EFSI

Flight Software & Ground Systems
for Operational NASA Missions

We build, certify, and operate mission-critical software at NASA Goddard Space Flight Center and NOAA — from flight code on orbit to the ground systems that command it.

SBA-certified WOSB • NAICS 541512, 541330, 541519, 541715

Our Capabilities Career Opportunities
0 NASA Missions
0 Years Experience
0 Founded
Missions We Support

What We Do

We build it, certify it, and operate it — end-to-end mission software capability under one roof.

Mission Software

We build it

Flight-certified software for spacecraft and instruments, developed using NASA's Core Flight System and validated through high-fidelity simulation.

Mission Assurance

We certify it

Safety analysis, software assurance, and systems engineering that ensure compliance with NPR 7150.2D and NASA-STD-8739.8 across the full mission lifecycle.

Operations Infrastructure

We operate it

Ground systems, mission operations centers, and integrated development environments that keep spacecraft commanding and telemetry running 24/7.

JWST Mirror

Supporting NASA's Flagship Missions

From flight software development to systems engineering and operations, EFSI has supported NASA's premier missions for over 25 years. Our engineers have been with programs like JWST, Hubble, and GOES-R from development through launch and on-orbit operations — providing the institutional continuity that reduces program risk and keeps missions running.

Why EFSI