LARGO, Fla. — ONICON Inc., a Harbour Group company, designer and manufacturer of flow meters and energy measurement systems, has announced the acquisition of Greyline Instruments Inc. Terms of the transaction were not disclosed.

Greyline designs and manufactures ultrasonic flow meters and level sensors that utilize Doppler, transit time, and area velocity technologies. The company’s customers operate primarily in the water, wastewater, environmental, and industrial markets. Greyline was founded by Bill Robson and Ernie Higginson, and is based in Long Sault, Ontario, with additional operations in Massena, New York.

“Greyline and ONICON are perfectly complementary,” said John Norris, president of ONICON. “Greyline represents exactly the type of people, products, and technology we are seeking to add to our company. We are very excited to welcome the Greyline team and look forward to delivering exceptional new products and services for our customers.”

“Bill’s technical expertise and Ernie’s intense customer orientation coalesced to create a very exciting company that fits extremely well with our long-term vision for ONICON,” said Jeff Fox, Harbour Group’s chairman and chief executive officer. “We’re glad that they are staying onboard to help the combined companies accelerate their growth. The opportunity to support strong, founder-owned companies like Greyline and ONICON is a core mission of Harbour Group.”

Robson, president of Greyline, added, “This is a wonderful opportunity for our employees and customers. Combining our technology with ONICON’s scale and reach is certainly a win-win situation. We’re eager to see what we can achieve as part of the ONICON and Harbour Group family.”

ONICON has been in the flow measurement and hydronic energy business since 1987. The company provides a wide range of products including turbine, vortex, electromagnetic, thermal mass, and ultrasonic meters as well as Btu meters and display modules. For more information, visit

Harbour Group’s companies are engaged in manufacturing and distribution in multiple industries, including flow and energy measurement, boiler systems, HVACR tools and instruments, and more. Since its founding in 1976, Harbour Group has acquired 178 companies in 37 different industries. For more information, visit

Publication date: 1/12/2015

Want more HVAC industry news and information? Join The NEWS on Facebook, Twitter, and LinkedIn today!