| Award | On-Call General Construction Service for Abated Components | Homeless Services | Sienia Construction, Inc. | $2.3M | Competitive Sealed Bids | Dec 8, 2025 | 07124B0004001 |
| Award | Reconstruction of the Entrance Lobby at Pelham Fritz Recreation Center | Parks and Recreation | Sienia Construction, Inc. | $883K | Competitive Sealed Bids | Mar 14, 2023 | M058-118M |
| Award | Highbridge Park Comfort Station Construction | Parks and Recreation | Sienia Construction, Inc. | $3.5M | Competitive Sealed Bids | Dec 9, 2021 | M037-218M |
| Award | RECONSTRUCTION OF A COMFORT STATION | Parks and Recreation | Sienia Construction, Inc. | $1.2M | Competitive Sealed Bids | Feb 13, 2019 | 84617B0192001 |
| Award | RECONSTRUCTION OF A COMFORT STATION | Parks and Recreation | Sienia Construction, Inc. | $825K | Competitive Sealed Bids | Sep 15, 2017 | 84617B0042001 |