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COMPANY PROFILE

Carester

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European leader in sustainable rare-earth element (REE) recycling and separation

Lyon, FranceFounded 2019Energy
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Carester and the history behind them.

At a glance

Status
Operational
Founded
2019
Headquarters
Lyon, France
Employees
49
Open positions
7
Dealroom signal
92.0/100
Industry
Real Estate
Sub-industry
Water, Waste Solution, Construction
Sector
Energy, Recycling, Mining Technologies, Spinout, Sustainable Development Goals, Climate Tech, Circular Economy
Technology
Artificial Intelligence
Business model
Manufacturing, SaaS
Client focus
b2b
Links
WebsiteLinkedIn

Knowledge graph

News, research, reports and resources connected to this company by Dealroom

Funding history

4 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
GROWTH EQUITY NON VC✓Other financing Apr 2026 $0 — InfraVia Capital · USA Rare Earth ↗
GRANT✓Other financing May 2025 $117M — French Government —
Showing the latest 2 of 4 recorded eventsBook a demo for the full funding history →

Growth signals

Carester website traffic

Latest recorded traffic for Carester is 1.3K monthly website visits, down 81.9% over the last three months. Carester's team grew 58.1% over the past year.

Latest monthly visits1.3K 3-month web change-81.9% 1-year team growth+58.1%
Monthly website visitsFeb 2023–Jul 2026
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Summary metrics are public; monthly history is available with a demoCompare with peers →

Open positions

Openings linked to this company in Dealroom
Agent de maitrise de quart en industrie chimique F/HFrance, Western Europe, Europe · Accounting · Aug 10, 2026 Ingénieur système et réseaux IT/OT H/FFrance, Western Europe, Europe · Accounting · Aug 10, 2026 Automaticien SNCC H/FFrance, Western Europe, Europe · Other · Aug 10, 2026 Responsable système qualité H/FFrance, Western Europe, Europe · Accounting · Jul 27, 2026 Opérateur logistique F/HFrance, Western Europe, Europe · Logistics · Jul 27, 2026 Responsable laboratoire industrie H/FLacq, Nouvelle-Aquitaine, France · Human Resources · Jul 2, 2026 Chef d'équipe production H/FLyon, Cours Richard-Vitton, Montchat, 3rd Arrondissement, Lyon, Métropole de Lyon, Auvergne-Rhône-Alpes, Metropolitan France, 69003, France · Other · Jan 17, 2026
7 distinct openings shownExplore hiring signals →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
MagREEsourceOffering a green metallurgical solution through short loop recycling of NdFeB magnets, to secure the supply of Rare Earth permanent magnets to European High-tech industries Grenoble, France Operational 43 $31M $101M
NéolitheTransforms non-recyclable waste into mineral aggregates Chalonnes-sur-Loire, France Operational
BobineIndustrial process for recycling plastic waste into olefins Clermont-Ferrand, France Operational
RoSiOffering innovative solutions for recycling and revalorization of raw materials in the photovoltaic industry Seyssins, France Operational
CarbiosCreates a new generation of fully biodegradable plastics with a controlled lifespan, a process enabling infinite biorecycling of plastic waste Clermont-Ferrand, France Operational
Green CreativeThe commercialization of innovative products in the field of waste treatment. Sucy-en-Brie, France Operational
KeenatAshtrays, recycling of cigarette butts, surgical masks, chewing gums, CSR approaches, and waste management Talence, France Operational
MecawareWe meet the challenge of the circular economy by creating, valuing, and deploying eco-efficient industrial solutions Vénissieux, France Operational
Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

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

0 profiles shownExplore the complete relationship graph →

Investors

6 investors on the cap table

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

Seed1 investor entered at this stage

  • French Government

Series B and later2 investors entered at this stage

  • InfraVia Capital
  • USA Rare Earth

Other known investors3 additional known investors

  • French Alternative Energies and Atomic Energy Commission - CEA
  • Iwatani
  • TotalEnergies

Talent

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Team profiled 1 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 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
🇫🇷 France · Lyon HQ
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Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Carester 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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