K
Koolboks
Provides solar-powered freezers and refrigeration solutions designed to offer reliable, off-grid cold storage for households and businesses
About Koolboks
Koolboks is a pioneering company that offers eco-friendly solar refrigeration solutions designed to meet the needs of domestic, commercial, and healthcare sectors. The company leverages its proprietary KoolTechnology, which combines solar energy and water to create efficient cooling systems. Koolboks' products are integrated with energy storage capabilities, utilizing both ICE batteries and Lithium batteries, ensuring uninterrupted service. Additionally, the company's refrigeration units come with a Pay-As-You-Go (PAYG) feature, allowing customers to pay in daily, weekly, or monthly installments, making it accessible for a wide range of clients. Koolboks operates in the renewable energy market, focusing on providing sustainable and cost-effective cooling solutions. The business model revolves around selling and leasing its refrigeration units, with revenue generated from both direct sales and PAYG subscriptions.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2018
- Headquarters
- Rosny-sous-Bois, France
- Employees
- 264
- Open positions
- 4
- Dealroom signal
- 89.7/100
- Industry
- Energy
- Sub-industry
- Clean Energy
- Sector
- Energy, Solar Energy, Sustainable Development Goals, Off-Grid, Climate Tech, Renewable Energy, Woman Founder, observatoire greentech, observatoire industrial tech
- Technology
- Hardware
- Business model
- Manufacturing
- Client focus
- b2b, b2c
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| DEBT✓Debt | Jul 2026 | $0 | — | Miller Center for Social Entrepreneurship · Beneficialreturns | ↗ |
| DEBT✓Debt | Jun 2026 | $1.4M | — | Cascador | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Koolboks is 16K monthly website visits, up 357.1% over the last three months. Koolboks's team grew 4.8% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed8 investors entered at this stage
Aruwa Capital
Acumen
Blue Earth Capital
All On
GSMA- POPowering Renewable Energy Opportunities
French Facility for Global Environment
Efficiency for Access
Series A1 investor entered at this stage
KawiSafi Ventures
Series B and later4 investors entered at this stage
Bpifrance
Cascador
Miller Center for Social Entrepreneurship
Beneficialreturns
Other known investors2 additional known investors
- SASAIS
GSMA Innovation Fund
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Koolboks 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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