John P. Ratnaswamy
The Law Office of John Ratnaswamy
Chicago, IL
Practicing energy in Chicago since 1985.
- 41+
- Years practicing
- 4
- Bar admissions
Practices in
Are you John P. Ratnaswamy?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
John P. Ratnaswamy is an attorney based in Chicago, ILLINOIS. The practice focuses on Energy. John has over 41 years of legal experience. Currently practicing at The Law Office of John Ratnaswamy.
- Based in
- Chicago, ILLINOIS
- Experience
- over 41 years
- Known for
- Energy
- Handles Energy matters from Chicago, ILLINOIS.
- Over 41 years of practice as a licensed attorney.
- Recognized with Lawyer of the Year — Energy Law (Chicago) (2014).
About John P. Ratnaswamy: John P. Ratnaswamy is an attorney based in Chicago, ILLINOIS. The practice focuses on Energy. John has over 41 years of legal experience. Currently practicing at The Law Office of John Ratnaswamy.
Areas of practice
Practice focus
John P. Ratnaswamy represents clients in Chicago, Illinois across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About John P. Ratnaswamy
John Ratnaswamy founded his own law firm after having served as a co-founder and Partner at a nationally recognized energy boutique law firm. John has spent more than two decades counseling and representing electric and natural gas industry clients, including before utility commissions and on appeal. John has been selected for inclusion in The Best Lawyers in America© from 2010-2024 and was named its 2014 Chicago “Lawyer of the Year” in the field of Energy Law. John also has been recognized in Chambers USA from 2007-2018, the Leading Lawyers Network from 2012-2020, and by Super Lawyers® from 2010-2023 as an Illinois lawyer in the field of energy and natural resources law.*
John also has over 20 years of experience in counseling, teaching, and writing on lawyer professional responsibility and ethics matters. He also is a former member of the Hearing Board of the Illinois Attorney Registration and Disciplinary Commission.
In addition, John served as the American Bar Association Advisor to the Uniform Law Commission’s Drafting Committee on a Tort Law Relating to Drones. John also served as the Vice Chair, and the Editor in Chief of the Newsletter, of the Space Law Committee of the ABA Section of Science and Technology Law.
John is licensed to practice in Illinois, Minnesota, Wisconsin, and Colorado, and numerous federal courts.
*The Illinois Supreme Court does not recognize certifications of specialties in the practice of law and no award or recognition is a requirement to practice law in Illinois.
Credentials
Education
Northwestern University
J.D. · 1985
Northwestern University
B.S. · 1982
Northwestern University
M.A. · 1982
Jurisdictions
Bar admissions
Colorado
2016 · ACTIVE
Wisconsin
2015 · ACTIVE
Minnesota
2006 · ACTIVE
Illinois
1985 · ACTIVE
Recognition
Awards & honors
Lawyer of the Year — Energy Law (Chicago)
2014
Best Lawyers in America — Energy Law
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Administrative / Regulatory Law
2026
Best Lawyers in America — Communications Law
2026
Best Lawyers in America — Energy Regulatory Law
2026
Best Lawyers in America — Environmental Law
2026
Best Lawyers in America — Ethics and Professional Responsibility Law
2026
Best Lawyers in America — Utilities Law
2026
Best Lawyers in America — Special Focus:
2026
Best Lawyers in America — Litigation
2026
Locations
Office locations
The Law Office of John Ratnaswamy
10 S. Riverside Plaza, Suite 875
Chicago, Illinois 60606
Open in Google MapsClient feedback
Client reviews
No reviews yet
Only verified clients who have consulted with John P. Ratnaswamy can leave a review.
Schedule your consultationFrequently asked
Common questions
What areas of law does John P. Ratnaswamy practice?
John P. Ratnaswamy focuses on Energy.
Where is John P. Ratnaswamy located?
John P. Ratnaswamy primarily serves clients in Chicago, Illinois, with an office at 10 S. Riverside Plaza, Suite 875.
How experienced is John P. Ratnaswamy?
John P. Ratnaswamy has 41 years of legal practice, having been licensed since 1985.
Is John P. Ratnaswamy a verified attorney?
John P. Ratnaswamy's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with John P. Ratnaswamy?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 312-646-2524.
More counsel





