# Lumoptik funding: rounds and investors

> Lumoptik has raised $1.5M across 2 rounds since 2022. Investors include Keiretsu Capital. Every round with its source.

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

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

# Who invested in *Lumoptik*

2 rounds we have observed, with the one investor 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.

Healthcare

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$1.5M** raised across 2 rounds since 2022, from 2 sources

- **Latest round:** Venture, $1.5M Sept 2026
- **Investors:** 1

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.

2023 2024 2025 2026

**?** Venture

**$1.5M** Venture

- **First round:** Venture
- **Biggest round:** $1.5M
- **Between rounds:** 4.3 years

## The rounds

- **Sept 2026** Venture **$1.5M** *1 returning* [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded SEC filing: $1.5M sold
- **Jun 2022** Venture **Amount undisclosed** *1 new* [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded

## Everyone who backed them

[Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) VC firm **2** rounds

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

## Also claim to have backed them

This firm lists Lumoptik as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[iiM (Innovation in...](https://millionrounds.com/fund/iim-innovation-in) Angel network Per its own site

## Quick answers about Lumoptik

### Who invested in Lumoptik?

Lumoptik's investors include Keiretsu Capital.

### How much has Lumoptik raised?

Lumoptik has raised $1.5M across 2 rounds since 2022. One round did not disclose an amount, so the total is a floor.

### When did Lumoptik last raise?

Lumoptik's most recent round was a Venture of $1.5M in Sept 2026.

### What was Lumoptik's biggest round?

Its most recent round, $1.5M in Sept 2026, is also its largest on record.

### Who backed Lumoptik first?

Lumoptik's first round on record, in Jun 2022, was backed by Keiretsu Capital.

### What stage is Lumoptik at?

Lumoptik's latest named round is a Venture, in Sept 2026.

### Where is Lumoptik based?

Lumoptik is based in the United States.

## Companies like Lumoptik

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)

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