Since our founding in 1982, The Sterling Group has owned a wide variety of companies. Each one has contributed to our depth of experience. (Date is year of investment.)
Stackpole International (2011)
A manufacturer and sole source supplier of highly-engineered oil pumps and powdered metal components to automotive original equipment manufacturers.
Velcon Filters, LLC (Velcon) (2009)
A niche manufacturer of fluid filtration systems for a variety of domestic and international end markets, including jet fuel.
Roofing Supply Group (RSG) (2006)
One of the largest wholesale distributors of roofing supplies and related materials in the United States.
BTEC Turbines (2006)
Provider of services and equipment to the power industry.
Hudson Products (2006)
Global manufacturer of air cooled heat exchangers and axial flow fans.
Panolam Industries (2005)
Manufacturer of decorative laminate panels for residential / commercial indoor surfacing applications.
Producer of carpet backing, geosynthetic, concrete, furnishing, and industrial fabrics and fibers.
North American Energy Partners (NAEP) (2003)
NAEP is the leading provider of site preparation, mining and other services in the Alberta Oil Sands and Western Canada.
HydroChem Industrial Services (2003)
Provider of industrial cleaning services to a variety of process industries
Manufacturer of paper and plastic packaging
Manufacturer and distributor of niche construction tools, formed wire products, and industrial equipment
Sterling Chemicals (1996/1986)
Producer of commodity petrochemicals and paper chemicals
Sterling Diagnostic Imaging (1996)
Global supplier of products and services for the capture, communication, display, and archiving of diagnostic images
Texas Petrochemical (1996)
Producer of petrochemicals including butadiene, butene-1, and MTBE
Manufacturer of specialized conventional envelopes and related packaging products
Purina Mills (1993)
Manufacturer and marketer of animal nutrition products for cattle, hogs, horses, and zoo animals
Marketer of fertilizer materials, micronutrients, animal feeds, and other farm supplies to farmers and related entities
Arcadian Chemical (1989/1984)
Producer of nitrogen and phosphate agricultural fertilizers and industrial chemical products
Craftworld International (1989)
Wholesale distributor of craft supplies
Manufacturer and marketer of high-school rings and other personalized jewelry
Fiber Industries (1988)
Manufacturer and marketer of polyester textile fiber products and bottle resins
INDSPEC Chemical (1988)
Producer of resorcinol, a chemical used in the production of automotive tires, and other industrial chemicals
Manufacturer of overhead cranes
Cain Chemical (1987)
Producer of ethylene and ethylene derivatives
Manufacturer and distributor of branded swimwear and lightweight leisurewear
Residential and light industrial heating and air-conditioning contractor
Knox Lumber (1986)
Distributor and retailer of lumber, hardware, and related building materials
A-1 Rental Car (1985)
Rental car franchise
Hawkeye Chemical (1985)
Producer of nitrogen fertilizer and other related products
Steffen Dairy (1985)
Processor of dairy foods
Pawnee Industries (1984)
Manufacturer of custom-extruded plastic sheet materials
Vista Chemical (1984)
Producer of commodity and specialty petrochemicals, including surfactants and PVC resins
Balco International (1983)
Manufacturer of specialty architectural products