1 Berkadia   https://www.berkadia.com/

2 Cushman & Wakefield  https://www.cushmanwakefield.com/en/united-states

3 CBRE  https://www.cbre.com/

4 Marcus & Millichap https://www.marcusmillichap.com/mid-atlantic

5 Colliers  https://www.colliers.com/en

6 商业地产网站有Crexi, loopnet.