Where is NiSource Corporate office Headquarters

NiSource Headquarters Address and Contact

  • Address: 801 E 86th Ave, Merrillville, IN 46410, USA
  • Phone Number: +1 219-647-5990
  • Fax Number: N/A
  • Email:
  • Number of Employees: 8175
  • Established: 1912
  • Founder:
  • Key People: Joseph J. Hamrock

NiSource Headquarters Location & Directions

NiSource Headquarters Executive Team



Joe Hamrock

President and Chief Executive Officer

Donald Brown

Executive Vice President and Chief Financial Officer

Mike Finissi

Executive Vice President, Safety and Gas Technical Services

Carrie Hightman

Executive Vice President and Chief Legal Officer

Violet Sistovaris

Executive Vice President and President, NIPSCO

Pablo Vegas

Executive Vice President and President, Gas Utilities

Pete Disser

Vice President, Internal Audit

Suzanne Surface

Chief Services Officer

John Nassos

Vice President and Corporate Secretary

Randy Hulen

Vice President, Investor Relations and Treasurer

About NiSource, History and Headquarters Information

NiSource Headquarters Photos

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