- Near North Insurance Brokerage
- Net 1 Payment Services
- Netcom Solutions International Inc.
- New Age Systems
- New Vision Communication
- New York Life Insurance Company
- NewClients, Inc.
- Newport News
- Nextel
- Nomadic Display
- Norfolk Convention and Visitors Bureau
- Norfolk Southern Corporation
- Norfolk Waterside Marriott
- Norfolk Waterside Marriott Hotel and Convention Center
- North American Meat Processors Association
- Northern Virginia Building Industry Association
- Northern Virginia Community College
- Northstar Express
- Northstar Travel Media
- Norton Community Hospital
- Novant Health UVA Health System Culpeper Medical Center
- Novant UVA Health System Haymarket Medical Center
- Novant UVA Health System Prince William Medical Center
- Octogon Sports Marketing)
- Office Masters Inc.
- Oh Heck! Marketing Comm. And Design
- Old Dominion Electric Cooperative
- Omniplex World Services
- Operation Lifesaver Inc and National Support Center
- Optical Laboratories Association
- Orbital
- OrthoVirginia
- OSI
- Outdoor Power Equipment Aftermarket Association
- Outdoor Power Equipment Institute
- Overnite Transportation Company
- Owens and Minor, Inc.
- PaeTec Communications, Inc.
- Page Memorial Hospital
- PaineWebber Inc.
- Palm Springs Desert Resorts Convention and Visitors Authority
- Paradigm Technologies, Inc.
- Paramount's Kings Dominion
- Parham Doctors' Hospital
- Party Perfect
- Peoples Income Tax, Inc.
- Performance Events
- Perot Systems Corporation
- Perotsystems
- PGI