Rock Energy Systems Appoints Chris Fillmore as New CEO

Rock Energy Systems announced a planned leadership transition as Jeff Townsend retired as CEO, with Chris Fillmore assuming the role effective May 27, 2025. Townsend will remain on the Board in an advisory capacity. Janesville, WI, June 13, 2025 –(PR.com)–...

Happy Veteran’s Day!

Today we honor our veterans. Thank you to those who have served and who are currently serving. We appreciate your sacrifices and bravery. A special thank you to our very own Harold Holmes who served in the Navy and Taylor Dominy who served in the Air...

Rock Energy Systems Acquires EnergyLogic

Rock Energy Systems, LLC, based in Janesville, Wis., has acquired its largest competitor, Nashville, Tenn.-based EnergyLogic LLC, to create the nation’s largest manufacturer and distributor of products in the waste oil space heater market. Rock Energy Systems will...

Rock Energy Systems Graduates 2019 Summer Intern

Rock Energy Systems would like to congratulate Ben Leisher our recent graduate of the 2019 Summer Rock Internship Program. Ben is a rising senior at Beloit Memorial High School and worked in our Engineering department for six weeks this summer as a paid engineering...