Thunder 3U
Nanosatellite bus
A 3 to 6 kg satellite platform measuring 10 x 10 x 34 cm.
Learn more
SFL Missions
SpaceDefenceToronto, ON
Designs, builds and operates complete small satellite missions, offering space-proven bus platforms from 3 to 500 kg for Earth observation, communications and science customers worldwide. Spun out of the University of Toronto in 2026.
Canadian innovation builds a brighter tomorrow.
About
Company site: sflmissions.comDesigns, builds and operates complete small satellite missions, offering space-proven bus platforms from 3 to 500 kg for Earth observation, communications and science customers worldwide. Spun out of the University of Toronto in 2026.
Spun out of the University of Toronto Institute for Aerospace Studies in May 2026 as an independent private company, after 27 years as a university laboratory. sflmissions.com
Selected in March 2026 to develop eight 150 kg Node spacecraft for NASA's HelioSwarm heliophysics mission on its DAUNTLESS platform. sflmissions.com
Built the GHGSat greenhouse-gas monitoring constellation and won a November 2025 contract for two further microsatellites, GHGSat-C18 and C19. sflmissions.com
Products & Services
Company site: sflmissions.comProducts SFL Missions publishes on its own site. Each card links to the page it was taken from.
Spartan 6U
Nanosatellite bus
A 6 to 12 kg spacecraft platform measuring 10 x 20 x 36 cm.
Learn moreJaeger 12U/16U
Nanosatellite bus
A 12 to 24 kg bus, configurable as 12U (20 x 20 x 36 cm) or 16U (20 x 20 x 45 cm).
Learn moreNemo
Microsatellite bus
A 15 to 20 kg satellite platform measuring 20 x 30 x 44 cm.
Learn moreDefiant
Microsatellite bus
A 20 to 50 kg bus measuring 36 x 36 x 45 cm, scalable.
Learn moreDefiant XL
Microsatellite bus
A spacecraft platform up to 120 kg, under 50 x 50 x 80 cm, scalable.
Learn moreDauntless
Small satellite bus
The largest SFL platform, up to 500 kg and under 1 x 1 x 1 m, scalable in -E, -EG and -L variants.
Learn morePartnerships
Publicly announced partnerships.
GHGSat
Long-running microsatellite supplier; contracted for GHGSat-C18 and C19 (November 2025).
People
Sourced from the company's own pages or announcements.
Robert E. Zee
Director & CEO
Technology Focus
Company site: sflmissions.comTerms the company uses about its own work.
MicrosatellitesNanosatellitesSmall satellite busesFormation flyingSatellite integration and testMission operations
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