The Space Systems Command SDN-B program seeks white papers as market intelligence for a vendor-diverse LEO space-to-space communications mesh and may onboard selected companies as Associate Members of the SDN Industry Consortium under a $0-value OTA pursuant to 10 U.S.C. § 4022. Consortium participation involves collaborative forums, technical working groups, interoperability assessments, standards formulation, risk reduction, and multi-vendor on-ramp coordination, with ACAs and OCI/proprietary-information protections required. Technical focus areas include proliferated space architecture, space networking/routing, optical inter-satellite links, RF mesh/payload hosting/interface standardization, ground architecture, RF antennas/receivers, and cybersecurity/cross-domain security. Eligibility is restricted to U.S.-owned and operated entities with at least CUI-level information handling (NIST SP 800-171/DoD CMMC) and active SAM.gov registration under NAICS 541715, while higher classified capabilities are welcomed. Responses are limited to a one-page cover sheet, a two-page white paper, and an optional pitch deck of up to 10 content slides; objections to release of information to listed non-Government advisors must be submitted in writing within five calendar days of notice publication.