Sphinx Defense wins $287 million Space Force contract for ESS mission planning software

what happened

Space Systems Command awarded Sphinx Defense a $287 million contract, via Other Transaction Authority through the Space Enterprise Consortium, to develop mission planning application software that plans, allocates and manages communications across the future Evolved Strategic Satellite Communications (ESS) constellation, per SpaceNews. Boeing is building the ESS satellites, which will replace the Lockheed Martin-built Advanced Extremely High Frequency (AEHF) system, under a separate $2.8 billion Space Force contract covering the first two spacecraft with options for two more.

why it matters

The award is a large jump for Sphinx Defense, a ground-software specialist previously reported at contracts in the single-digit millions under the Space Force's Joint Antenna Marketplace effort, and puts it inside the mission-planning layer of the successor to the US military's primary jam-resistant strategic communications constellation. It also underscores the Space Force's continued use of OTA vehicles to bring smaller commercial software vendors into strategic-communications ground systems rather than relying solely on the prime contractor.

signal-to-noise

MULTI-SOURCE

3/5

leadtier 3 of 5 on its owncorrob-1 earned from 1 rule

calculation

3base tier 3 from lead source class "trade" (SpaceNews) spacenews.com-1corroboration crawl ran and found nothing+1survived uncontested past the persistence window (caps at 4)

= 3current score, recomputed by the engine on every change

movements

2→32026-08-11 · survived uncontested past the persistence window (caps at 4)

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Sphinx Defense wins $287 million Space Force contract for ESS mission planning software

what happened

why it matters

signal-to-noise

quick facts