About
Lauren Aguilar is an Indianapolis partner who advises clients on state and federal utility regulation, rate cases, and environmental matters. She works with electric, natural gas, water, alternative energy, and wastewater utilities on disputes and regulatory proceedings. She drafts pleadings and testimony, prepares witnesses, and supports trial and settlement strategy. Her practice also includes rate investigations, periodic adjustment proceedings, compliance questions, policy matters, regulation, and deregulation before implementing agencies involved.
Lauren earned her J.D. from Florida State University College of Law in 2011, completing a certificate in environmental and land use law. She received her B.S. in environmental sciences and management from Michigan State University in 2008 and participated in the Charles Drew Science Enrichment Laboratory. Her education supports her work with utility regulation, environmental compliance, agency procedures, technical evidence, and policy questions affecting regulated businesses and public interests directly.
Lauren previously spent four years as a utility analyst with the Indiana Office of Utility Consumer Counselor, serving on case teams and testifying in rate cases. Before that role, she spent four years as a senior environmental manager with the Indiana Department of Environmental Management. She coordinated land, water, and air rules, prepared public notices and fiscal impact documents, and provided policy recommendations addressing the interests of multiple stakeholders involved.
Lauren Aguilar is admitted to practice in Florida and Indiana and serves as an AI Practice Champion, helping advance technology use in legal work. She was named to The National Black Lawyers Top 40 Under 40 list in 2024 and again recognized in 2026. Her regulatory background, agency experience, and understanding of utility proceedings help clients prepare witnesses, evaluate policy concerns, address compliance obligations, and pursue resolutions in complex matters.
Law Office Affiliations
- Partner, Barnes & Thornburg LLP
- Chair and Member, Indiana State Bar Association, Utility Law Section
Licensed State
- Indiana
- Florida
Education
- Florida State University College of Law
Juris Doctor (JD) - Michigan State University
Bachelor of Science (BS)

- Corporate & Incorporation
- Mergers & Acquisitions
- Oil & Gas
- Telecommunications
- Government Finance




