Space Systems Command awarded Sphinx Defense a $287 million Other Transaction Authority agreement on July 27 to build the mission planning software that will run the Space Force's next-generation nuclear command, control, and communications satellite network, service officials announced.
Background
The award covers Phase 3 of the Evolved Strategic SATCOM (ESS) Mission Planning application, one piece of the Ground Resilient Integration & Framework for Operational NC3 (GRIFFON) ground-segment program. ESS is the satellite constellation set to replace the aging Advanced Extremely High Frequency (AEHF) fleet, which currently provides strategic nuclear command, control, and communications to U.S. forces worldwide. The Space Force designed ESS to deliver secure, jam-resistant, survivable communications, a requirement that extends down through the ground software that plans and manages every satellite pass.
Boeing is building the first two ESS satellites under a separate $2.8 billion contract awarded in 2025, with options for two additional spacecraft. GRIFFON, the ground segment that will operate those satellites once they reach orbit, was split into multiple competitively prototyped segments — framework, ground integration, system-of-systems integration, and mission applications — rather than handed to a single prime contractor. That structure is consistent with an approach Space Systems Command has used elsewhere to bring specialized software vendors onto sensitive national security space programs rather than defaulting only to the traditional defense primes that have historically built NC3 ground systems. Sphinx Defense's Phase 3 award follows earlier competitive-prototyping phases 1 and 2, meaning the company has already been building toward this milestone rather than winning the work cold. That phased structure let Space Systems Command evaluate Sphinx Defense's performance on smaller increments of the ESS ground segment before committing to this larger award.
Key Details
Under the OTA agreement, Sphinx Defense will develop software to plan, allocate, and manage communications across the ESS constellation, including managing satellite networks and allocating bandwidth among users, once satellites are on orbit. That mission planning layer is what translates operational orders into the specific satellite commands and communications routing that keep NC3 traffic flowing under contested conditions.
The agreement was made through the Space Enterprise Consortium, an OTA vehicle Space Systems Command has established to bring nontraditional and commercial software companies onto national security space programs faster than a traditional Federal Acquisition Regulation contract allows. Consortium members submit prototype proposals for review outside the standard FAR process, letting the Space Force move from solicitation to award in months rather than the year or more a conventional program of record often requires. The award falls under the oversight of the acting Space Force portfolio acquisition executive for SATCOM and positioning, navigation, and timing (PNT), an indication of how closely the Space Force is tracking ESS ground-segment progress alongside the satellite build itself.
Col. Ryan Rose, commander of System Delta 88, framed the award in operational terms rather than acquisition terms. "System Delta 88 must field this crucial nuclear command, control, and communications satellite mission planning capability with combat quality, combat speed, and combat responsiveness," Rose said, according to Space Systems Command's announcement.
The GRIFFON ground segment carries real budget weight behind it. The Space Force's fiscal 2027 budget request includes $1.8 billion for the broader ESS effort, split between roughly $1.2 billion for the satellites themselves and $571 million for GRIFFON. That funding line underscores that the Sphinx Defense mission planning award is one piece of a ground-segment buildout Space Systems Command is running in parallel with satellite construction, rather than an afterthought once the spacecraft are closer to launch.
What It Means for Contractors
The award is a data point for companies watching whether the Space Force will actually follow through on splitting NC3 ground-segment work among specialized vendors instead of consolidating it under one prime. GRIFFON's structure — separate competitions for the framework, ground integration, system-of-systems integration, and mission-application segments — gives smaller and mid-tier software companies a path onto a program that touches the nation's nuclear command chain, an area historically dominated by a handful of established primes. Sphinx Defense's progression from earlier prototyping phases into a $287 million Phase 3 OTA shows that path can lead somewhere real, not just a demo contract that dead-ends after Phase 1 or 2.
For companies with software, dynamic resource-management, or communications-routing expertise, the Sphinx Defense award signals that Space Systems Command is willing to buy that expertise directly through a consortium OTA rather than requiring it be bundled inside a hardware-heavy prime contract. Firms that have not previously worked NC3 or strategic SATCOM programs should note that the entry point here was competitive prototyping, not a cold-start production bid — companies eyeing the remaining GRIFFON segments should expect Space Systems Command to keep favoring vendors who can show a prototyping track record before committing larger dollars.
The parallel Boeing satellite contract and the scale of the FY2027 budget request also point to sustained near-term demand across the ESS program, not a one-time award. With $571 million requested for GRIFFON alone in a single budget year, additional ground-segment task orders and follow-on software increments are likely to follow as the program matures toward the 2031 target for the first ESS satellites reaching orbit. Contractors positioning for that follow-on work should watch for additional Space Enterprise Consortium solicitations tied to the GRIFFON framework and system-of-systems integration segments, which are structured as competitive lanes distinct from the mission-planning award Sphinx Defense just won.
The award also reinforces that the Space Force continues to lean on Other Transaction Authority rather than traditional FAR-based contracting for fast-moving software work on national security space programs, even when that software touches nuclear command and control. Companies unfamiliar with OTA mechanics — including the Space Enterprise Consortium's membership and proposal process — may need to build that acquisition pathway expertise before they can compete for the next round of GRIFFON work. Joining the consortium, and demonstrating relevant satellite operations, communications-routing, or cybersecurity capability through smaller prototyping efforts, is likely to matter more for winning future GRIFFON segments than a company's size or prior standing as a traditional defense prime.
