# 4D Avionic Systems funding: rounds and investors

> 4D Avionic Systems has raised $256K across 1 round since 2021. Investors include National Science Foundation. Every round with its source.

Source: https://millionrounds.com/company/4d-avionic-systems (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *4D Avionic Systems*

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.

Aerospace & Space

Funding summary Updated 26 Oct 2026

**$256K** raised across 1 round since 2021, from 1 source

- **Latest round:** Grant, $256K Dec 2021
- **Investors:** 1

See who backed them

## The rounds

- **Dec 2021** Grant **$256K** [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Source recorded

## Everyone who backed them

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=4d-avionic-systems).

## Quick answers about 4D Avionic Systems

### Who invested in 4D Avionic Systems?

4D Avionic Systems's investors include National Science Foundation.

### How much has 4D Avionic Systems raised?

4D Avionic Systems has raised $256K across 1 round since 2021.

### When did 4D Avionic Systems last raise?

4D Avionic Systems's most recent round was a Grant of $256K in Dec 2021.

### What was 4D Avionic Systems's biggest round?

Its most recent round, $256K in Dec 2021, is also its largest on record.

### Who backed 4D Avionic Systems first?

4D Avionic Systems's first round on record, in Dec 2021, was backed by National Science Foundation.

### What stage is 4D Avionic Systems at?

4D Avionic Systems's latest named round is a Grant, in Dec 2021.

### Where is 4D Avionic Systems based?

4D Avionic Systems is based in the United States.

## Companies like 4D Avionic Systems

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

[**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**Apex** $1.1B · Oct 2026](https://millionrounds.com/company/apex)[**Xona** $512M · Oct 2026](https://millionrounds.com/company/xona)[**Jeevy Fabrication** Oct 2026](https://millionrounds.com/company/jeevy-fabrication)[**Varda Space Industries** $438M · Oct 2026](https://millionrounds.com/company/varda-space-industries)[**Kapta Space** $29M · Oct 2026](https://millionrounds.com/company/kapta-space)

## Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app