Mantle8
mantle8.com
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Financials
Funding and backers
Total raised
$37.2M
2 rounds on record
Latest round
$33.5M
Series A · May 2026 · 5 mo ago
Team
3–5
French register · Dec 2024
The money's age
Fresh money
5 months since the last round · not hiring
Momentum
35/100
in the news, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jun 6
Launched Mantle8 launches Pyrenees natural hydrogen search after winning five-year permit · biofuelsdigest.com
May 13
Raised a round Series A $33.5M
Oct 12, 2025
Launched Mantle8 unveils breakthrough technology that accelerates hydrogen exploration · mantle8.com
Mar 3, 2025
Raised a round Seed $3.7M
2019
Founded
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series A | May 2026 | $33.5M | — | mantle8.com |
| Seed | Mar 2025 | $3.7M | — | mantle8.com |
Registers and programsofficial lists and records that name the company
| Legal entity | Mantle8 SASU | its site |
| Registered | 1 Jan 2019 |
Founders and leadersfrom filings, registers and the company's site
Emmanuel MasiniPrésident de SAScompany register
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News
企业Element One携手Mantle8推进加拿大西部天然氢勘探
来源：CHC氢能大会探索公司Element One和Mantle8计划共同评估和推进加拿大西部的天然氢潜在项目首先从不列颠哥伦比亚省和阿尔伯塔省开始根据双方签署的一份意向书LOIElement One将结合其区域勘探能力与Ma...
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Report
Element One and Mantle8 Sign Letter of Intent to Advance Natural Hydrogen Exploration in Western Canada
Proposed collaboration combines Mantle8
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Element One Hydrogen and Critical Minerals: Element One and Mantle8 Sign Letter of Intent to Advance Natural Hydrogen Exploration in Western Canada
Proposed collaboration combines Mantle8's proprietary hydrogen exploration platform with Element One's regional operating capabilities in British Columbia and AlbertaVancouver, British Columbia--(Newsfile
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Element One and Mantle8 Sign Letter of Intent to Advance Natural Hydrogen Exploration in Western Canada
Element One Hydrogen& Critical Minerals Corp. is pleased to announce that it has entered into a letter of intent with Mantle8 SAS, a Grenoble, France- based natural hydrogen exploration company, to evaluate and advance prospective natural hydrogen explora
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Mantle8 strengthens Mideast presence with Dubai headquarters
Mantle8, a natural hydrogen exploration company, has appointed Jean-Valery Garcia as Regional Director for the Middle East and opened its regional headquarters in Dubai, UAE
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Asmoen Adierazpena - Aralarko Baimenak
Asmoen Adierazpena - Aralarko Baimenak También disponible en español y English Grenoble, Frantzia - 2026ko abuztuaren 25a 2026ko ekainaren 5ean, Mantle8-ek Aralar I eta Aralar II esplorazio baimenak jaso zituen Espainiako Trantsizia Ekologikorako eta Erro
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Declaración de Intenciones - Permisos de Aralar
Declaration of Intent - Aralar Permits Also available in Basque and English Grenoble, France - August 25, 2026 On June 5, 2026, Mantle8 obtained the Aralar I and Aralar II exploration permits from the Spanish Ministry for Ecological Transition and the Dem
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Statement of Intent - Aralar Permits
Statement of Intent - Aralar Permits También disponible en español y euskera Grenoble, France - 25 August 2026 On 5 June 2026, Mantle8 was granted the Aralar I and Aralar II exploration permits by y the Spanish Ministry for the Ecological Transition and t
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Mantle8 secures Spanish permits, reinforcing Pyrenees as natural hydrogen hotspot
Spain grants permits covering approximately 960 km² across Navarra and the Basque Country for natural hydrogen and helium exploration Grenoble, France - 1 July 2026 - Mantle8, a natural hydrogen exploration company, has been granted two investigation perm
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People
Emmanuel Masini
Président de SAS
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Grenoble
France
HQ
Contact
31 Rue Aimé Requet, 38000 GRENOBLE