EXHIBIT 21
Subsidiaries of the Registrant

		Percent
	Business and	Owned by			State of
Subsidiary	Location	Registrant			Incorporation
Grady McCauley Inc.	Digital image and screen printed graphics		100	%	Ohio
	North Canton, OH
LSI Greenlee Lighting Inc.	Landscape lighting		100	%	Delaware
	Dallas, TX
LSI Adapt Inc.	Project management and installation services		100	%	Ohio
	North Canton, OH
*LSI ADL Technology Inc.	Electronic Circuit Boards		100	%	Ohio
	Columbus, OH
LSI Kentucky LLC	Menu board systems; metal fabrication		100	%	Ohio
	Independence, KY
LSI Lightron Inc.	Fluorescent lighting		100	%	Ohio
	New Windsor, NY
LSI Marcole Inc.	[Inactive]		100	%	Tennessee
LSI MidWest Lighting Inc.	Fluorescent lighting		100	%	Kansas
	Kansas City, KS
LSI Retail Graphics LLC	Interior graphics and signs		100	%	Ohio
	Woonsocket, RI
LSI Integrated Graphics LLC	Screen and digital printed materials,		100	%	Ohio
	and illuminated and non-illuminated
	architectural graphics
	Houston, TX
LSI Saco Technologies Inc.	LED lighting and LED video screen		100	%	Quebec, Canada
	manufacturing, research and
	development
	Montreal, Quebec

* This subsidiary was acquired July 22, 2009.