HHotta
Hotta (formerly Therminer) is a Spanish climate-tech/energy startup that builds modular edge data centres which double as heating systems: servers are integrated into 'computational boilers' that recover up to ~96% of the energy consumed as hot water and heating for hotels, residential buildings, heated pools, sports centres and wellness facilities, sold as a zero-upfront-investment energy service. Founded in 2021 by two engineers who started in a garage in a Soria village, it is at Seed stage and has raised a strategic round from corporate and VC backers including Domusa Teknik, MONDRAGON, Fluidra Ventures, Faraday Venture Partners and Soria Emprende; it was named one of Spain's 'Top 101' most innovative companies and is part of Santander X 100. It has a Valencia presence via Startup Valencia/UPV programmes.
Founders
Global models 5
D
Q
C
L
SIn the same niche 25 others
See all in the Start-ups Map →Notes: Most funded first
Investors 9
Open as list →
F
M
C
D
F
C
EFunding rounds 1
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2026-02-05 | Seed | — |
Lead not disclosed
+5 more
|
News 1
Open as list →| Published | Article |
|---|---|
| 2026-02-23 |
Domusa Teknik and MONDRAGON invest in Hotta, transforming waste heat into comfort ↗
Capital-Riesgo.es
2026-02-23 |



