(815) 722-2431

Oestreich Sales and Service is commited to providing the very highest quality products to our customers.

There is a saying ....

"The bitterness of poor quality remains long after the sweetness of low price is forgotten."

This remains our focus today, providing the highest quality to our customers.

List of Manufacturers

A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

A-1 Security	ABH	Abus Lock Company	Adams Rite Manufacturing Company	Aiphone Communication Systems
Alarm Lock Systems, Inc.	Altronix	American Lock	AMSEC	Arrow Lock Manufacturing Company
Assa High Security Locks	ASP, Inc. (Auto Security Products)	Bargman	Bauer Products	Belwith
Bommer	Buddy Products	Business Security	Camden	Cansec
CCL Security Products	Clinton Electronics	Codelocks	Coleman Cable	Command Access Technologies
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CompX Chicago (formely Chicago Lock Company)	CompX Fort (formerly Fort Lock Corporation)	CompX National (formerly National Cabinet Lock)	CompX Timerline (Formerly Timberline)	Cooper Tools
Corbin Russwin Inc.	Detex Corporation	Digi Enterprise	Dolphin Components	Domino Engineering Corp
Don Jo Mfg Inc.	Dorma Architectual Hardware	Dor-O-Matic	Elk Products, Inc.	ESP
Essex Corporation	Exit Security Inc.	Falcon Lock	Folger Adam	Frank J. Martin
Gardall Safe Corporation	GE Industry	GKL Products	Glynn-Johnson	GMS
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Hager Companies	HES	Hickok Incorporated	HID Corporation	HPC Inc.
International Electronics Inc. (IEI)	Ilco (Now Kaba Ilco)	Intellikey Corporation	International Door Closers	Ionit Technologies
Ives	Jackson Corporation	Jet Hardware Manufacturing Corporation	Kaba Mas Corporation	Kaba Peaks Global
Kaba Simplex (formerly Unican)	Keedex Inc.	Keri Systems	Key Control Specialists (KCS)	KSP (Killeen Security Products)
Kwikset Corporation	LAB Pins	Latch Gard	LCN	Linear Corporation
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Lockcraft (formerly All Lock)	Locknetics (Now Schalge)	LSDA	Lucky Line Products Inc.	MAG Engineering & Mfg. Inc.
Major Manufacturing Company	Markar Architectural Products	Marks Hardware	Marray Enterprise Inc.	Master Lock Company
McKinney	Mil-Comm	Miwa Now Key Control Specialists	Monarch Hardware	Mul-T-Lock
Norton	Olympus Lock	Optex	OSI Security Devices	PDQ Manufacturing
Pemko	Perma-Vault Safe Co.	Precision Hardware (PHI)	Pro-Lok	Recognition Systems
Rockwood Mfg.	Rutherford Controls	Rixson	Rofu International Corporation	Roton
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Safety Technology International	Sargent & Greenleaf	Sargent Manufacturing Company	Schlage Lock Company	Secura Key
Securitron	Security Fasteners	Segal	Sieveking Products	Strattec Security Corporation
Supra (now GE-Supra)	Telkee Systems	The Thompson Co.	Trine Access Technology	Van Lock
Von Duprin	Weiser Lock Company	Weslock	Wright Products	Yale Security Group
Young Bros. Stamp Works Inc.