John P. Ratnaswamy

Energy Law

3.0 (1 reviews)

Chicago, Illinois

40+ years experience

The Law Office of John Ratnaswamy

Updated: Jan 03, 2026

Contact Information

312-646-2524

https://www.law-energy.com

10 S. Riverside Plaza, Suite 875, Chicago, IL 60606

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Bio

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. 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.

Practice Areas

Energy Law

Awards & Recognition

Lawyer of the Year: Energy Law, Chicago (2014)
Recognized: Energy Law
Practice Area: Administrative / Regulatory Law
Practice Area: Communications Law
Practice Area: Energy Regulatory Law
Practice Area: Environmental Law
Practice Area: Ethics and Professional Responsibility Law
Practice Area: Utilities Law
Special Focus: Litigation

Recognized in Best Lawyers since 2010

Education

Northwestern University, J.D., cum laude, graduated 1985
Northwestern University, B.S., Communication Studies, graduated 1982
Northwestern University, M.A., Communication Studies, graduated 1982

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Reviews

Kimberly Campbell

2 weeks ago

A solid, experienced attorney with some communication delays

I engaged John Ratnaswamy to assist with a complex regulatory compliance issue for my small energy services company. His deep expertise in energy law, honed over 40 years and recognized by his 'Lawyer of the Year' award, was immediately apparent. His analysis of the administrative regulations was thorough, and his background from founding his own firm after a partnership at a national boutique gave me confidence in his strategic understanding. The legal work product itself was competent and resolved our immediate regulatory filing. However, the experience was marked by occasional, significant delays in communication. Responses to emails could take several days, and there were times I felt I had to follow up multiple times to get updates on straightforward questions. While his rates are fair for his experience level, the value felt diminished by the wait times and the need for me to manage the communication flow. For highly complex matters where his specific regulatory knowledge is paramount, he is a capable choice, but be prepared to proactively manage expectations around responsiveness.