Mantle8

Mantle8 is a developer of natural hydrogen exploration and subsurface modeling technologies. From its funding announcement.

€31M Series ARaised 5 months agoGrenoble, FranceEnergy & ClimateFrance
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In their own words

What Mantle8 says it is doing

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Public signal Described in the funding announcement as "developer of natural hydrogen exploration and subsurface modeling technologies". Source

Commercial growth

Public signal Read from the company's own description of what the funding supports.

Why now

Where Mantle8 is today

Mantle8 announced a Series A round of €31M on 13 May 2026, led by Sandwater.

Latest round
Series A
Amount
€31M
Announced
13 May 2026
Headquarters
Grenoble, France
Sector
Energy & Climate
Investors
Also participating
Relevant leadership
Founder and CEO Emmanuel Masini

Momentum AfterRaise intelligence

AfterRaise Score

49
Steady growth
0 funding signals in the last 90 days
Funding recency
18/40
announced within the last 6 months
Round scale
16/25
round size relative to the market
Funding stage
15/20
Series A
Funding cadence
0/15
one funding event tracked this year
Arriving with the signals layer
  • Hiring momentum Open roles and hiring pace
  • Market expansion New offices and new countries
  • Leadership Executive appointments
  • Product activity Launches and releases

Since the raise

What has happened since

  • 13 May 2026
    €31M Series A
    Led by Sandwater.

Public signal The timeline currently holds funding events, because those are the signals AfterRaise observes today. Hiring, leadership, expansion and product events join it with the signals layer.

What may happen next

What this raise could create

AfterRaise intelligenceNot a statement of fact

What may happen next

  • Commercial team build-out
  • Revenue leadership appointments
  • Accelerated hiring across functions
  • Repeatable go-to-market build

Opportunities this could create

  • Grid and utility partnerships
  • Industrial partnerships
  • Revenue leadership
  • Channel partners
  • Sales hiring

Based on the Energy & Climate sector, a Series A round and the priorities the company itself set out. Not a statement of fact.

Early momentum2 connected signals
  • 13 May 2026€31M Series A announced
  • 13 May 2026Stated priority: commercial growth

High momentum means several meaningful company changes have occurred in a short period. Signals here are funding events and the priorities the company stated; hiring, leadership and expansion detection join with the signals layer.

Open to

What Mantle8 is open to

Not yet specified

Mantle8 has not told AfterRaise which approaches it welcomes. Until it does, we do not assume. Offers to help are held and shown to the company, and the company decides whether to open a conversation.

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Opportunities

Ways to work with Mantle8

No open opportunities listed

Jobs, projects, partnerships, advisory and supplier needs appear here once the company has claimed its page and published them, and any role we read from its own job board appears automatically.

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Helpful contributors

People who have contributed here

Nobody yet

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Also moving

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