- 
                        
                            ACCU-SCOPE  
- 
                        
                            American Optical  
- 
                        
                            Antique  
- 
                        
                            Ash Technologies  
- 
                        
                            Bausch & Lomb  
- 
                        
                            Beck Kassel  
- 
                        
                            Bristol Microscope  
- 
                        
                            Cargille  
- 
                        
                            Carl Zeiss  
- 
                        
                            Carson  
- 
                        
                            CNA Scientific  
- 
                        
                            Dolan-Jenner  
- 
                        
                            Dover Publications  
- 
                        
                            EDC Publishing  
- 
                        
                            Ernst Leitz Wetzlar  
- 
                        
                            Euromex  
- 
                        
                            Firefly  
- 
                        
                            Frey Scientific  
- 
                        
                            Hausser Scientific  
- 
                        
                            Hitachi  
- 
                        
                            ioLight  
- 
                        
                            Jenco  
- 
                        
                            Ken-a-vision  
- 
                        
                            LABOMED  
- 
                        
                            Leica Microsystems  
- 
                        
                            Lumenera Cameras  
- 
                        
                            LW Scientific  
- 
                        
                            LX Microscopes by UNITRON  
- 
                        
                            Meiji Techno  
- 
                        
                            Mitutoyo  
- 
                        
                            Modulus Data Systems  
- 
                        
                            Monolux  
- 
                        
                            Motic  
- 
                        
                            Nikon  
- 
                        
                            Olympus  
- 
                        
                            OPTIKA  
- 
                        
                            Pelican  
- 
                        
                            Propper  
- 
                        
                            Reichert  
- 
                        
                            Scienscope  
- 
                        
                            Sefi Medical Instruments (Makler)  
- 
                        
                            Seiler Instrument  
- 
                        
                            Steindorff  
- 
                        
                            Steindorff by SCHULTZ  
- 
                        
                            Swift Optical  
- 
                        
                            TechniQuip  
- 
                        
                            UNITRON  
- 
                        
                            Vicker Instruments  
- 
                        
                            Vision Engineering  
