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Koolboks

Energy · Rosny-sous-Bois, France · Founded 2018

Provides solar-powered freezers and refrigeration solutions designed to offer reliable, off-grid cold storage for households and businesses MoreLess

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.

Keywords: solar refrigeration, energy storage, ICE batteries, Lithium batteries, PAYG, eco-friendly, domestic use, commercial use, healthcare, KoolTechnology.

Company overview

Koolboks company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2018
Headquarters
Rosny-sous-Bois, France
Employees
264
Open positions
4
Dealroom signal
89.7
client focusb2bclient focusb2ctechnologyHardwaresub industryClean Energybusiness modelManufacturingsectorSolar EnergysectorSustainable Development GoalssectorOff-GridsectorClimate TechsectorRenewable EnergysectorWoman Foundersectorobservatoire greentechsectorobservatoire industrial techindustryEnergy

Valuation & funding

Koolboks funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
DEBTDebt Jul 2026 $0 Miller Center for Social Entrepreneurship · Beneficialreturns
DEBTDebt Jun 2026 $1.4M Cascador
GRANTOther financing Aug 2025 $0 Powering Renewable Energy Opportunities · French Facility for Global Environment · Efficiency for Access
DEBTDebt Aug 2025 $2.2M Bpifrance · French Facility for Global Environment
SERIES AEquity / VC Aug 2025 $8.8M $35M All On · Aruwa Capital · KawiSafi Ventures
OtherOther financing Feb 2023 SAIS
SEEDEquity / VC Aug 2022 Blue Earth Capital · All On · Aruwa Capital · GSMA
SEEDEquity / VC Jan 2022 Acumen · Aruwa Capital · Blue Earth Capital
Showing 8 recorded eventsUnlock the complete deal history →

Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthProfitMargin
2026 $72K 0% −$114K -159%
2025 $72K 0% −$114K -159%
2024 $72K 0% −$114K -159%
2023 $72K 0%
2022 $72K 0%
2021 $72K 0%
2020 $72K
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Koolboks website traffic

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.

Latest monthly visits16K 3-month web change+357.1% 1-year team growth+4.8%
Monthly website visits46 observations · Oct 2022–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

Koolboks compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Talent graph

Koolboks's talent

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Team profiled 8 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.

Investors

15 investors on Koolboks's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 8 investors entered at this stage
Aruwa Capital
Acumen
Blue Earth Capital
All On
GSMA
Powering Renewable Energy Opportunities
French Facility for Global Environment
Efficiency for Access
Series A 1 investor entered at this stage
KawiSafi Ventures
Series B+ 4 investors entered at this stage
Bpifrance
Cascador
Miller Center for Social Entrepreneurship
Beneficialreturns
Other known 2 additional known investors
SAIS
GSMA Innovation Fund

Global footprint

Where Koolboks has talent and traffic

Workforce by country
9 countries with
team presence
🇳🇬 Nigeria90.2%
🇫🇷 France3.7%
🇰🇪 Kenya1.8%
🇺🇸 United States1.2%
🇿🇦 South Africa0.6%
Top 5 of 9 shown

In the news

Latest news about Koolboks

Recent press, funding announcements, and product moves mentioning Koolboks — open to read from the original sources.

See all news

Market sentiment

What the market is saying about Koolboks

An AI-synthesized read of the highest-engagement posts about Koolboks on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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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