# Flair funding: rounds and investors

> Flair has raised $5.7M across 4 rounds since 2014. Investors include SOSV, Lowercarbon Capital and Third Sphere. Every round with its source.

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

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

# Who invested in *Flair*

4 rounds we have observed, with the 5 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.

Energy

Raised 8 months ago

Funding summary Updated 26 Oct 2026

**$5.7M** raised across 4 rounds since 2014, from 4 sources

- **Latest round:** Series B, $5.7M Mar 2026
- **Investors:** 5

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.

2014 2016 2018 2020 2022 2024 2026

**?** Round

**?** Seed

**?** Venture

**$5.7M** Series B

- **First round:** Round
- **Biggest round:** $5.7M
- **Usual gap between rounds:** 15 months

## The rounds

- **Mar 2026** Series B **$5.7M** *3 returning* [SOSV](https://millionrounds.com/fund/sosv) [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Third Sphere](https://millionrounds.com/fund/third-sphere) Source recorded
- **Dec 2024** Venture **Amount undisclosed** *2 new* *1 returning* [SOSV](https://millionrounds.com/fund/sosv) [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Third Sphere](https://millionrounds.com/fund/third-sphere) Source recorded
- **Jan 2015** Seed **Amount undisclosed** *2 new* [SOSV](https://millionrounds.com/fund/sosv) [HAX](https://millionrounds.com/fund/hax) From a historical funding record
- **Oct 2014** Round **Amount undisclosed** *1 new* [urban.us](https://millionrounds.com/fund/urban-us) From a historical funding record

## 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.

**Round** 2014 **Seed** 2015 **Venture** 2024 **Series B** 2026 [SOSV](https://millionrounds.com/fund/sosv) [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) [Third Sphere](https://millionrounds.com/fund/third-sphere) [HAX](https://millionrounds.com/fund/hax) [urban.us](https://millionrounds.com/fund/urban-us)

## Everyone who backed them

[SOSV](https://millionrounds.com/fund/sosv) VC firm **3** rounds

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

[Third Sphere](https://millionrounds.com/fund/third-sphere) VC firm **2** rounds

[HAX](https://millionrounds.com/fund/hax) Accelerator **1** round

[urban.us](https://millionrounds.com/fund/urban-us) VC firm **1** round

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

## Quick answers about Flair

### Who invested in Flair?

Flair's investors include SOSV, Lowercarbon Capital, Third Sphere, HAX and urban.us.

### How much has Flair raised?

Flair has raised $5.7M across 4 rounds since 2014. 3 rounds did not disclose an amount, so the total is a floor.

### When did Flair last raise?

Flair's most recent round was a Series B of $5.7M in Mar 2026.

### What was Flair's biggest round?

Its most recent round, $5.7M in Mar 2026, is also its largest on record.

### Who backed Flair first?

Flair's first round on record, in Oct 2014, was backed by urban.us.

### What stage is Flair at?

Flair's latest named round is a Series B, in Mar 2026.

### Where is Flair based?

Flair is based in the United States.

## Companies like Flair

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)

## Find investors like these

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