Patterson-Kelley serves the commercial heating industry with the most respected products in the field. Customers look to us for expert engineering support. We exceed the needs of the most challenging applications by applying our expertise and unmatched resources to every project.Patterson-Kelley joined the SPX Technologies family in 2019. As a supplier of highly engineered products and technologies, the SPX businesses holds leadership positions in HVAC, detection and measurement, and engineered solutions markets. SPX Technologies is based in Charlotte, North Carolina, with approximately 4,000 employees in 17 countries. SPX Technologies is listed on the New York Stock Exchange under the ticker symbol "SPXC."