USAThe Grieve Corporation

The Grieve Corporation is an American manufacturer of industrial ovens and furnaces, founded in 1949 as a small job shop in Chicago. The company now occupies a 100,000‑square‑foot facility in Round Lake, Illinois. Grieve designs and manufactures ovens and furnaces for heat treating processes including drying, baking, curing, preheating, tempering, sintering, stress relieving, annealing, sterilization, and depyrogenation. Products are used in aerospace, defense, automotive, electronics, pharmaceutical, mining, and research laboratory applications. Grieve builds ovens with 18‑gauge stainless steel and Incoloy alloy elements designed for 25–40+ years of daily use. The company offers both standard and custom‑built thermal processing solutions.