Company report

Mantle8

France’s Mantle8 raises €31 million to fund the world’s most advanced natural hydrogen exploration and drilling campaign Mantle8, a Grenoble, France-based natural hydrogen exploration company, has raised €31 million in Series A funding

Grenoble, FranceHardware

Latest capital

Series A · $31.0M · May 13, 2026

Latest signal

Recently Funded · strength 98

May 13, 2026

Tracked investor network

Capital history

Capital Map

Tracked rounds

1

Reviewed funding events

Total tracked

$31.0M

Based on disclosed rounds

Named investors

1

Sandwater

Capital progression

Series A

1 round

May 13, 2026

Series A

$31.0M

Valuation unknown

No disclosed valuation points are attached yet.

Series A · $31.0M

May 13, 2026 · Announced

Medium confidence

Reviewed movement

Signal Timeline

Recently Funded

May 13, 2026 · strength 98

s most advanced natural hydrogen exploration and drilling campaign Mantle8 announced a USD 31,000,000 series a round.

Medium confidence

Open roles

Hiring Pulse

No active jobs are attached yet.