COMPANY PROFILE

LeydenJar Technologies

Ultra-thin pure-silicon anodes enabling batteries with much greater energy density, faster charging, and lower CO₂ output

Leiden, NetherlandsFounded 2016Defence

Valuation $250–500M Last recorded · 2026

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About LeydenJar Technologies

LeydenJar is a cutting-edge startup operating in the energy sector, specifically focusing on the development of high-energy density anodes for batteries. The company's primary goal is to create batteries that are not only smaller and lighter but also have fast charging capabilities. This innovative approach to battery technology has the potential to revolutionize various industries, including consumer electronics and mobility.

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The company's target market includes manufacturers of phones, laptops, and electric vehicles, among others. By offering batteries with increased capacity and reduced weight, LeydenJar aims to enhance the performance and efficiency of these devices. For instance, their batteries could enable longer flight times for drones and further driving distances for electric vehicles, all while reducing CO2 emissions.

LeydenJar operates on a B2B business model, partnering with manufacturers to integrate their advanced battery technology into various products. The company generates revenue by selling their high-energy density anodes to these manufacturers.

The startup is also actively seeking talented individuals to join their team. They offer a dynamic work environment where employees have the opportunity to contribute directly to the future of energy technology. The company's rapid growth and ambitious goals make it an exciting place for innovative minds looking to disrupt the market.

Source: Dealroom company data

At a glance

Status: Operational
Founded: 2016
Headquarters: Leiden, Netherlands
Employees: 86
Open positions: 2
Dealroom signal: 78.9/100
Sub-industry: Energy Efficiency, Energy Storage, Vehicle Production
Sector: Defence, Automotive, Lithium-Ion Batteries, Battery, Defence Applications, Spinout, Sustainable Development Goals
Technology: Hardware, Deep Tech, Nanotech
Business model: Manufacturing
Client focus: b2b
Links: Website LinkedIn X

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Funding history

10 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
LATE VC✓Equity / VC	Jan 2026	$8.6M	$321M	APG	↗
LATE VC✓Equity / VC	Sep 2025	$14M	$321M	Invest-NL · Extantia Capital	↗

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Growth signals

LeydenJar Technologies website traffic

Latest recorded traffic for LeydenJar Technologies is 4.4K monthly website visits, up 7.3% over the last three months. LeydenJar Technologies's team grew 4.9% over the past year.

Latest monthly visits4.4K 3-month web change+7.3% 1-year team growth+4.9%

Monthly website visitsNov 2019–Jul 2026

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Open positions

Openings linked to this company in Dealroom

Maintenance & Equipment Electrical EngineerEindhoven, Netherlands, Western Europe, Europe · Other · Jul 30, 2026 Looking for internship possibilities?Eindhoven, Netherlands, Western Europe, Europe · Marketing & Communication · Jul 23, 2026

2 distinct openings shownExplore hiring signals →

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NANAWAHInnovative, economically competitive, reliable and environmentally friendly Ultra-Fast Carbon battery and applied nanotechnology	Voiron, France	Closed
ADAddionicsProvides specialised improved rechargeable batteries by redesigning their electrode architecture	London, United Kingdom	Operational
FLFloatechFloatech is a European based high tech company specialized on developing silicon anodes for lithium-ion batteries	Getafe, Spain	Operational
NENexeonSilicon anode materials for higher energy density batteries	Milton, United Kingdom	Operational