| | QUAD REPLACE STEAM HUMIDIFICATION SYSTEM-GC. | SEVERN ASSOCIATES LLC | $4,939,968 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 30, 2025 | Sep 30, 2025 | Oct 10, 2025 |
| | SERC: IMPROVE DOCK ROAD. | SEVERN ASSOCIATES LLC | $1,863,316 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 9, 2025 | Sep 9, 2025 | Sep 19, 2025 |
| | NMAAHC EXTERIOR WINDOW & FACADE CLEANING. | SEVERN ASSOCIATES LLC | $399,419 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 12, 2023 | Sep 12, 2023 | Jun 20, 2026 |
| | MSC: VERIFY STORMWATER BMP FOR MDE COMPLIANCE. | SEVERN ASSOCIATES LLC | $279,090 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z2JAREPAIR OR ALTERATION OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 15, 2023 | Aug 15, 2023 | Aug 30, 2024 |
| | NMNH: IMPROVE WEST WING BASEMENT DRAINAGE. | SEVERN ASSOCIATES LLC | $594,598 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | May 17, 2023 | May 17, 2023 | Nov 22, 2024 |
| | SHF: CONSTRUCT BUILDING 38 FOR CASTLE COLLECTION. | SEVERN ASSOCIATES LLC | $3,170,278 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 14, 2021 | Sep 14, 2021 | Oct 30, 2023 |
| | MSC: REPAIR HARDSCAPE AT SUITLAND COLLECTIONS CENTE. | SEVERN ASSOCIATES LLC | $499,148 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 24, 2020 | Jul 24, 2020 | Oct 15, 2021 |
| | SERC: HOMESTEAD/SELLMAN HOUSE RENOVATION | SEVERN ASSOCIATES LLC | $6,596,563 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 19, 2018 | Sep 19, 2018 | Jul 31, 2024 |
| | SERC: INSTALL GEOTHERMAL TO NEW DOMINION BLDG. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $2,623,476 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 15, 2017 | Aug 15, 2017 | Jun 20, 2026 |
| | IGF::OT::IGF NMAI EXTERIOR IMPROVEMENTS / REPLACE EAST MAIN ENTRY DOORS | SEVERN ASSOCIATES LLC | $680,410 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Y1JACONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS | Sep 16, 2016 | Sep 16, 2016 | Oct 17, 2017 |
| | FIRESTOPPING PHASE V AT NASM IGF::OT::IGF | SEVERN ASSOCIATES LLC | $20,089 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Apr 6, 2015 | Mar 30, 2015 | Apr 9, 2015 |
| | CASTLE FLOOR&OFFICE RENOVATIONS IGF::OT::IGF | SEVERN ASSOCIATES LLC | $64,440 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Apr 1, 2015 | Mar 30, 2015 | Dec 31, 2015 |
| | GREAT HALL LEAD INSPECTION AND PAINTING. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $675,110 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 28, 2014 | Aug 22, 2014 | May 29, 2015 |
| | BREAK ROOM PAINTING SI WIDE. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $18,621 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 27, 2014 | Aug 20, 2014 | Sep 30, 2014 |
| | RESTORE FORMER CALSWE SCULPTURE SITE. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $47,449 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 15, 2014 | Aug 1, 2014 | Sep 30, 2014 |
| | WATERLINE VALVE REPAIRS. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $83,133 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 14, 2014 | Aug 1, 2014 | Aug 2, 2015 |
| | REPLACE LEAD LINED CEILING TILES. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $941,179 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 14, 2014 | Aug 1, 2014 | Jan 24, 2016 |
| | REPAIR WOODEN WALKWAY FROM C LOT. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $68,944 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 14, 2014 | Aug 1, 2014 | Sep 30, 2014 |
| | REPAIR FIRE DAMPERS FOR MCDONALD'S RESTAURANT AT NASM. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $93,582 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Aug 5, 2014 | Jul 22, 2014 | Sep 30, 2014 |
| | WINDOW FILM REPLACEMENT AT FREER. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $21,407 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 31, 2014 | Jul 10, 2014 | Sep 30, 2014 |
| | REPAIR MALL STEAM TUNNEL FROM NHB TO AIB/SIB. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $1,032,824 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 31, 2014 | Jul 15, 2014 | Mar 30, 2015 |
| | INSTALL LIGHTS IN AIR HANDLER UNITS. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $15,482 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 25, 2014 | Jul 18, 2014 | Sep 30, 2014 |
| | PARKING LOT SEALING AND STRIPING AT NHB. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $53,124 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 25, 2014 | Jul 18, 2014 | Sep 30, 2014 |
| | REPAIRS REVOLVING DOOR. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $20,809 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 25, 2014 | Jul 16, 2014 | Sep 30, 2014 |
| | INSPECTION&CERTIFICATION OF LIFELINE SYSTEMS AT DWRC. IGF::OT::IGF | SEVERN ASSOCIATES LLC | $12,899 | SMITHSONIAN INSTITUTION | SMITHSONIAN INSTITUTION | — | 236220Commercial and Institutional Building Construction | Z1JAMAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS | Jul 25, 2014 | Jul 18, 2014 | Sep 30, 2014 |