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Circu Li-ion

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Automated lithium-ion battery disassembly and diagnostics solutions

Mondercange, LuxembourgFounded 2021Transportation
Valuation $50–100M Last recorded · 2026
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Circu Li-ion and the history behind them.

About Circu Li-ion

Circu Li-ion is a European battery upcycling company founded in mid-2021 by childhood friends Antoine Welter (CEO) and Dr. Xavier Kohll (CTO). Welter, a former strategy consultant and angel investor, identified an opportunity in the battery recycling sector, while Dr. Kohll brought expertise in chemical and bioengineering from his PhD at ETH Zurich. They established the company to address the inefficiencies and waste in traditional lithium-ion battery recycling, where up to 80% of components were wasted after the first lifecycle.

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The company has developed a fully automated, machine learning-powered process that disassembles battery packs down to the individual cell level for detailed diagnostics. This technology allows for the evaluation of each cell's condition to determine its suitability for a second life, which can reduce CO2 emissions by up to 50% and recycling costs by 30%. Circu Li-ion operates a dual business model, offering both a Disassembly-as-a-Service at its facility in Karlsruhe, Germany, and a Machine-as-a-Service model. The latter, described as "the McDonald's of upcycling," allows clients like OEMs and recyclers to deploy the disassembly technology at their own sites.

The company's solutions cater to a wide range of industries, including electric vehicles (EVs), micro-mobility, power tools, and energy storage systems. Initially focusing on micro-mobility batteries from e-bikes and scooters to quickly develop its technology, the company has since expanded to handle batteries from power tools, cars, drones, and energy storage systems. Strategic partners include Amazon, Hyundai, and Daimler Truck. By creating a vast library of battery data, the firm enhances its AI-driven sorting and disassembly capabilities.

Circu Li-ion has secured significant funding to scale its operations. In October 2023, the company raised €8.5 million in a seed round, which included €4.5 million in equity led by BonVenture and €4 million in grants from the European Innovation Council (EIC) Accelerator. This funding supports the expansion of its production facility, the growth of its team, and the rollout of its services across Europe, with the ambitious goal of upcycling three billion batteries by 2035.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2021
Headquarters
Mondercange, Luxembourg
Employees
48
Open positions
16
Dealroom signal
86.6/100
Sub-industry
Clean Energy, Energy Storage, Waste Solution, Maintenance
Sector
Transportation, Sustainable Development Goals, EIC, EV Battery Recycling, EIC Fund, EV Battery
Technology
Artificial Intelligence, Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

8 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES A✓Equity / VC Feb 2026 $15M $62M EIT Urban Mobility · Geschwister Oetker · Flixfounders · Suma Capital ↗
SEED✓Equity / VC Oct 2023 $5M $20M BONVENTURE ↗
Showing the latest 2 of 8 recorded eventsBook a demo for the full funding history →

Growth signals

Circu Li-ion website traffic

Latest recorded traffic for Circu Li-ion is 40 monthly website visits, down 96% over the last three months. Circu Li-ion's team grew 26.3% over the past year.

Latest monthly visits40 3-month web change-96% 1-year team growth+26.3%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

14 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed4 investors entered at this stage

  • European Innovation Council
  • Luxinnovation
  • Ministry of the Economy Luxembourg
  • BONVENTURE

Series A6 investors entered at this stage

  • EIC Fund
  • EIT Urban Mobility
  • Suma Capital
  • HG Ventures
  • Geschwister Oetker
  • Flixfounders

Other known investors4 additional known investors

  • X2.0
  • Endless Frontier Labs
  • Paul Wurth InCub
  • Technoport
Team profiled 9 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
9 countries with
team presence
🇱🇺 Luxembourg55.1%
🇩🇪 Germany26.5%
🇬🇧 United Kingdom4.1%
🇫🇷 France4.1%
🇧🇪 Belgium2%
Top 5 of 9 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Circu Li-ion on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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