| Business | Phone |
| Craig Associates 3513 Butler St, Pittsburgh 15201 | (412) 621-9797 |
| Mullin & Lonergan Assoc 800 Vinial St # B414, Pittsburgh 15212 | (412) 323-1950 |
| Pittsburgh Downtown Prtnrshp 925 Liberty Ave # 1, Pittsburgh 15222 | (412) 566-4190 |
| Urban Research Inc Pittsburgh 15213 | (412) 621-3123 |