HLA Sign Company your full service near by local sign company. Proudly serving all of Louisiana, from Shreveport, Bossier City, Monroe to Alexandria, Leesville, DeRidder, to Lake Charles, Lafayette, Broussard, to Baton Rouge, Denham Springs, to New Orleans and surrounding areas. Sign sales, design, manufacturing, installation, and maintenance. Contact HLA Signs Today About Your Custom Project (318) 295-2035.