United States · 
Who invested in Noble Gas Systems?
Noble Gas Systems's investors include AP Ventures, National Science Foundation, Accel, ALIAD (Air Liquide Venture Capital) and NOVA by Saint-Gobain.
2026
$4.2MSeries B$1.5MRound
United States · Series B startup
Who invested in Noble Gas Systems
Funding summaryUpdated 26 Oct 2026
$5.7Mraised across 2 rounds since 2025, from 2 sources
$4.2MSeries B$1.5MRound
- Latest round
- Round, $1.5MApr 2026
- Biggest round
- $4.2MSeries B · Mar 2025
- Investors
- 5 (1 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $4.2M Mar 2025
- Biggest round
- $4.2M Series B · Mar 2025
- Between rounds
- 13 months from the last two
The rounds
- Apr 2026Round$1.5M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $1.5M sold, first sale Apr 2026
- Mar 2025Series B$4.2M5 new
AP VenturesLead
National Science Foundation
Accel
ALIAD (Air Liquide Venture Capital)- NOVA by Saint-Gobain
Reported by AP VenturesSEC filing: $4.2M sold, first sale Feb 2025
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
NOVA by Saint-GobainGrowth equity1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 2 firms list Noble Gas Systems as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Noble Gas Systems
How much has Noble Gas Systems raised?
Noble Gas Systems has raised $5.7M across 2 rounds since 2025.
When did Noble Gas Systems last raise?
Noble Gas Systems's most recent round, $1.5M, was in Apr 2026.
What was Noble Gas Systems's biggest round?
Noble Gas Systems's largest round on record is $4.2M (Series B), in Mar 2025, led by AP Ventures.
Who backed Noble Gas Systems first?
Noble Gas Systems's first round on record, in Mar 2025, was backed by AP Ventures, National Science Foundation and Accel and 2 others.
What stage is Noble Gas Systems at?
Noble Gas Systems's latest named round is a Series B, in Mar 2025.
Where is Noble Gas Systems based?
Noble Gas Systems is based in the United States.
Who led Noble Gas Systems's rounds?
AP Ventures led the Series B in 2025.
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