The Naval Information Warfare Center (NIWC) Atlantic is seeking support for ESS Sustainment under a draft RFP, with the final solicitation expected in June 2026 and award by August 2026. The contract will be a performance-based task order with a base period of one year, plus four one-year options and one six-month option. This opportunity is restricted to SEAPORT NXG MAC holders only, who must register for PIEE accounts to participate. Performance will occur at a location specified in the Performance Work Statement (PWS), which contains Controlled Unclassified Information and requires a signed Non-Disclosure Agreement for access. No budget amounts are specified in the description.