Clear Sky
ClearSky is an innovative team using renewable energy and data to create tailored solutions for businesses.
est. 2021 · Enschede, The Netherlands
Flonium
Energy storage and renewable energy solutions
1 employees · est. 2015 · Fairfax, United States
Flonium is the older company (2021 vs 2015).
Side-by-Side Comparison
| Metric | Clear Sky | Flonium |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2015 older |
| Headquarters | ||
| Headquarters | Enschede, The Netherlands | Fairfax, United States |
| Employees | ||
| Employees | Not tracked yet | 1 |
| Industry | ||
| Industry | Cloud Infrastructure, Drones, Sustainability | Energy, Renewable Energy |
| Funding Stage | ||
| Funding Stage | Non Equity Assistance | Not tracked yet |
| Total Funding | ||
| Total Funding | Not tracked yet | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 1 | Not tracked yet |
| Services | ||
| Services | domain name registration, domain trading, advertising management | Energy Storage Units, Renewable Energy Solutions, Engineering Solutions, Energy Management and Monitoring, Backup Power Solutions |
| Target Customers | ||
| Target Customers | startups, entrepreneurs, online advertisers, businesses looking to purchase specific domains | Residential Customers, Commercial Enterprises, Industrial Clients, Electric Utilities, Renewable Energy Installers |
| Taxonomy | ||
| Taxonomy | Renewable Energy Solutions, Data-Driven Innovation, Resource Management, Integrated Data Architecture, Tailored Solutions, Industry 4.0, Carbon-Neutral Technology, UAV Platforms, Smart Aerial Modular Units, Sustainable Technology, Modular Platform, Long-Range UAVs, Green Technology, Efficient Energy Use | Advanced Batteries, Energy Storage Solutions, Renewable Energy Solutions, Battery-based Energy Storage, Solar Photovoltaic Solutions, Wind Energy Solutions, Microgrids, Energy Efficiency, Smart Grid, Electric Utilities, Containerized Energy Storage Units, Wall-mount Energy Storage Units, Engineering Services, Research & Development, Technology Development |
| Website | ||
| Website | clearskyuav.eu | flonium.com |
About Clear Sky
Founded in 2021 and headquartered in The Netherlands, ClearSky is positioning itself as a transformative force in the industries of Cloud Infrastructure, Drones, and Sustainability. With the slogan, "ClearSky is an innovative team using renewable energy and data to create tailored solutions for busi...
About Flonium
Flonium, operating from the picturesque region of Northern Virginia in the United States, is a forward-thinking company focused on energy storage and renewable energy solutions. Founded in 2015, the company has carved a niche in the energy sector, offering innovative battery-based energy-storage uni...
We will tell you when either one moves
BounceWatch watches Clear Sky and Flonium for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Clear Sky and Flonium — by email.
Frequently Asked Questions
Compare Clear Sky with someone else
Start typing a company name or domain.
Related Comparisons
Compiled from the BounceWatch company index. We last looked at Clear Sky on 7 Dec 2025, and Flonium on 5 Mar 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.