Cornerstone Building Brands, Inc. - FORM 10-K - EX-21.1

file	filename
EX-32.2 - EX-32.2 - Cornerstone Building Brands, Inc.	a20201231exhibit32_2.htm
EX-32.1 - EX-32.1 - Cornerstone Building Brands, Inc.	a20201231exhibit32_1.htm
EX-31.2 - EX-31.2 - Cornerstone Building Brands, Inc.	a20201231exhibit31_2.htm
EX-31.1 - EX-31.1 - Cornerstone Building Brands, Inc.	a20201231exhibit31_1.htm
EX-24.1 - EX-24.1 - Cornerstone Building Brands, Inc.	a20201231exhibit24_1.htm
EX-23.2 - EX-23.2 - Cornerstone Building Brands, Inc.	a20201231exhibit23_2.htm
EX-23.1 - EX-23.1 - Cornerstone Building Brands, Inc.	a20201231exhibit23_1.htm
EX-10.35 - EX-10.35 - Cornerstone Building Brands, Inc.	a20201231exhibit10_35.htm
EX-4.13 - EX-4.13 - Cornerstone Building Brands, Inc.	a20201231exhibit4_13.htm
10-K - 10-K - Cornerstone Building Brands, Inc.	cnr-20201231.htm

Exhibit 21.1

Cornerstone Building Brands, Inc.

List of Subsidiaries



Alenco Building Products Management, L.L.C.						Delaware
Alenco Extrusion GA, L.L.C.						Delaware
Alenco Extrusion Management, L.L.C.						Delaware
Alenco Holding Corporation						Delaware
Alenco Interests, L.L.C.						Delaware
Alenco Trans, Inc.						Delaware
Alenco Window GA, L.L.C.						Delaware
Aluminum Scrap Recycle, L.L.C.						Delaware
American Screen Manufacturers, Inc.						Delaware
Atrium Corporation						Delaware
Atrium Extrusion Systems, Inc.						Delaware
Atrium Intermediate Holdings, Inc.						Delaware
Atrium Parent, Inc.						Delaware
Atrium Windows and Doors, Inc.						Delaware
AWC Arizona, Inc.						Delaware
AWC Holding Company						Delaware
Briden Acquisition, LLC						Delaware
Brock Doors & Windows Ltd.						Ontario, Canada
Brockmeyer Acquisition, LLC						Delaware
Building Systems de Mexico, S.A. de C.V.						Mexico
Canyon Acquisition, LLC						Delaware
CENTRIA						Pennsylvania General Partnership
CENTRIA, Inc.						Delaware
CENTRIA Services Group, LLC						Pennsylvania
Champion Window, Inc.						Delaware
Environmental Materials, Inc.						Delaware
Environmental Materials, LLC						Delaware
Environmental Materials L.P.						Delaware
Environmental Stoneworks, LLC						Delaware
Environmental Stucco LLC						Delaware
Foundation Labs by Ply Gem, LLC						Delaware
Gienow Canada Inc.						Alberta, Canada
Glazing Industries Management, L.L.C.						Delaware
Great Lakes Window, Inc.						Ohio
Kleary Masonry, Inc.						California
Kroy Building Products, Inc.						Delaware
Mastic Home Exteriors, Inc.						Ohio
Mitten, Inc.						Ontario, Canada
MW Manufacturers Inc.						Delaware
MWM Holding, Inc.						Delaware
Napco, Inc.						Delaware
NCI Group, Inc.						Nevada


NCI Latin American Services, S.R.L.						Costa Rica
New Alenco Extrusion, Ltd.						Texas
New Alenco Window, Ltd.						Texas
New Glazing Industries, Ltd.						Texas
Ply Gem Holdings, Inc.						Delaware
Ply Gem Industries, Inc.						Delaware
Ply Gem Pacific Windows Corporation						Delaware
Ply Gem Specialty Products, LLC						Delaware
Robertson Building Systems Limited						Ontario, Canada
Robertson-Ceco II Corporation						Delaware
Schuylkill Stone, LLC						Delaware
Silver Line Building Products LLC						Delaware
SimEx, Inc.						West Virginia
Simonton Building Products LLC						Delaware
Simonton Industries, Inc.						California
Simonton Windows & Doors, Inc.						Delaware
Simonton Windows, Inc.						West Virginia
St. Croix Acquisition, LLC						Delaware
Steelbuilding.com, LLC						Delaware
Talus Systems, LLC						Delaware
Thermal Industries, Inc.						Delaware
Van Well Acquisition, LLC						Delaware
Variform, Inc.						Missouri

Cornerstone Building Brands, Inc. - FORM 10-K - EX-21.1 - March 3, 2021