Operations & Maintenance (O&M) & Modernization for GSA Real Estate Exchange (G-REX)
Closed Pre-Solicitation Posted
- Solicitation number
- 47QACB26N0001
- Agency
-
Office of Administrative Services
General Services Administration
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- 541519 Other Computer Related Services
- Place of performance
- Washington, District of Columbia 20405, United States
Notice details come from SAM.gov. Updated .
About this opportunity
The General Services Administration (GSA) Office of Administrative Services is seeking industry input on Operations & Maintenance and modernization capabilities for the GSA Real Estate Exchange (G-REX), an Appian-based platform that supports the Public Buildings Service in managing real estate acquisitions. G-REX is a mission-critical application serving over 1,400 users with electronic lease file management, milestone scheduling, and policy guidance integration. Key requirements include ongoing operations and maintenance services encompassing application support, security compliance, performance monitoring, and AI integration, along with platform modernization through one of three options: Appian Cloud migration, on-premise implementation on existing GSA Kubernetes infrastructure, or single-tenant commercial cloud deployment. Technical qualifications mandate FedRAMP compliance (if applicable), FISMA compliance, Section 508 accessibility, federal data residency, and development using Agile methodology with JIRA-based defect tracking and CI/CD deployment strategies. The Request for Information (RFI) response deadline is March 13, 2026 at 2:00 PM EST, with submissions to be directed to Contracting Officer Sharmel Lane and Contract Specialist Kenya McPherson via email.
This procurement carries no small business set-aside designation. The RFI document does not identify any current incumbent contractors or provide specific award values or budget ranges at this pre-solicitation stage. The current technical environment operates on Appian 25.3 on-premise with MySQL 8.4 database, Red Hat Enterprise Linux 8, and maintains 12 or more active system integrations across three operational environments (Integration, Test, and Production). RFI responses are limited to 15 pages plus appendices and must address company profile and experience, technical approach, security and compliance considerations, staffing and service delivery capabilities, and pricing information. The anticipated full solicitation release is targeted for the second quarter of Fiscal Year 2027, indicating this RFI serves as an information-gathering tool to inform the formal procurement strategy.
Notice text
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.
Files
| File | Type | Posted |
|---|---|---|
| GREX Request for Information final draft 27 Feb 2026.pdf |
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