| AFL-CIO Secretary-Treasurer | Union | $412,556.00 |
| Metcalfe Realty Company | Commercial Leasing Company | $96,606.00 |
| Calibre Group | CPA Firm | $79,000.00 |
| McLaughlin Company, Inc. | Insurance Broker | $78,372.00 |
| Martinair Inc | Airline Company | $63,832.00 |
| Xerox Capital Services, LLC | Office Equipment Rental Company | $56,793.00 |
| AT+T Mobility | Telecommunications Provider | $27,705.00 |
| Sherman, Dunn, Cohen, Leifer + Yellig | Law Firm | $18,689.00 |
| BNA | Publisher | $15,097.00 |
| PNC Bank | Bank | $11,796.00 |
| Atlantech Online, Inc. | Internet Service Provider | $11,166.00 |
| Center for Military Recruitment | Labor-Management Trust | $11,111.00 |
| Bell Canada | Telecommunications Provider | $10,175.00 |
| Hasler, Inc. | Postage Meter Rental | $9,876.00 |
| Staples | Office Supply Company | $9,218.00 |
| AT+T. | Telecommunications Provider | $9,165.00 |
| AVAYA, Inc. | Telephone Equipment Company | $8,922.00 |
| QuickBooks Payroll Service | Payroll Service Provider | $8,447.00 |
| Dataprise, Inc. | Computer Consultants | $8,275.00 |
| Bell Mobility | Telecommunications Provider | $8,037.00 |
| Mail Finance | Postage Meter Rental | $5,690.00 |