6. Newmark Knight Frank
| Address | 125 Park Ave. |
| City | New York |
| State | NY |
| Zip | 10017 |
| Phone | 212.372.2000 |
| Website | www.newmarkkf.com |
| Total Value of Sales and Leasing Transactions | $53,347,040,969.00 |
| Total Global Leasing Volume | $37,342,928,678.30 |
| Total Leases | |
| Total Global Sales Volume | $16,004,112,290.70 |
| Total Properties Sold | |
| Brokers Employed |