| Business | Phone |
| 1211 Chestnut Street Building 1211 Chestnut St, Philadelphia 19107 | (215) 561-6479 |
| 1429 Walnut St Assoc 1429 Walnut St, Philadelphia 19102 | (215) 563-5111 |
| 215 S Broad St Assoc 215 S Broad St # 600, Philadelphia 19107 | (215) 545-3361 |
| 3535 Market Street Assoc 3535 Market St # 1350, Philadelphia 19104 | (215) 387-5502 |
| 8 Penn Center 100 S Broad St # 1300, Philadelphia 19110 | (215) 979-8736 |
| Alison Bldg 1809 Walnut St, Philadelphia 19103 | (215) 587-0723 |
| Arsenal Business Center 5301 Bridge St, Philadelphia 19137 | (215) 537-8400 |
| Artwin Business Coop 100 N 20th St, Philadelphia 19103 | (215) 568-9645 |
| Belgravia 1811 Chestnut St # 800, Philadelphia 19103 | (215) 751-9524 |
| Bellmont Building 211 N 13th St, Philadelphia 19107 | (215) 963-1491 |
| Board-Directors Of City Trusts 21 S 12th St, Philadelphia 19107 | (215) 568-0440 |
| Building Fourteen Hundred One 1401 Walnut St, Philadelphia 19102 | (215) 564-1877 |
| Business Center 7500 Germantown Ave # 113, Philadelphia 19119 | (215) 247-2473 |
| City Centre Building 121 N Broad St, Philadelphia 19107 | (215) 563-7426 |
| Convention Center Plz 1321 Arch St, Philadelphia 19107 | (215) 751-0670 |
| W P Bldg 245 N Broad St, Philadelphia 19107 | (215) 563-5423 |
| West World Management Inc 1515 Market St, Philadelphia 19102 | (215) 636-1515 |
| Widener Assoc Ltd 1339 Chestnut St, Philadelphia 19107 | (215) 972-0097 |
| Fifteen Twenty Nine Bldg 1529 Walnut St, Philadelphia 19102 | (215) 563-4273 |
| Gateway Bldg 3535 Market St # 3535, Philadelphia 19104 | (215) 387-3092 |
| J & E Business Center 5141 Spruce St, Philadelphia 19139 | (215) 748-1327 |
| Jefferson Building 1015 Chestnut St, Philadelphia 19107 | (215) 922-1666 |
| Kennedy Wilson Properties 1101 Market St # 105, Philadelphia 19107 | (215) 592-1400 |
| Laborers District Council Bldg 1321 Arch St, Philadelphia 19107 | (215) 496-9110 |
| Lafayette Building Assoc 437 Chestnut St, Philadelphia 19106 | (215) 627-4446 |
| Lenas Building 1843 W Allegheny Ave, Philadelphia 19132 | (215) 228-1130 |
| Lofts At Liberty 1600 Chestnut St, Philadelphia 19103 | (215) 561-7717 |
| Mulberry Atrium 2133 Arch St, Philadelphia 19103 | (215) 665-0549 |
| Northern Medical Offices 1335 N Tabor Rd, Philadelphia 19141 | (215) 224-2481 |
| Perry Square Realty 225 S 15th St, Philadelphia 19102 | (215) 545-7116 |
| Powelton Medical Center 3641 Lancaster Ave, Philadelphia 19104 | (215) 387-1025 |
| Professional Arts Building 205 N Broad St, Philadelphia 19107 | (215) 564-4089 |
| Reit Management & Research 1500 Market St # Lm1, Philadelphia 19102 | (215) 665-9797 |
| Reit Management & Research 200 N 16th St, Philadelphia 19102 | (215) 665-1414 |
| Rodin Partners 2000 Hamilton St # 113, Philadelphia 19130 | (215) 569-4604 |
| Silver & Harting 1811 Chestnut St, Philadelphia 19103 | (215) 569-0754 |