Highly maneuverable spacecraft for responsive space operations
Portal Space Systems is developing Supernova, a highly maneuverable spacecraft able to rapidly change orbits — aimed at responsive space and national-security missions. Founded by propulsion engineer Jeff Thornburg, formerly of SpaceX.
Space / Defense📍 Bothell, WA
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Portal Space Systems going public?
No. Portal Space Systems is private and has not filed to go public. There is no S-1 on file.
What is Portal Space Systems' valuation in 2026?
No confirmed valuation is on record for Portal Space Systems. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Portal Space Systems filed an S-1?
No public S-1 is on file for Portal Space Systems.
Can you buy Portal Space Systems stock?
No. Portal Space Systems is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Portal Space Systems on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Jeff Thornburg
HQ
Bothell, WA
IPO Status
private
Fundraising Status
private
Vertical Intelligence — Defense / Aerospace
Federal awards
7
prime contracts, last 36 months
Obligated
$5.59M
top: Department of Defense
Largest award
$1.7M
Department of Defense
Latest award
2025-12-29
Largest award: HIGH DELTA-V SPACE VEHICLE FOR PERSISTENT ORBITAL TRACKING AND RAPIDLY RESPONSIVE SPACE OPERATIONS (FA864924P0381)
Name-verified against recipient "PORTAL SPACE SYSTEMS INC." on USASpending.gov as of 2026-09-19. Prime awards only — subcontracts and classified work are not visible in the public registry. Verify on USASpending.gov ↗
Talent Signal
Hiring trend
▼ Hiring downtrend
-12% vs 2026-08
Open roles
15
via greenhouse
Product-build share
93%
engineering, research, product, design
Trajectory
tightening
heavy product build — 93% of open roles are product-building functions (engineering/research/product) — 9 of 15 open roles are engineering.
Open roles trending down; no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Head of Electrical & Avionics Engineering Mechanism EngineerSenior Electrical Engineer – Spacecraft Power Systems & Bus ArchitectureSenior Infrastructure EngineerSenior Satellite Guidance, Navigation, and Control (GNC) EngineerSenior Software Integration and Test Engineer
Counted from Portal Space Systems's live job board as of 2026-09-14; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Jeff Thornburg
Products
Supernova maneuverable spacecraft
Competitors
Impulse Space · True Anomaly
SpaceDefenseSpacecraftPropulsion
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.