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↑Linkener €7.5M funding round led by Klima Energy Transition Fund (Alantra) ↑CoComply €2.3M funding round led by NPIF II - Mercia Equity Finance ↑Vessla €3.0M Pre-seed round led by Seedcamp ↑Neonomics €3.6M raises a funding round ↑unravel health €3.0M Pre-seed round led by Conduit EIS Impact Fund ↑Microbiotica €42.7M Series C round led by British Business Bank ↑Elevatry €3M raises a Pre-seed round ↑OMass Therapeutics €276.1M Series C round led by Bain Capital Life Sciences ↑Goodweek €10.7M funding round led by Adara Ventures ↑Qilimanjaro Quantum Tech €19.6M raises a Series A round ↑Ambio €5.1M Seed round led by Lifeline Ventures ↑Duvo €28.5M Series A round led by Balderton Capital ↑Salience Labs €111.4M Series B round led by Bullhound Capital ↑Wavo €10M funding round led by Eurazeo ↑Cofrai €2.6M funding round led by DFF Ventures ↑Undecimal Bio €16M Seed round led by 4BIO Capital ↑Obsero €1M Seed round led by SFC Capital ↑ParkMundo €2.3M Seed round led by Rabobank ↑Ubitium €12.5M Seed round led by Ibex Investors ↑Alchera Technologies €3.2M Seed round led by Maven Capital Partners
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LeydenJar

Growth · Leiden, Netherlands

Pure silicon anode technology that substantially raises lithium-ion energy density

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€7,800,000
Total raised
-
Valuation
88
Employees
2016
Founded

LeydenJar deposits a 100 percent silicon anode using plasma vapour deposition, lifting cell energy density well above graphite designs. Battery cell manufacturers and automotive and consumer electronics customers are its target.

Latest round

Equity - January 1, 2026

Equity - €7,800,000

January 1, 2026
ABP (via APG)

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