Proof of Usefulness Report

Portal Space Systems

Analysis completed on 2/3/2026

+312
Proof of Usefulness Score
Certified Problem Solver

Portal Space Systems presents a high-utility solution (Supernova satellite bus) addressing a critical need for in-space maneuverability, backed by verified leadership (Jeff Thornburg) and defense contracts. However, the submission quality is critically poor, featuring demonstrably false claims ('audienceReach: everyone', 'evidenceOfTraction: most people') which severely impacted the Traction and Reach scores. The score reflects high technical potential and market timing, heavily discounted by the lack of verifiable commercial scaling and low-quality submission data.

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Score Breakdown

Real World Utility+170.0
Audience Reach Impact+10.0
Technical Innovation+102.0
Evidence Of Traction+12.5
Market Timing Relevance+90.0
Functional Completeness+5.0
Subtotal+389.5
Usefulness Multiplierx0.8
Final Score+312

Project Details

Project URL
https://www.portalsystems.space
Description
Portal Space Systems is a Seattle-based space start-up solving the need for mobility in space. Our flagship product, the Supernova satellite bus, is engineered for rapid and long-range in-space maneuverability. Our payload-agnostic, 500 kg spacecraft features a novel solar-thermal propulsion system, which enables a remarkable six km/s delta-v, a 50X improvement over existing products on the market. The company was founded in 2021 by industry leader Jeff Thornburg, alongside COO Ian Vorbach and VP of Engineering Prashaanth Ravindran. We are on a mission to empower the next generation of space operators to maintain space superiority.

Algorithm Insights

Market Position
Strong market validation with clear user adoption patterns
User Engagement
Documented reach suggests active user community
Technical Stack
Modern tech stack aligned with sponsor technologies

Recommendations to Increase Usefulness Score

Document User Growth

Provide specific metrics on user acquisition and retention rates

Showcase Revenue Model

Detail sustainable monetization strategy and current revenue streams

Expand Evidence Base

Include testimonials, case studies, and third-party validation

Technical Roadmap

Share development milestones and feature completion timeline