# Neptune funding: rounds and investors

> Neptune has raised $4.0M across 2 rounds since 2024. Investors include Alumni Ventures, Flybridge and Floodgate. Every round with its source.

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

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

# Who invested in *Neptune*

2 rounds we have observed, with the 5 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.

Edtech Education Entertainment Financial Services

Raised 8 months ago

Funding summary Updated 26 Oct 2026

**$4.0M** raised across 2 rounds since 2024, from 2 sources

**$2.5M** Pre-seed **$1.5M** Seed

- **Latest round:** Seed, $1.5M Feb 2026
- **Biggest round:** $2.5M Pre-seed · Sept 2024
- **Investors:** 5

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.

2025 2026

**$2.5M** Pre-seed

**$1.5M** Seed

- **First round:** Pre-seed, $2.5M
- **Biggest round:** $2.5M
- **Between rounds:** 18 months

## The rounds

- **Feb 2026** Seed **$1.5M** *2 new* [Coşay Altuğ](https://millionrounds.com/fund/cosay-altug) [John Engle](https://millionrounds.com/fund/john-engle) Reported by Firms' own news pages
- **Sept 2024** Pre-seed **$2.5M** *3 new* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Flybridge](https://millionrounds.com/fund/flybridge) [Floodgate](https://millionrounds.com/fund/floodgate) 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.

**Pre-seed** 2024 **Seed** 2026 [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Flybridge](https://millionrounds.com/fund/flybridge) [Floodgate](https://millionrounds.com/fund/floodgate) [Coşay Altuğ](https://millionrounds.com/fund/cosay-altug) [John Engle](https://millionrounds.com/fund/john-engle)

## Everyone who backed them

[Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round

[Flybridge](https://millionrounds.com/fund/flybridge) VC firm **1** round

[Floodgate](https://millionrounds.com/fund/floodgate) VC firm **1** round

[Coşay Altuğ](https://millionrounds.com/fund/cosay-altug) VC firm **1** round

[John Engle](https://millionrounds.com/fund/john-engle) VC firm **1** round

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

## Quick answers about Neptune

### Who invested in Neptune?

Neptune's investors include Alumni Ventures, Flybridge, Floodgate, Coşay Altuğ and John Engle.

### How much has Neptune raised?

Neptune has raised $4.0M across 2 rounds since 2024.

### When did Neptune last raise?

Neptune's most recent round was a Seed of $1.5M in Feb 2026.

### What was Neptune's biggest round?

Neptune's largest round on record is $2.5M (Pre-seed), in Sept 2024.

### Who backed Neptune first?

Neptune's first round on record, in Sept 2024, was backed by Alumni Ventures, Flybridge and Floodgate.

### What stage is Neptune at?

Neptune's latest named round is a Seed, in Feb 2026.

### Where is Neptune based?

Neptune is based in Germany.

## Companies like Neptune

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)[**AAZZUR** $2.7M · Jan 2026](https://millionrounds.com/company/aazzur)

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