HEX Thruster
A 3D‑printed thruster that combines the heat exchanger and nozzle into a single component with no internal interfaces or moving parts.
Maturity not rated
Startup · United States
Portal Space Systems
HQ Bothell, United States
Spacecraft maker developing rapidly maneuverable vehicles (Supernova) for operations across and between orbital regimes.
Products3
Newest unveiled first. Open a product for its milestone timeline, components and sources.
Funding2 rounds · $67.5M
- Disclosed
- $67.5M
- Latest
- $50.0MSeries A · Apr 9, 2026
Apr 3, 2025Apr 9, 2026
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Apr 9, 2026 | Series A | $50.0M | $250M | Geodesic Capital, Mach33 Financial Group | AlleyCorp, Booz Allen Ventures, FUSE | Confirmed |
| Apr 3, 2025 | Seed | $17.5M | — | AlleyCorp | First In, FUSE, Mach33 Financial Group | Reported |
- $50.0MApr 9, 2026
- $17.5MApr 3, 2025
Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.
Sources6
Products1
- 1CompanyPortal Space
Portal Space Systems · Supports Organization · name, System
“Portal Space Systems Raises $50 Million Series A to Advance Rapidly Maneuverable Spacecraft Capabilities”
Funding5
- 2
Portal Space Systems · Apr 9, 2026 · Supports Funding round · amount, Funding round · announced on, Funding round · investors, Organization
“today announced it has raised $50 million in Series A funding. The round was led by Geodesic Capital and Mach33”
- 3Regulatory filingPortal Space Systems Inc. - SEC Form D (0001231919-26-000275)
U.S. Securities and Exchange Commission · Mar 26, 2026 · Supports Funding round
“Total Amount Sold $61,476,510 USD”
- 4
Forge Global · Supports Funding round · post money valuation usd
“04/09/2026 Series A-1 $49.48M $10.87 $250M”
- 5
Payload · Supports Funding round, Funding round · amount
“AlleyCorp led the round, which included additional participation from Mach33, FUSE, First In, TFX, Offline Ventures, and Atypical.”
- 6
Exterra JSC · Supports Funding round · post money valuation usd
“closed a $50 million Series A in April 2026, valuing the company at $250 million”
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