# ESUN funding: rounds and investors

> ESUN has raised $3.0M across 1 round since 2019. Investors include Plum Ventures. Every round with its source.

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

[Pre-seed startup](https://millionrounds.com/companies)

# Who invested in *ESUN*

One round we have observed, with the one investor 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.

Hardware & Electronics

Funding summary Updated 26 Oct 2026

**$3.0M** raised across 1 round since 2019, from 1 source

- **Latest round:** Pre-seed, $3.0M Feb 2019
- **Investors:** 1

See who backed them

## The rounds

- **Feb 2019** Pre-seed **$3.0M** [Plum Ventures](https://millionrounds.com/fund/plum-ventures) Source recorded

## Everyone who backed them

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

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

## Quick answers about ESUN

### Who invested in ESUN?

ESUN's investors include Plum Ventures.

### How much has ESUN raised?

ESUN has raised $3.0M across 1 round since 2019.

### When did ESUN last raise?

ESUN's most recent round was a Pre-seed of $3.0M in Feb 2019.

### What was ESUN's biggest round?

Its most recent round, $3.0M in Feb 2019, is also its largest on record.

### Who backed ESUN first?

ESUN's first round on record, in Feb 2019, was backed by Plum Ventures.

### What stage is ESUN at?

ESUN's latest named round is a Pre-seed, in Feb 2019.

## Companies like ESUN

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

[**Positron AI** $875M · Sept 2026](https://millionrounds.com/company/positron-ai)[**TYLsemi** $43M · Jul 2026](https://millionrounds.com/company/tylsemi)[**OXMIQ Labs** $35M · Jul 2026](https://millionrounds.com/company/oxmiq-labs)[**Laser Link** $73M · Mar 2026](https://millionrounds.com/company/laser-link)[**PaXini Tech** $145M · Mar 2026](https://millionrounds.com/company/paxini-tech)[**Home Essentials** $7.7M · Feb 2026](https://millionrounds.com/company/home-essentials)

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