# OtoNexus Medical Technologies Inc. funding: rounds and investors

> OtoNexus Medical Technologies Inc. has raised $1.4M across 2 rounds since 2021. Investors include National Science Foundation, Tech Coast Angels and Portfolia.

Source: https://millionrounds.com/company/otonexus-medical-technologies-inc (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *OtoNexus Medical Technologies Inc.*

2 rounds we have observed, with the 6 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.

Healthcare

Funding summary Updated 26 Oct 2026

**$1.4M** raised across 2 rounds since 2021, from 2 sources

- **Latest round:** Venture, $1.4M Jan 2023
- **Investors:** 6

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.

2021 2022 2023

**?** Venture

**$1.4M** Venture

- **First round:** Venture
- **Biggest round:** $1.4M
- **Between rounds:** 2 years

## The rounds

- **Jan 2023** Venture **$1.4M** *1 new* *4 returning* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) [Golden Seeds](https://millionrounds.com/fund/golden-seeds) [Portfolia](https://millionrounds.com/fund/portfolia) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded SEC filing: $3.5M sold, first sale Oct 2022
- **Jan 2021** Venture **Amount undisclosed** *5 new* [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Portfolia](https://millionrounds.com/fund/portfolia) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) Source recorded

## 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.

**Venture** 2021 **Venture** 2023 [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) [Portfolia](https://millionrounds.com/fund/portfolia) [Keiretsu Capital](https://millionrounds.com/fund/keiretsu-capital) [Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) [Golden Seeds](https://millionrounds.com/fund/golden-seeds)

## Everyone who backed them

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **2** rounds

[Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) VC firm **2** rounds

[Portfolia](https://millionrounds.com/fund/portfolia) VC firm **2** rounds

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

[Keiretsu Forum](https://millionrounds.com/fund/keiretsu-forum) Angel network **1** round

[Golden Seeds](https://millionrounds.com/fund/golden-seeds) Angel network **1** round

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

## Quick answers about OtoNexus Medical Technologies Inc.

### Who invested in OtoNexus Medical Technologies Inc.?

OtoNexus Medical Technologies Inc.'s investors include National Science Foundation, Tech Coast Angels, Portfolia, Keiretsu Capital and Keiretsu Forum, and 1 more on record.

### How much has OtoNexus Medical Technologies Inc. raised?

OtoNexus Medical Technologies Inc. has raised $1.4M across 2 rounds since 2021. One round did not disclose an amount, so the total is a floor.

### When did OtoNexus Medical Technologies Inc. last raise?

OtoNexus Medical Technologies Inc.'s most recent round was a Venture of $1.4M in Jan 2023.

### What was OtoNexus Medical Technologies Inc.'s biggest round?

Its most recent round, $1.4M in Jan 2023, is also its largest on record.

### Who backed OtoNexus Medical Technologies Inc. first?

OtoNexus Medical Technologies Inc.'s first round on record, in Jan 2021, was backed by National Science Foundation, Tech Coast Angels and Keiretsu Forum and 2 others.

### What stage is OtoNexus Medical Technologies Inc. at?

OtoNexus Medical Technologies Inc.'s latest named round is a Venture, in Jan 2023.

### Where is OtoNexus Medical Technologies Inc. based?

OtoNexus Medical Technologies Inc. is based in the United States.

## Companies like OtoNexus Medical Technologies Inc.

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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