Cylinders
- Abloy Canada Inc.
- Acorn Forged Iron
- Adams Rite Manufacturing Co.
- Alarm Lock System Inc.
- Almet Inc.
- American
Lock Co.
- Arrow
Architectural Hardware
- ASSA High Security Locks Sub. Securitas Lock Group Inc.
- Baldwin Hardware Corp. Sub. of Masco Corp.
- Best
Lock Corp.
- Cal-Royal Products
- Computerized Security Systems Sub. of Masco Corp.
- Corbin Russwin Architectural Hardware
- DOM Security Locks
- Eberhard Manufacturing Co. Div. of The Eastern Co.
- EFCO Manufacturing Pty. Ltd. Sub. of Orden Industries
- NT
Falcon Lock
- Hafele America Co.
- HARLOC, Inc.
- ILCO/Unican Inc. Dominion Lock Div.
- International Door Closers Inc.
- Jet Hardware Manufacturing Corp.
- Kaba High Security Locks Sub. of Kaba-Bauer Holdings
- Kwikset Corp. A Black & Decker Co.
- MARKS USA
- Maxfort Corp.
- Medeco Security Locks Inc. Sub. of Hillenbrand Industry
- Norlok Hardware Ltd. Div. Wieser/Masco Building
- Omnia Industries Inc.
- PDQ Industries Inc.
- Period Brass Div. FKI Industries
- H. Pfanstiel Hardware Co. Inc.
- ROTO Hardware Systems Roto Frank of America Inc.
- Sargent Canada Ltd. Sub. of ESSEX Industries Inc.
- Sargent Manufacturing Co. Sub. of ESSEX Industries Inc.
- Schlage
Lock Co. & Schlage
Lock Co.
- Simplex Access Controls Div. of ILCO/Unican
- Sugatsune America Co.
- Trans-Atlantic Co.
- Ultra Hardware Products Inc.
- Valli & Valli (USA) Inc. d.b.a. Valli & Columbo
(USA)
- W & F Manufacturing Inc.
- Weiser Lock
- Weslock Corp.
- Yale-Corbin Canada Ltd.
- Yale
Security Inc.