| Company | Category | Area | Address | Web | Contact person | |
| PROTON ELECTRIC & SECURITIES | Burglar Alarm Systems (Wholesa | New York | 801 51ST ST, BROOKLYN, Kings, New York, 11220-2929, USA | - | - | - |
| PROTON ELECTRIC CORP | Electrical Contractor | Illinois | 1538 HOMESTEAD RD, LA GRANGE PK, Cook, Illinois, 60526-1109, USA | - | - | Antonio Contreras |
| PROTON ELECTRIC LLC | Electrical Work | Florida | 510 WHITNEY AVE, LANTANA, Palm Beach, Florida, 33462-1638, USA | - | - | - |
| PROTON ENERGY | Oil & Gas Producers | Louisiana | 7110 COACH RD, GUEYDAN, Vermilion, Louisiana, 70542-4900, USA | - | - | - |
| PROTON ENGINEERING | Security Systems Sv | Florida | 5027 SW MOORE ST, PALM CITY, Martin, Florida, 34990-5220, USA | - | - | JASON NICKELS |
| PROTON ENGINEERING | Security Systs-Communications/ | Florida | PO BOX 1852, PALM CITY, Martin, Florida, 34991-6852, USA | www.proton-eng.com | - | Jason Nickels |
| PROTON GLOBAL MEDIA GROUP INC | Motion Picture/video Productio | Florida | PO BOX 2574, OCALA, Marion, Florida, 34478-2574, USA | - | - | Richard Perinchies |
| PROTON INTERNATIONAL | Printers | California | 835 MERIDIAN ST, DUARTE, Los Angeles, California, 91010-3587, USA | - | - | Larry Chang |
| PROTON LABORATORIES INC | Import Water Filtration System | California | 1150 MARINA VILLAGE PKWY, ALAMEDA, Alameda, California, 94501-6458, USA | - | - | Ed Alexander |
| PROTON LABORATORIES INC | Water Purification Eq | California | 980 ATLANTIC AVE STE 110, ALAMEDA, Alameda, California, 94501-1098, USA | - | - | EDWARD E ALEXANDER |
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