LeydenJar
Last verified 2026-05-05. JSON
The funding figures on this page are attributed, not sourced: a publisher is on record but no document URL is. How we mark provenance.
| Total raised | $89.6Mattributed |
|---|---|
| Latest round | strategic, $14.0M, 2025-09-01attributed |
| Founded | 2016 |
| Headquarters | Leiden |
| Industry | climate |
| Stage | series-b+ |
| Website | leyden-jar.com |
100% silicon anode (Silyte) for lithium-ion batteries; 50%+ higher energy density
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2025-09-01 | strategic | $14.0M | undisclosed |
Detected tech stack
Nginx, WordPress 6.9.4, Yoast SEO 27.2, Google Analytics, Google Tag Manager, GSAP 3.15.0, jQuery Migrate 3.4.1, DoubleClick Floodlight, HubSpot, React, PHP, MySQL
Provenance
| Fact | Status | Basis |
|---|---|---|
| Strategic, $14.0M | attributed | eu-startups named as publisher. No document URL on file. |
| Total raised $89.6M | attributed | eu-startups named as publisher. No document URL on file. |
| Company existence | self-reported | leyden-jar.com, read 2026-05-05 |
| Description | self-reported | leyden-jar.com, read 2026-05-05 |
Nothing on this page is sourced yet. A sourced fact links to a document that states it.
Change history
No change recorded since records began on 2026-09-24.