| Modification # | Description | Disclosure # | Award Date | Start Date | End Date | Department | Amount |
|---|---|---|---|---|---|---|---|
| PROFESSIONAL TASK ORDER SERVICES: GROUP B) AIRPORT ENGINEERING (NON-FEDERAL) | 11/22/2016 | 10/24/2012 | 12/31/2019 | CHICAGO DEPARTMENT OF AVIATION | $6,800,000.00 | ||
|
266333
| PROFESSIONAL TASK ORDER SERVICES: GROUP B) AIRPORT ENGINEERING (NON-FEDERAL) | 04/02/2019 | 10/24/2012 | 12/31/2019 | CHICAGO DEPARTMENT OF AVIATION | $1,233,498.24 | |
| PROFESSIONAL TASK ORDER SERVICES: GROUP B) AIRPORT ENGINEERING (NON-FEDERAL) | 06/17/2019 | 10/24/2012 | 12/31/2020 | CHICAGO DEPARTMENT OF AVIATION | DUR | ||
|
266335
| PROFESSIONAL TASK ORDER SERVICES: GROUP B) AIRPORT ENGINEERING (NON-FEDERAL) | 03/31/2020 | 10/24/2012 | 12/31/2022 | CHICAGO DEPARTMENT OF AVIATION | DUR |