# Navy Seeks Submarine Backbone Concepts in Alexandria

The Department of the Navy and Naval Sea Systems Command will hold a classified industry day on November 18, 2026, at Systems Planning and Analysis in Alexandria, Virginia, to gather technical concepts for a future submarine digital backbone, including SSN(X) objectives and a submarine-wide Common Computing Environment. The event is informational and is not a solicitation or contract award. Attendance is in person and limited to U.S. citizens with an active final SECRET-or-higher clearance. Registration is due October 16, and DISS visit authorization must be approved by October 19.

- Cleared firms with relevant submarine software, computing, data-center, or systems-integration expertise can register by emailing pms351industry@us.navy.mil by **October 16, 2026**.
- Attendees must meet the citizenship and clearance criteria, and their DISS visit authorization must be approved by **October 19, 2026**. The event is scheduled for November 18 at Systems Planning and Analysis in Alexandria.
- Because the Navy describes this as an informational event rather than a solicitation, companies should treat it as an opportunity to provide technical input—not as an active bid or award—and plan participation accordingly.

**Jurisdictions:** federal
**Industries:** Defense & Military, Information Technology
**Topics:** Digital Infrastructure
**Published:** October 02, 2026

### Government Entities
- Department of the Navy (DON)
- Naval Sea Systems Command (NAVSEA)
- Direct Reporting Portfolio Manager, Submarines (DRPM Subs)
- PMS 351 Program Office (PMS 351)

### Sources
- [Navy classified industry day on future submarine digital backbone concepts](https://app.govly.com/opportunities/17194592) - SAM