# NanoSieve funding: rounds and investors

> NanoSieve has raised $100K across 1 round since 2025. Investors include US Department of Energy and UNITED, Inc.. Every round with its source.

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

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

# Who invested in *NanoSieve*

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.

Cleantech

Funding summary Updated 26 Oct 2026

**$100K** raised across 1 round since 2025, from 1 source

- **Latest round:** Grant, $100K Sept 2025
- **Investors:** 2

See who backed them

## The rounds

- **Sept 2025** Grant **$100K** [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [UNITED, Inc.](https://millionrounds.com/fund/united) Source recorded

## Everyone who backed them

[US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round

[UNITED, Inc.](https://millionrounds.com/fund/united) Hedge fund **1** round

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

## Quick answers about NanoSieve

### Who invested in NanoSieve?

NanoSieve's investors include US Department of Energy and UNITED, Inc..

### How much has NanoSieve raised?

NanoSieve has raised $100K across 1 round since 2025.

### When did NanoSieve last raise?

NanoSieve's most recent round was a Grant of $100K in Sept 2025.

### What was NanoSieve's biggest round?

Its most recent round, $100K in Sept 2025, is also its largest on record.

### Who backed NanoSieve first?

NanoSieve's first round on record, in Sept 2025, was backed by US Department of Energy and UNITED, Inc..

### What stage is NanoSieve at?

NanoSieve's latest named round is a Grant, in Sept 2025.

### Where is NanoSieve based?

NanoSieve is based in the United States.

## Companies like NanoSieve

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)[**Renew** $207M · Oct 2026](https://millionrounds.com/company/renew)[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt)

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