Name  | City |
| Northstar Contracting | Appleton Area |
| Northstar Promotions | Dale |
| Northtown Lighting | Appleton Area |
| Northwestern Mutual - D.T. Rooyakkers | Appleton Area |
| Northwestern Mutual - Daniel Kroiss | Appleton Area |
| Northwestern Mutual - Jack Herb | Appleton Area |
| Northwestern Mutual - Paul Bonikowske | Appleton Area |
| Northwestern Mutual - Russell Ostrowski | Appleton Area |
| Northwestern Mutual - The Blevons Group | Appleton Area |
| Northwestern Mutual - Warren Schneider | Appleton Area |
| Nothin' But Decks | Appleton Area |
| Now All About You | Appleton Area |
| NRS Publicity Printing | Appleton Area |
| Nsight Telservices | Green Bay Area |
| NuPhysiques Personal Training - MySpace | Appleton Area |
| Nurses PRN Health Services - Branch Office | Appleton Area |
| Nurses PRN Health Services - Corporate Office | Appleton Area |
| Nutrition Nanny | Appleton Area |
| Nvolved, Inc. | Fox Cities Wide |
| Oakridge Farms | Neenah/Menasha |
| Oberstadt Landscapes & Nursery, Inc. | Fremont |
| O'Brien Builders | Appleton Area |
| Oceans & Dreams Art | Fox Cities Wide |
| O'Charley's | Appleton Area |
| O'Connell Funeral Services Inc. | Little Chute |
| OEC Graphics | Appleton Area |
| Office Max - College Avenue | Appleton Area |
| Office Max - Kensington Drive | Appleton Area |
| Ogden Development | Neenah/Menasha |
| Ogden Plumbing | Neenah/Menasha |
| Old Country Buffet | Appleton Area |
| Old Town Tavern | Appleton Area |
| Olive Cellar, The | Appleton Area |
| Olk Investment Group | Neenah/Menasha |
| O'Malley & Associates | Appleton Area |
| Omni Auto Glass | Appleton Area |
| Omni Resources | Appleton Area |
| Omnni Associates | Appleton Area |
| OMS (Organization Management Services) | Appleton Area |
| One 2 One Software Training & Consulting, LLC | Fox Cities Wide |
| One Sand Grain Family Consulting | Appleton Area |
| One Wintry Night Pottery | Neenah/Menasha |
| Oneida Nation Farms | Other: Seymour |
| Online Highways | Fox Cities Wide |
| Online Works, LLC | Appleton Area |
| Onyx Salon / Spa | Appleton Area |
| Operon Systems | Appleton Area |
| OptiVision Laser Centers | Appleton Area |
| Orde Advertising | De Pere |
| Orion Construction Group, LLC | Appleton Area |
| Orv's Pizza | Kaukauna |
| Oscar J. Boldt Construction | Appleton Area |
| Oshkosh Chamber of Commerce | Oshkosh Area |
| Oshkosh Truck | Oshkosh Area |
| Oslo's Scandinavian-American Eatery | Appleton Area |
| OTTO Image Services | Appleton Area |
| Oudenhoven Construction, Inc. | Kaukauna |
| Our Shepherd Child Care | Appleton Area |
| Outagamie County Cemetery List | Fox Cities Wide |
| Outagamie County Co-op Services, Inc. | Appleton Area |
| Outagamie County Regional Airport | Appleton Area |
| Outback Steakhouse | Appleton Area |
| Outdoor Adventure's Paintball Field | Other: Fremont |
| Outdoor Living and Landscapes LLC | Appleton Area |
| Outdoor Outlet/O2 Gear Shop | Appleton Area |
| Outlet Shoppes at Oshkosh, The | Oshkosh Area |
| Outlook Group Corp. | Neenah/Menasha |
| Out-O-Town Supper Club | Heart of the Valley |
| Overhead Door Company of The Fox Cities | Appleton Area |
| Overhead Door of Appleton | Appleton Area |
| Overhead Doors Unlimited | Appleton Area |
| P & D Metal Works Inc. | Neenah/Menasha |
| P & J Photography | Appleton Area |
| Pack Air, Inc. | Neenah |
| Pack Rat Mini Storage | Neenah/Menasha |
| Packaging Tape, Inc. | Appleton Area |
| Packerland Drywall & Painting | Appleton Area |
| Packerland Home Improvements | Heart of the Valley |
| Packerland Rent-A-Mat, Inc. | Appleton Area |
| Packers Pro Shop | Green Bay Area |
| Pacon Corporation | Appleton Area |
| Pages and Pipes | Appleton Area |
| Pages and Pipes - Facebook | Appleton Area |
| Pagoni's Pizza | Fox Cities Wide |
| PAHL Quality Windows and Doors, Inc. | Appleton Area |
| Palisades Heating & Cooling | Menasha |
| Pamco Executive Suites | Appleton Area |
| Pampered Chef - Laurie Robertson | Appleton Area |
| Pam's Bee Sharp Piano Tuning | Appleton Area |
| Panache Salon & Spa | Appleton Area |
| Panda Express | Appleton Area |
| Pannier Home Improvement | Appleton Area |
| Pansies Gardens | Neenah/Menasha |
| Paper Airplane Desktop Publishing & Web Design | Neenah/Menasha |
| Paper City Pub | Neenah |
| Paper Creations | Appleton Area |
| Paper Cut, Inc. | Appleton Area |
| Paper in Wisconsin | Neenah |
| Papermaking Process Consultant, LLC | Appleton Area |
| Paradise Island Ice Cream & Yogurt | Appleton Area |
