Matter.

Bristol, United Kingdom · Founded 2017 · Privately Held (backing)

Developer of a microfibre filtration technology designed to stop microplastics from entering the environment and to make them valuable for safe reuse. Matter. is based in Bristol, United Kingdom and was founded in 2017. Its last reported valuation was $22.7 million in Sep 2025. It has raised $26.7 million.

Last reported valuation
$22.7M
Oct 2026
Priced at
—
Total raised
$26.7M
Last round
—
What is Matter. worth?
$22.7Mlast reported valuation · Oct 2026

Matter.'s last reported valuation, Sep 2025. Nothing priced has surfaced since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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Matter. funding history

No rounds on record

No funding rounds for Matter. are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

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Matter. valuation

Matter.'s last reported valuation was $22.7 million in Sep 2025. No priced round, secondary trade or fund mark has surfaced since.

Institutional holders and vehicles

In the last 12 months, 2 investment vehicles were formed to buy Matter. shares, reporting $5.3 million sold to 25 investors across 2 sponsors, per SEC Form D filings (most recent Jun 2026).

How Matter.'s valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Matter., the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by last reported valuation. Question about this number? Full methodology →

Frequently asked about Matter.

What is Matter. worth?
Matter. is valued at $22.7M as of Oct 2026. Matter.'s last reported valuation, Sep 2025. Nothing priced has surfaced since.
How much has Matter. raised?
Matter. has raised $26.7M in total funding across its recorded rounds.