# Operations & Maintenance (O&M) & Modernization for GSA Real Estate Exchange (G-REX)

Canonical: https://abierto.us/opportunities/47qacb26n0001

- Solicitation number: 47QACB26N0001
- Notice type: Sources sought
- Status: Closed. Deadline was March 13, 2026 at 2:00 PM EDT
- Department: General Services Administration
- Agency: Office of Administrative Services
- Contracting office: Oas Office of Internal Acquisition (47HAA0)
- NAICS: 541519 Other Computer Related Services
- Product or service code: DA01 Support services for activities involved with application development and support to include analysis, design, development, coding, testing, and release packaging, as well as support of off-the-shelf Business Applications.
- Place of performance: Washington, District of Columbia
- County: District of Columbia (FIPS 11001). https://abierto.us/counties/district-of-columbia-dc-11001
- City: Washington. https://abierto.us/cities/washington-dc-1150000
- First posted: February 27, 2026
- Last posted: February 27, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/1b39b459fa674a1fbf6ac6e838ae4d80/view

## Description

The General Services Administration (GSA) seeks industry input on capabilities for modernizing and maintaining the GSA Real Estate Exchange (G-REX), a mission-critical Appian-based platform supporting the Public Buildings Service (PBS) in delivering optimal real estate acquisitions to American taxpayers. Both Operations & Maintenance and modernization services are required, with vendors having the option to propose their preferred modernization approach from the available options.

## Publications

- February 27, 2026: Sources sought, due March 13, 2026 at 2:00 PM EDT. Notice 1b39b459fa674a1fbf6ac6e838ae4d80. https://sam.gov/workspace/contract/opp/1b39b459fa674a1fbf6ac6e838ae4d80/view

## Points of contact

- Sharmel Lane, sharmel.lane@gsa.gov, 2022087005
- Kenya McPherson, kenya.mcpherson@gsa.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/47qacb26n0001.