# Erthos funding: rounds and investors

> Erthos has raised $4.8M across 1 round since 2023. Investors include Horizons Ventures and The51. Every round with its source.

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

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

# Who invested in *Erthos*

One round we have observed, with the 2 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.

Energy

Funding summary Updated 26 Oct 2026

**$4.8M** raised across 1 round since 2023, from 1 source

- **Latest round:** Series A, $4.8M Sept 2023
- **Investors:** 2

See who backed them

## The rounds

- **Sept 2023** Series A **$4.8M** [Horizons Ventures](https://millionrounds.com/fund/horizons-ventures) [The51](https://millionrounds.com/fund/the51) Source recorded SEC filing: $15M sold, first sale Aug 2023

## Founders and team

From Erthos's own website: 2 founders, 3 on the team.

**Visit Nuha Siddiqui** CEO and Co-founder

**Visit Kritika Tyagi** Head of Product and Co- founder

- **Visit Ayush Ranjan** Strategic Finance Associate
- **Visit Sireena Divecha** Operations Manager
- **Visit Xiuzheng Wang** R&D Testing Analyst

## Everyone who backed them

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

[The51](https://millionrounds.com/fund/the51) VC firm **1** round

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

## Quick answers about Erthos

### Who invested in Erthos?

Erthos's investors include Horizons Ventures and The51.

### How much has Erthos raised?

Erthos has raised $4.8M across 1 round since 2023.

### When did Erthos last raise?

Erthos's most recent round was a Series A of $4.8M in Sept 2023.

### What was Erthos's biggest round?

Its most recent round, $4.8M in Sept 2023, is also its largest on record.

### Who backed Erthos first?

Erthos's first round on record, in Sept 2023, was backed by Horizons Ventures and The51.

### What stage is Erthos at?

Erthos's latest named round is a Series A, in Sept 2023.

### Where is Erthos based?

Erthos is based in the United States.

## Companies like Erthos

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

[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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