ONICON Inc., the Clearwater, Fla.-based designer and manufacturer of energy-measurement systems and flow-metering devices, recently was acquired by Harbour Group, a privately owned operating company based in St. Louis. Terms of the transaction were not disclosed.

Harbour Group and its companies are engaged in manufacturing, distribution, and specialty services in dozens of industries.

“I am extremely confident that partnering with Harbour Group and benefitting from their global resources will enable us to fortify our leading position in the HVAC market and enhance our position in additional markets,” Marvin Feldman, ONICON’s president, said.

Jeff Fox, Harbour Group’s chairman and chief executive officer, said, “We look forward to working with the ONICON team and will be supporting their organic and acquisition-related growth efforts with all of Harbour Group’s resources.”