| BUILDING SYSTEMS ENGINEERING, INC. | 
                        H62000 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS ERECTORS, INC. | 
                        H88806 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS EVALUATION, INC. | 
                        P93000087010 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS GROUP, INC. | 
                        G39408 | 
                        NAME HS | 
                    
                    
                        | BUILDING SYSTEMS GROUP, INC. | 
                        G55803 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS GROUP LLC | 
                        L25000409456 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS OF ILLINOIS, INC. | 
                        F10000003013 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS INTERNATIONAL, INC. | 
                        P09000022526 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS INTERNATIONAL, INC. | 
                        P94000048407 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS INTERNATIONAL, INC. | 
                        P97000031978 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS INTERNATIONAL OF ORLANDO, INC. | 
                        P98000066091 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS MANAGEMENT, LLC | 
                        L11000115195 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS MANAGEMENT GROUP, INC. | 
                        P96000089193 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEM SOLUTIONS, LLC | 
                        L23000145273 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS PROPERTIES, INC. | 
                        P17000019104 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS AND SERVICES LLC | 
                        L25000475125 | 
                        Active | 
                    
                    
                        | BUILDING SYSTEMS AND SERVICES, INC. | 
                        P03000042041 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS AND SERVICES, CORP | 
                        P19000047068 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS AND SERVICES INTERAMERICA, INC. | 
                        P05000074951 | 
                        INACT | 
                    
                    
                        | BUILDING SYSTEMS AND  SERVICES INTERAMERICA INC. | 
                        P09000033394 | 
                        INACT |