Call it the Kohlberg Variations: Kohlberg & Company specializes in buyouts, recapitalizations, and equity investments of middle market companies (valued between $100 million and $500 million) in industries ranging from machinery and equipment, to food and consumer, to health care. The firm typically invests $50 million to $125 million, and works with the management of its portfolio companies to guide their growth. Kohlberg was founded in 1987 by Jerome Kohlberg Jr., the senior founding partner of KKR (formerly Kohlberg Kravis Roberts), and James A. Kohlberg, but is not affiliated with that company. The firm maintains offices in New York and California.