler LLP is listed at nearly the same location.

The firm's website is mayerbrown.com.

Firm profile

Law firm founded in Chicago in 1881 and based at 71 South Wacker, with more than 1,700 lawyers as of 2026 in 22 cities across 10 countries. Its main offices include London, New York City, Chicago and Washington, D.C.

Mayer Brown LLP traces its history to 1881.

Source: en.wikipedia.org

Areas of practice

  • Litigation
  • Capital markets
  • Real estate
  • Fund formation
  • Finance

From the firm's published profile.

Before you hire

Check a Lawyer's License in Illinois

Lawyers who practice in Illinois are licensed by Attorney Registration and Disciplinary Commission of the Supreme Court of Illinois. Before you hire anyone at Mayer Brown LLP, confirm that the lawyer is licensed and in good standing with its Lawyer Search.

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Questions

Mayer Brown LLP: Questions and Answers

Where is Mayer Brown LLP located?
Mayer Brown LLP is in Chicago, Illinois.
How do I contact Mayer Brown LLP?
The firm's website is mayerbrown.com.
What kind of law does Mayer Brown LLP practice?
Litigation, Capital markets, Real estate, Fund formation and Finance. From the firm's published profile.
How many lawyers does Mayer Brown LLP have?
Mayer Brown LLP has 1,190 lawyers in the United States, according to The Law360 400 (2026). That count covers the whole firm, not only its Chicago office.
Where is Mayer Brown LLP headquartered?
Mayer Brown LLP is headquartered in Chicago, Illinois. This office is its headquarters.
When was Mayer Brown LLP founded?
Mayer Brown LLP traces its history to 1881, counting the oldest firm it grew from.
Which law firms are near Mayer Brown LLP?
The closest firms in the directory are Chapman and Cutler LLP (same location), Hinshaw & Culbertson LLP (same location) and Jenner & Block LLP (same location).
How can I check that a lawyer at Mayer Brown LLP is licensed?
Lawyers in Illinois are licensed by Attorney Registration and Disciplinary Commission of the Supreme Court of Illinois. Use its Lawyer Search at iardc.org to confirm a lawyer is licensed and in good standing.

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Listing from © OpenStreetMap contributors, lawyer count from The Law360 400 (2026), last checked October 2026. LawFirmWebAgency is not affiliated with this firm, and a listing is not an endorsement or a measure of quality.

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