The Space Development Agency is seeking potential contractors to develop and integrate multiple, globally dispersed Ground Entry Point (GEP) installations in support of its Tranche 3 constellation. The contractor will be responsible for site civil work, procurement, installation, integration, testing, and verification of communications shelters, antennas, optical terminals, and networking equipment. The anticipated contract will be an Indefinite Delivery Indefinite Quantity type with a five-year period of performance from the award date, and the performer must maintain an active SECRET clearance. The RFP release is anticipated to be posted in February 2026. This is a sources sought notice for market research only and does not constitute a formal solicitation.