# Light funding: rounds and investors

> Light has raised $80M across 3 rounds since 2025. Investors include Spark Capital, Matrix and Andreessen Horowitz. Every round with its source.

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

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

# Who invested in *Light*

3 rounds we have observed, with the 22 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Consumer Apps Cleantech Developer Tools Energy

Raised 2 months ago

Follow Light and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Flight)

Funding summary Updated 5 Nov 2026

**$80M** raised across 3 rounds since 2025, from 5 sources

**$30M** Series A **$4.0M** Debt **$46M** Series A

- **Latest round:** Series A, $46M Sept 2026
- **Led by:** Matrix
- **Step-up i:** 11.5×
- **Investors:** 22 (1 led)

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

**$30M** Series A

**$4.0M** Debt

**$46M** Series A

- **First round:** Series A, $30M
- **Biggest round:** $46M
- **Usual gap between rounds:** 9 months

## The rounds

- **Sept 2026** Series A **$46M** *11 new* *1 returning* [Matrix](https://millionrounds.com/fund/matrix) Lead [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [BoxGroup](https://millionrounds.com/fund/boxgroup) [8VC](https://millionrounds.com/fund/8vc) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Coatue](https://millionrounds.com/fund/coatue-management) [Mischief](https://millionrounds.com/fund/mischief) [MCJ](https://millionrounds.com/fund/mcj) [Gigascale Capital](https://millionrounds.com/fund/gigascale-capital) [Activate Capital](https://millionrounds.com/fund/activate-capital) Reported by TechStartups and 1 other
- **Dec 2025** Debt **$4.0M** *4 new* [SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) [Spiral Capital](https://millionrounds.com/fund/spiral-capital) [Aozora Corporate Investment](https://millionrounds.com/fund/aozora-corporate-investment) [Hyperithm](https://millionrounds.com/fund/hyperithm) Source recorded
- **Sept 2025** Series A **$30M** *7 new* [Seedcamp](https://millionrounds.com/fund/seedcamp) [Spark Capital](https://millionrounds.com/fund/spark-capital) [Balderton Capital](https://millionrounds.com/fund/balderton-capital) [Fidelity](https://millionrounds.com/fund/fidelity) [Atomico](https://millionrounds.com/fund/atomico) [Cherry Ventures](https://millionrounds.com/fund/cherry-ventures) [Lockheed Martin](https://millionrounds.com/fund/lockheed-martin-ventures) Source recorded and 1 other

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Series A** 2025 **Debt** 2025 **Series A** 2026 [Spark Capital](https://millionrounds.com/fund/spark-capital) [Matrix](https://millionrounds.com/fund/matrix) L [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) [BoxGroup](https://millionrounds.com/fund/boxgroup) [Seedcamp](https://millionrounds.com/fund/seedcamp) [8VC](https://millionrounds.com/fund/8vc) [SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) [Coatue](https://millionrounds.com/fund/coatue-management)

## Everyone who backed them

[Spark Capital](https://millionrounds.com/fund/spark-capital) VC firm **2** rounds

[Matrix](https://millionrounds.com/fund/matrix) Hedge fund **1** round, led 1

[Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round

[Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round

[Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **1** round

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

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

[8VC](https://millionrounds.com/fund/8vc) VC firm **1** round

[SMBC Venture Capital](https://millionrounds.com/fund/smbc-venture-capital-2) Investment bank **1** round

[Coatue](https://millionrounds.com/fund/coatue-management) VC firm **1** round

[Balderton Capital](https://millionrounds.com/fund/balderton-capital) VC firm **1** round

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

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

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

[Lockheed Martin](https://millionrounds.com/fund/lockheed-martin-ventures) Corporate VC **1** round

[Spiral Capital](https://millionrounds.com/fund/spiral-capital) VC firm **1** round

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

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

[Aozora Corporate Investment](https://millionrounds.com/fund/aozora-corporate-investment) Private equity **1** round

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

[Gigascale Capital](https://millionrounds.com/fund/gigascale-capital) VC firm **1** round

[Activate Capital](https://millionrounds.com/fund/activate-capital) VC firm **1** round

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

## Also claim to have backed them

This firm lists Light as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

[COMPANION Capital GmbH](https://millionrounds.com/fund/companion-m) Angel network Per its own site

## Quick answers about Light

### Who invested in Light?

Light's investors include Spark Capital, Matrix, Andreessen Horowitz, Alumni Ventures and Lightspeed Venture Partners, and 17 more on record. Matrix led its latest round.

### How much has Light raised?

Light has raised $80M across 3 rounds since 2025.

### When did Light last raise?

Light's most recent round was a Series A of $46M in Sept 2026, led by Matrix.

### What was Light's biggest round?

Its most recent round, $46M in Sept 2026, is also its largest on record.

### Who backed Light first?

Light's first round on record, in Sept 2025, was backed by Seedcamp, Spark Capital and Balderton Capital and 4 others.

### What stage is Light at?

Light's latest named round is a Series A, in Sept 2026.

### Where is Light based?

Light is based in the United States.

### Who led Light's rounds?

Matrix led the Series A in 2026.

## Companies like Light

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

[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**e2e** $8.0M · Nov 2026](https://millionrounds.com/company/e2e)[**Guava** $13M · Nov 2026](https://millionrounds.com/company/guava)[**Omni** $244M · Nov 2026](https://millionrounds.com/company/omni)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)[**Fal** $1.4B · Nov 2026](https://millionrounds.com/company/fal)

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