| Rank | Company | Phone | Amount | Comments |
|---|---|---|---|---|
| 1 | MacKay Sposito Constructors dba Riparia Environmental | 360-695-3411 | $319,486.00 | |
| 2 | Whirlwind Services, Inc. dba Whirlwind Clean & Green | 425-697-4373 | $355,804.75 | |
| 3 | Ventilation Power Cleaning, Inc. | 206-634-2750 | $402,930.00 | |
| 4 | Olson Brothers Pro-Vac, LLC | 253-435-4328 | $465,918.99 | |
| 5 | UtiliGi, LLC | 253-863-3881 | $1,634,335.00 |