# HySun funding: rounds and investors

> HySun has raised $3.5M across 1 round since 2025. Investors include EIT InnoEnergy and Axon Partners Group. Every round with its source.

Source: https://millionrounds.com/company/hysun (Millionrounds; every figure on the page links to its filing or article)

Spain · [Seed startup](https://millionrounds.com/companies)

# Who invested in *HySun*

One round we have observed, with the 2 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Cleantech

Funding summary Updated 26 Oct 2026

**$3.5M** raised across 1 round since 2025, from 1 source

- **Latest round:** Seed, $3.5M Oct 2025
- **Investors:** 2

See who backed them

## The rounds

- **Oct 2025** Seed **$3.5M** [EIT InnoEnergy](https://millionrounds.com/fund/innoenergy) [Axon Partners Group](https://millionrounds.com/fund/axon-partners-group) Source recorded

## Founders and team

From HySun's own website: 11 on the team.

- **David Buceta** CEO & CTO
- **Tatiana López** CEO
- **Marco Carrascosa** Head of Engineering
- **Alba Fombona** R&D Engineer
- **Carlos Chirinos Chavez** R&D Engineer
- **Carlos Rodríguez** Bussiness Development Director
- **Egoitz San Miguel** Energy Director
- **Iria Rodríguez Arias** R&D Director
- **Luis Villalba** R&D Director
- **Miriam El Tawil Lucas** R&D Engineer
- **Álvaro Eguiluz** R&D Director

## Everyone who backed them

[EIT InnoEnergy](https://millionrounds.com/fund/innoenergy) VC firm **1** round

[Axon Partners Group](https://millionrounds.com/fund/axon-partners-group) Corporate VC **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=hysun).

## Quick answers about HySun

### Who invested in HySun?

HySun's investors include EIT InnoEnergy and Axon Partners Group.

### How much has HySun raised?

HySun has raised $3.5M across 1 round since 2025.

### When did HySun last raise?

HySun's most recent round was a Seed of $3.5M in Oct 2025.

### What was HySun's biggest round?

Its most recent round, $3.5M in Oct 2025, is also its largest on record.

### Who backed HySun first?

HySun's first round on record, in Oct 2025, was backed by EIT InnoEnergy and Axon Partners Group.

### What stage is HySun at?

HySun's latest named round is a Seed, in Oct 2025.

### Where is HySun based?

HySun is based in Spain.

## Companies like HySun

In the same sector, and raised in the last eighteen months.

[**HVR Energy** $23M · Sept 2026](https://millionrounds.com/company/hvr-energy)[**X1 Wind** $9.6M · Jul 2026](https://millionrounds.com/company/x1-wind)[**XFuel** $41M · May 2026](https://millionrounds.com/company/xfuel)[**bound4blue** $44M · Dec 2025](https://millionrounds.com/company/bound4blue)[**Ingelia** $791K · Sept 2025](https://millionrounds.com/company/ingelia)[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app