Fundraising FoxMarble
Entrepreneur First '16London, GB · Founded 2016 · 4 known investors
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Marble builds small electric unmanned aircraft along with the battery systems that power them. The airframes are designed for maritime and environmental monitoring, and are also used for cargo delivery, surveillance, and scientific data collection.
Founders & leadership
Marble was founded in 2016 by Mathieu Johnsson and Charles Peurois.
Investors · 4
How we know: the Entrepreneur First portfolio · Not right? Tell us
How we know: funding news · finance.yahoo.com · Not right? Tell us
How we know: funding news · bhbusiness.com · Not right? Tell us
Also in the syndicate · 1
Funding
SEC filings, press & company announcements- Undisclosed amountSeries AJun 2026Source ↗
- Undisclosed amountSeries AOct 2025
Costanoa (lead), Khosla Ventures, Town Hall Ventures
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Marble (marble.aero) is a London, United Kingdom company founded in 2016 that develops small electric unmanned aircraft together with the battery systems that power them. Its airframes are aimed at maritime and environmental monitoring applications, and are additionally used for cargo delivery, surveillance and scientific data collection.
None of the source documents retrieved for this profile describe this company. The fetched material covers unrelated organisations that share the Marble name — a New York youth mental health provider (Marble Health), a tax-focused AI company and a food-supply-chain robotics firm listed under the same name on a startup directory, a Paris/London climate tech venture studio at marble.studio, a London experiential marketing agency, and a Michigan cultured-marble manufacturer. Consequently no externally sourced funding rounds, metrics, events, headcount or competitor data could be verified for Marble (marble.aero) beyond the internally held record.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
▸Research sources · 8
primary sources listed
- Youth mental health company Marble Health raises $15.5M | MobiHealthNewsmobihealthnews.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Marble do?
- Marble is a London-based developer of small electric unmanned aircraft and battery systems for maritime and environmental monitoring.
- Who founded Marble?
- Marble was founded by Mathieu Johnsson, Charles Peurois in 2016.
- Who are Marble's investors?
- Marble's investors include Entrepreneur First, Khosla Ventures, Town Hall Ventures.
- Where is Marble headquartered?
- Marble is headquartered in London, GB.