Side-by-Side Comparison
| Metric | GREENDUR | Sunamp |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2006 older |
| Headquarters | ||
| Headquarters | Spain | Edinburgh, United Kingdom |
| Employees | ||
| Employees | 6 | 72 larger |
| Industry | ||
| Industry | Energy, Manufacturing, Renewable Energy | Energy, Renewable Energy, Automotive |
| Funding Stage | ||
| Funding Stage | Seed | Grant |
| Total Funding | ||
| Total Funding | $112.50K | $33.96M |
| Funding Rounds | ||
| Funding Rounds | 1 | 12 |
| Services | ||
| Services | Not tracked yet | Designing and manufacturing thermal energy storage solutions, Decarbonising hot water and heating systems, Optimising renewable energy use, Providing low-carbon cooling technologies |
| Target Customers | ||
| Target Customers | Not tracked yet | Public housing authorities, Commercial businesses, Industrial facilities, Government and community organizations, Housing developers, Specifiers, installers and stockists |
| Taxonomy | ||
| Taxonomy | DecarbonizationIndustrial HeatThermal BatteryClean Energy StorageCarbon Footprint ReductionScope 1 Emissions +8 | Thermal Energy StoragePhase Change MaterialsHeat Battery SystemsRenewable Energy IntegrationDecarbonizationLow Carbon Technology +9 |
| Website | ||
| Website | greendur.com | sunamp.com |
About GREENDUR
GREENDUR, founded in 2020 and headquartered in Spain, is a promising player in the energy sector, primarily focusing on decarbonizing industrial heat. The company’s innovative approach centers around its thermal battery technology, which efficiently stores clean energy as heat and supplies it to ind...
About Sunamp
Sunamp, founded in 2006, is at the forefront of creating innovative, space-saving thermal storage solutions that leverage patented phase change materials to promote energy efficiency and sustainability in homes and buildings. Based in the United Kingdom, the company is revolutionizing the global app...
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Compiled from the BounceWatch company index. We last looked at GREENDUR on 18 Aug 2025, and Sunamp on 31 May 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.
