| OSOld Stage Printing | Surgoinsville | TN | — | ◇ UNVERIFIED |
| OPOlson Printing INC | Nashville | TN | — | ◇ UNVERIFIED |
| OPOlympak Printing & Packaging | Grand Rapids | MN | — | ◇ UNVERIFIED |
| OSOlympic Screen Crafts & Lithography | Fremont | CA | — | ◇ UNVERIFIED |
| OGOlympus Group Orlando CO | Orlando | FL | — | ◇ UNVERIFIED |
| OFOme9a Franchises LLC | Ontario | OH | — | ◇ UNVERIFIED |
| OPOmega Printing | Palo Alto | CA | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC. | Monroe | NC | — | ◇ UNVERIFIED |
| ODOn Demand 3d Technology, INC. | Tustin | CA | — | ◇ UNVERIFIED |
| OAOne Accord Corporation Dba Postageone | Valencia | CA | — | ◇ UNVERIFIED |
| OPOneida Printing (former) | Green Bay | WI | — | ◇ UNVERIFIED |
| ODOneil Data Systems INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| OPOneil Printing | Phoenix | AZ | — | ◇ UNVERIFIED |
| OSOne Source Printing and Graphics, INC. | Houston | TX | — | ◇ UNVERIFIED |
| OPOnesource Print Management Inc. | Lake Geneva | WI | — | ◇ UNVERIFIED |
| OSOne Stop Printing & Binding | Winnetka | CA | — | ◇ UNVERIFIED |
 Onetouchpoint Midwest CORP. | Green Bay | WI | — | ◇ UNVERIFIED |
| OTOne, Two, Three, INC. | Woodbury | NJ | — | ◇ UNVERIFIED |
| OLOn Line Graphics and Finishing | Orange | CA | — | ◇ UNVERIFIED |
| OLOn Line Graphics INC | Anaheim | CA | — | ◇ UNVERIFIED |
| OTOn Target Printing and Graphics LLC | Fairfield | NJ | — | ◇ UNVERIFIED |
| OSOn-time Screen Printing & Embroidery, LLC | Derby | CT | — | ◇ UNVERIFIED |
| OHOpacity Holdings LLC | New York | NY | — | ◇ UNVERIFIED |
 Opsec Security/lancaster | Lancaster | PA | — | ◇ UNVERIFIED |
| OBOptimum Bindery Services of New England, INC. | Nashua | NH | — | ◇ UNVERIFIED |
| OCOrange Circle Studio CORP. | Oceanside | CA | — | ◇ UNVERIFIED |
| OCOrange County Register Communications | Anaheim | CA | — | ◇ UNVERIFIED |
| OMOrb Media & Display Service | South Gate | CA | — | ◇ UNVERIFIED |
| OPOrca Printing | Memphis | TN | — | ◇ UNVERIFIED |
| OIOrkiStrate, Inc. | Allentown | PA | — | ◇ UNVERIFIED |
| OBormond beach printing llc | Ormond Beach | FL | — | ◇ UNVERIFIED |
| OVOrora Visual LLC | Niles | IL | — | ◇ UNVERIFIED |
| OVOrora Visual LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| OMO'Rourke Media Group LLC | Seaford | DE | — | ◇ UNVERIFIED |
| OAOrtiz Arts & Graphic Design LLC | Cleveland | OH | — | ◇ UNVERIFIED |
| OAOstrowski Associates | San Jose | CA | — | ◇ UNVERIFIED |
| OSOtto Screen Printing INC Tacoma | Tacoma | WA | — | ◇ UNVERIFIED |
| OROuter Rim Designs, LLC | Key Largo | FL | — | ◇ UNVERIFIED |
| OEOutside Edge, LLC. | Granville | OH | — | ◇ UNVERIFIED |
| OAOvergaard's Artcraft Printers, INC. | South Bend | IN | — | ◇ UNVERIFIED |
| OPOvernight Printing Seattle, INC. | Seattle | WA | — | ◇ UNVERIFIED |
| OPOvernight Printing Seattle, INC. | Seattle | WA | — | ◇ UNVERIFIED |
| OPOverwraps Packaging, L.p. | Dallas | TX | — | ◇ UNVERIFIED |
| OVO & V Printing INC | Alamosa | CO | — | ◇ UNVERIFIED |
| OLOwl Lake, LLC | Hopkins | MN | — | ◇ UNVERIFIED |
| OCOxin Corporation | Mv | CA | — | ◇ UNVERIFIED |
| OHOzarks Hydrographics LLC | Nixa | MO | — | ◇ UNVERIFIED |
| OPOzone Press LLC | Ozone Park | NY | — | ◇ UNVERIFIED |
| PPP2k Printing, LLC | North Conway | NH | — | ◇ UNVERIFIED |
| PPPacer Print | Simi Valley | CA | — | ◇ UNVERIFIED |
