Phoenix Tailings

Woburn, MA · Founded 2019 · Privately Held (backing)

Operator of a metal refining company intended to leverage untapped value within mining and refining waste economically and sustainably. Phoenix Tailings is based in Woburn, MA and was founded in 2019. It was valued at $395 million at its later-stage round in Feb 2026, the last priced event on record. It has raised $129 million across 2 recorded rounds; the latest was a $107 million later-stage round in Nov 2024.

PMV mark · valuation
$395.0M
Oct 2026
Priced at
its later-stage round
Feb 2026
Total raised
$128.7M
Last round
Later Stage VC
Nov 2024

Who backs Phoenix Tailings?

50 investors
InvestorType
TechstarsOther
US National Science FoundationOther
Mana VenturesVenture capital
GaingelsVenture capital
U.S. Department of EnergyOther
Calm VenturesVenture capital
In-Q-TelVenture capital
Greentown LabsOther
MassVenturesOther
Olive Tree CapitalVenture capital
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Phoenix Tailings investors

50 investors are on record for Phoenix Tailings, including Techstars, US National Science Foundation, Mana Ventures and Gaingels. By type, the record holds 15 venture capital firms and 2 family offices. The later-stage round in Nov 2024 drew 75 investors.

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