# siOPTICA funding: rounds and investors

> siOPTICA has raised $2.4M across 3 rounds since 2013. Investors include B Capital, High-Tech Gruenderfonds and HTGF High-Tech Gründerfonds.

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

Germany · [Venture startup](https://millionrounds.com/companies)

# Who invested in *siOPTICA*

3 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Financial Services

Funding summary Updated 26 Oct 2026

**$2.4M** raised across 3 rounds since 2013, from 3 sources

- **Latest round:** Venture, $2.4M Dec 2020
- **Investors:** 4

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2014 2015 2016 2017 2018 2019 2020

**?** Round

**?** Venture

**$2.4M** Venture

- **First round:** Round
- **Biggest round:** $2.4M
- **Usual gap between rounds:** 5.3 years

## The rounds

- **Dec 2020** Venture **$2.4M** *1 new* [B Capital](https://millionrounds.com/fund/b-capital) Source recorded
- **Sept 2015** Venture **Amount undisclosed** *1 new* [Constantia New Business](https://millionrounds.com/fund/constantia-new-business) From a historical funding record
- **Aug 2013** Round **Amount undisclosed** *2 new* [High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) [HTGF High-Tech Gründerfonds](https://millionrounds.com/fund/high-tech-grunderfonds-htgf) Reported by finsmes.com

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Round** 2013 **Venture** 2015 **Venture** 2020 [B Capital](https://millionrounds.com/fund/b-capital) [High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) [HTGF High-Tech Gründerfonds](https://millionrounds.com/fund/high-tech-grunderfonds-htgf) [Constantia New Business](https://millionrounds.com/fund/constantia-new-business)

## Everyone who backed them

[B Capital](https://millionrounds.com/fund/b-capital) VC firm **1** round

[High-Tech Gruenderfonds](https://millionrounds.com/fund/high-tech-gruenderfonds) VC firm **1** round

[HTGF High-Tech Gründerfonds](https://millionrounds.com/fund/high-tech-grunderfonds-htgf) VC firm **1** round

[Constantia New Business](https://millionrounds.com/fund/constantia-new-business) VC firm **1** round

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

## Quick answers about siOPTICA

### Who invested in siOPTICA?

siOPTICA's investors include B Capital, High-Tech Gruenderfonds, HTGF High-Tech Gründerfonds and Constantia New Business.

### How much has siOPTICA raised?

siOPTICA has raised $2.4M across 3 rounds since 2013. 2 rounds did not disclose an amount, so the total is a floor.

### When did siOPTICA last raise?

siOPTICA's most recent round was a Venture of $2.4M in Dec 2020.

### What was siOPTICA's biggest round?

Its most recent round, $2.4M in Dec 2020, is also its largest on record.

### Who backed siOPTICA first?

siOPTICA's first round on record, in Aug 2013, was backed by High-Tech Gruenderfonds and HTGF High-Tech Gründerfonds.

### What stage is siOPTICA at?

siOPTICA's latest named round is a Venture, in Dec 2020.

### Where is siOPTICA based?

siOPTICA is based in Germany.

## Companies like siOPTICA

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

[**Skalar** $14M · Jul 2026](https://millionrounds.com/company/skalar)[**getquin** $29M · May 2026](https://millionrounds.com/company/getquin)[**Talanx AG** $1.2B · Apr 2026](https://millionrounds.com/company/talanx-ag)[**Upvest** $320M · Mar 2026](https://millionrounds.com/company/upvest)[**DivTax** $1.2M · Mar 2026](https://millionrounds.com/company/divtax)[**Neptune** $4.0M · Feb 2026](https://millionrounds.com/company/neptune)

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