Exhibit 21
SUBSIDIARIES OF THE REGISTRANT

As of December 31, 2025


Legal NameFormerly Known AsJurisdiction of Incorporation
Redwire Intermediate Holdings, LLCCosmos Finance, LLCDelaware
Redwire Finance Holdings, LLCDelaware
Redwire Finance Holdings II, LLCDelaware
Redwire Holdings, LLCCosmos Acquisition, LLCDelaware
Redwire Space Components, LLCAdcole Space, LLCDelaware
Redwire Space Sensors, Inc.Deep Space Systems, Inc.Delaware
Redwire Space Enterprises, Inc.Deployable Space Systems Inc.California
In Space Group, Inc.Delaware
Loadpath, LLC New Mexico
Redwire Space Europe, LLCMade in Space Europe, LLCDelaware
Redwire Space S.a.r.l.Made in Space Europe S.a.r.l.Luxembourg
Redwire Space Missions, LLCOakman Aerospace, LLCColorado
Redwire Space, Inc.Made in Space Inc.Delaware
Redwire Space Solutions, LLC.Roccor, LLCColorado
Redwire Space Technologies, Inc.Techshot, Inc.Indiana
Redwire Space nvQinetiQ Space nvBelgium
Hera Systems, Inc.California
Redwire Poland sp. z.o.o.Poland
Redwire Defense Tech Intermediate Holdings, LLCRedwire Intermediate Edge Holdings, LLCDelaware
Redwire Defense Tech Intermediate II Holdings, LLCEdge Autonomy Intermediate II Holdings, LLCDelaware
Redwire Defense Tech Holdings, LLCEdge Autonomy Holdings, LLCDelaware
Redwire Defense Tech Operations, LLCEdge Autonomy Operations, LLCDelaware
Redwire Defense Tech, LLCEdge Autonomy, LLCDelaware
Redwire Defense Tech SLO, LLCEdge Autonomy SLO, LLCDelaware
Redwire Defense Tech Energy Systems, LLCEdge Autonomy Energy Systems, LLCDelaware
Redwire Defense Tech Huntsville, LLCEdge Autonomy Huntsville, LLCDelaware
Redwire Defense Tech Ontario, Inc.Edge Autonomy Ontario, Inc.Canada
Redwire Defense Tech UK LtdRDW Aero UK, Ltd.United Kingdom
Edge Autonomy Riga SIALatvia
Edge Autonomy Ukraine LLCUkraine
Space Microgravity Development LLC (d/b/a SpaceMD)Texas