# Antimatter Systems funding: rounds and investors

> Antimatter Systems has raised $1.2M across 1 round since 2023. Investors include Haystack, Balaji Srinivasan and Compound. Every round with its source.

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

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

# Who invested in *Antimatter Systems*

One round we have observed, with the 5 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Education

Funding summary Updated 26 Oct 2026

**$1.2M** raised across 1 round since 2023, from 1 source

- **Latest round:** Seed, $1.2M Jan 2023
- **Investors:** 5

See who backed them

## The rounds

- **Jan 2023** Seed **$1.2M** [Haystack](https://millionrounds.com/fund/haystack) [Balaji Srinivasan](https://millionrounds.com/fund/balaji-srinivasan) [Compound](https://millionrounds.com/fund/compound-4) [Scott Belsky](https://millionrounds.com/fund/scott-belsky) [Spacecadet](https://millionrounds.com/fund/spacecadet) Source recorded

## Everyone who backed them

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

[Balaji Srinivasan](https://millionrounds.com/fund/balaji-srinivasan) VC firm **1** round

[Compound](https://millionrounds.com/fund/compound-4) VC firm **1** round

[Scott Belsky](https://millionrounds.com/fund/scott-belsky) Angel **1** round

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

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

## Quick answers about Antimatter Systems

### Who invested in Antimatter Systems?

Antimatter Systems's investors include Haystack, Balaji Srinivasan, Compound, Scott Belsky and Spacecadet.

### How much has Antimatter Systems raised?

Antimatter Systems has raised $1.2M across 1 round since 2023.

### When did Antimatter Systems last raise?

Antimatter Systems's most recent round was a Seed of $1.2M in Jan 2023.

### What was Antimatter Systems's biggest round?

Its most recent round, $1.2M in Jan 2023, is also its largest on record.

### Who backed Antimatter Systems first?

Antimatter Systems's first round on record, in Jan 2023, was backed by Haystack, Balaji Srinivasan and Compound and 2 others.

### What stage is Antimatter Systems at?

Antimatter Systems's latest named round is a Seed, in Jan 2023.

### Where is Antimatter Systems based?

Antimatter Systems is based in the United States.

## Companies like Antimatter Systems

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

[**Sharp Performance** $30M · Oct 2026](https://millionrounds.com/company/sharp-performance)[**Clasp** $28M · Oct 2026](https://millionrounds.com/company/clasp)[**Scholar Education** $4.0M · Oct 2026](https://millionrounds.com/company/scholar-education)[**Snorkel AI** $350M · Sept 2026](https://millionrounds.com/company/snorkel-ai)[**Positron** $732M · Sept 2026](https://millionrounds.com/company/positron)[**Wild Zebra** $8.0M · Aug 2026](https://millionrounds.com/company/wild-zebra)

## Find investors like these

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