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Phoenix Tailings

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Metals refinement company extracting value from waste in the mining industry called Bauxite Residue ('Red Mud"​)

Woburn, United StatesFounded 2019Energy
Valuation $250–500M Last recorded · 2026
Headcount 100–500 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Phoenix Tailings and the history behind them.

About Phoenix Tailings

Phoenix Tailings is a pioneering startup that operates in the metals production industry with a unique, sustainable approach. The company's mission is to revolutionize the way metals are produced by extracting valuable metals and rare earth elements from mining waste, thereby reducing environmental impact and creating a cleaner supply chain.

The company's target market includes industries that rely heavily on metals, such as the renewable energy sector, which is increasingly dependent on metals and rare earth elements. As the world shifts towards an electrified industrial ecosystem, the demand for these materials is on the rise. However, traditional methods of metals production are environmentally destructive and often linked to poor labor conditions. Phoenix Tailings aims to address these issues by offering a more sustainable alternative.

Phoenix Tailings' business model is based on leveraging zero-waste technology to transform metals production. Their process uses clean energy sources and avoids hazardous chemicals, resulting in no waste. This not only reduces the environmental costs associated with traditional metals production but also unlocks the full value of natural resources.

The company generates revenue by selling the metals and rare earth elements it extracts from mining waste. This approach not only provides a more sustainable source of these materials but also helps to reduce the environmental impact of mining operations.

In summary, Phoenix Tailings is a forward-thinking startup that is changing the metals production industry by offering a sustainable, zero-waste solution.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
Woburn, United States
Employees
135
Open positions
63
Dealroom signal
94.5/100
Sector
Energy, Natural Resources, Mining Technologies, Waste Reduction, Sustainable Development Goals, Climate Tech, Circular Economy, Rare Earth, NIF defense security and resilience, NIF Supply Chain Resilience, DT and LS
Technology
Hardware, Deep Tech
Business model
Manufacturing
Client focus
b2b
Investment activity
1 company, latest May 2026
Capital deployed
—
Preferred round
ACQUISITION

Funding history

10 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
DEBTDebt Jun 2026 $500M — US Department of War · US Office of Strategic Capital ↗
GRANTOther financing Jun 2026 $66M — US Department of Energy ↗
Showing the latest 2 of 10 recorded eventsBook a demo for the full funding history →

Growth signals

Phoenix Tailings website traffic

Latest recorded traffic for Phoenix Tailings is 13K monthly website visits, up 64.6% over the last three months. Phoenix Tailings's team grew 20.5% over the past year.

Latest monthly visits13K 3-month web change+64.6% 1-year team growth+20.5%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

17 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed5 investors entered at this stage

  • US National Science Foundation
  • Techstars
  • Bantam Group
  • MassVentures
  • US Department of Energy

Series A6 investors entered at this stage

  • BMW
  • Yamaha Motor
  • Presidio Ventures
  • Yamaha Motor Ventures
  • MPower Partners
  • Builders Vision

Series B and later5 investors entered at this stage

  • Olive Tree Capital
  • Geodesic Capital
  • Traxys
  • US Department of War
  • US Office of Strategic Capital

Other known investors1 additional known investor

  • J2 Ventures
Team profiled 26 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
9 countries with
team presence
🇺🇸 United States91.7%
🇦🇺 Australia1%
🇧🇷 Brazil1%
🇮🇪 Ireland1%
🇭🇺 Hungary1%
Top 5 of 9 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Phoenix Tailings on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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