Top 100 Manufacturers of 2014: $50 Million to $100 Million

AMSCO Windows*


Product lines: Vinyl and composite windows and doors
Headquarters: Salt Lake City
Employees: 300
General information: Founded as Aluminum Manufacturing and Supply Co., Amsco Windows celebrates its 65th anniversary this year. The manufacturer operates out of a 500,000-square-foot plant in Salt Lake City. In recent years, it has expanded its dealer base beyond the Intermountain West.

Cascade Windows*


Product lines: Vinyl windows and patio doors
Headquarters: Spokane Valley, Wash.
Manufacturing locations: Three facilities in Washington, Oregon and Utah
Employees: 250
General information: Cascade Windows is owned by Altamont Capital Partners, a private equity firm based in Palo Alto, Calif. Cascade’s network of dealers and distributors covers the Western United States, including Alaska and Hawaii. The manufacturer also distributes product internationally to western Canada, Australia, South Korea and parts of South America.

Croft LLC*


Product lines: Aluminum and vinyl windows and doors
Headquarters: McComb, Miss.
Employees: 500
General information: Supplying distributors, lumberyards and home improvement stores throughout the continental United States, Croft operates a 600,000-square-foot manufacturing plant in Mississippi.


Crystal Window & Door Systems Inc.

Product lines: Residential vinyl windows and sliding patio doors; commercial aluminum windows, patio doors and architectural fenestration systems

Crystal’s headquarters and main production facility in Queens, N.Y. 

Headquarters: Flushing, N.Y.
Manufacturing locations: New York City; Chicago; Riverside, Calif.
Employees: 405
General information: Crystal Window & Door Systems operates a 215,000-square-foot headquarters and manufacturing facility in New York City; Crystal affiliate firms manufacture windows at an 80,000-square-foot plant in Chicago and a 117,000-square-foot facility in Riverside, Calif. The manufacturer also has a number of building product and service subsidiaries including Helios Energy Systems, which is focused on solar photovoltaic electric power.

Custom Window Systems Inc.


Product lines: Impact and non-impact vinyl windows and doors
Headquarters: Ocala, Fla.
Employees: 290
General information: CWS is owned by Dallas-based private equity firm, Highlander Partners L.P. The company manufactures impact-resistant and non-impact windows and doors, as well as porch enclosure products, at its 250,000-square-foot facility in Ocala, Fla. CWS primarily serves the replacement and remodeling markets in Florida, and other coastal markets in the Southeastern United States.

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