# Aether funding: rounds and investors

> Aether has raised $5.7M across 4 rounds since 2022. Investors include Y Combinator, Collaborative Fund and Icehouse Ventures. Every round with its source.

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

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

# Who invested in *Aether*

4 rounds we have observed, with the 8 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.

AI Martech SaaS

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Funding summary Updated 5 Nov 2026

**$5.7M** raised across 4 rounds since 2022, from 4 sources

**$500K** Series A **$500K** Seed **$2.5M** Seed **$2.2M** Seed

- **Latest round:** Seed, $2.2M Aug 2025
- **Biggest round:** $2.5M Seed · Apr 2024
- **Investors:** 8

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

**$500K** Series A

**$500K** Seed

**$2.5M** Seed

**$2.2M** Seed

- **First round:** Series A, $500K
- **Biggest round:** $2.5M
- **Usual gap between rounds:** 17 months

[**Aether** AI 1 / 15 Their pitch deck **Aether's pitch deck, 15 slides** Each slide read for what it argues, against the decks that raised at the same stage.](https://millionrounds.com/decks/aether)

## The rounds

- **Aug 2025** Seed **$2.2M** *3 new* [Icehouse Ventures](https://millionrounds.com/fund/icehouse-ventures) [SE Ventures](https://millionrounds.com/fund/se-ventures) [Brand Fund 2](https://millionrounds.com/fund/brand-fund-2) Reported by Startup Daily SEC filing: $1.2M sold, first sale Jul 2024
- **Apr 2024** Seed **$2.5M** *2 new* *1 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Amino Capital](https://millionrounds.com/fund/amino-capital) Source recorded
- **Nov 2022** Seed **$500K** *1 new* *1 returning* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Startuplab](https://millionrounds.com/fund/startuplab) Source recorded
- **Jul 2022** Series A **$500K** *2 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Kevin Hartz](https://millionrounds.com/fund/a-star-co) Source recorded

## Founders and team

From Aether's own website: 3 founders.

**Ursula von Keisenberg** Acting CEO & CO Founder

**Rosanna Dedecius** Head of Customer & Co Founder

**Daniel Alexander** CRO & Co Founder

## 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.

**Series A** 2022 **Seed** 2022 **Seed** 2024 **Seed** 2025 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) [Icehouse Ventures](https://millionrounds.com/fund/icehouse-ventures) [Amino Capital](https://millionrounds.com/fund/amino-capital) [SE Ventures](https://millionrounds.com/fund/se-ventures) [Kevin Hartz](https://millionrounds.com/fund/a-star-co) [Startuplab](https://millionrounds.com/fund/startuplab) [Brand Fund 2](https://millionrounds.com/fund/brand-fund-2)

## Everyone who backed them

[Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **3** rounds

[Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) VC firm **1** round

[Icehouse Ventures](https://millionrounds.com/fund/icehouse-ventures) VC firm **1** round

[Amino Capital](https://millionrounds.com/fund/amino-capital) Accelerator **1** round

[SE Ventures](https://millionrounds.com/fund/se-ventures) Corporate VC **1** round

[Kevin Hartz](https://millionrounds.com/fund/a-star-co) VC firm **1** round

[Startuplab](https://millionrounds.com/fund/startuplab) Accelerator **1** round

[Brand Fund 2](https://millionrounds.com/fund/brand-fund-2) VC firm **1** round

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

## Quick answers about Aether

### Who invested in Aether?

Aether's investors include Y Combinator, Collaborative Fund, Icehouse Ventures, Amino Capital and SE Ventures, and 3 more on record.

### How much has Aether raised?

Aether has raised $5.7M across 4 rounds since 2022.

### When did Aether last raise?

Aether's most recent round was a Seed of $2.2M in Aug 2025.

### What was Aether's biggest round?

Aether's largest round on record is $2.5M (Seed), in Apr 2024.

### Who backed Aether first?

Aether's first round on record, in Jul 2022, was backed by Y Combinator and Kevin Hartz.

### What stage is Aether at?

Aether's latest named round is a Seed, in Aug 2025.

### Where is Aether based?

Aether is based in the United States.

## Companies like Aether

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

[**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**e2e** $8.0M · Nov 2026](https://millionrounds.com/company/e2e)[**Agrani Labs** $123M · Nov 2026](https://millionrounds.com/company/agrani-labs)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)

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