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Alta Resource Technologies

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A mineral extraction company

Boulder, United StatesFounded 2022Energy
Valuation $25–50M Last recorded · 2025
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About Alta Resource Technologies

Alta Resource Technologies, Inc. operates as a climate technology firm with a focus on reinventing mining through advanced biochemistry to source critical raw materials. Founded in 2022 by Co-Founder and CEO Nathan Ratledge, PhD, the Boulder, Colorado-based company is developing a platform to address the strategic imperative for resilient, low-impact sources of essential minerals. The company emerged from stealth mode in early 2025, announcing significant seed funding and grant awards.

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The core of Alta's business is a proprietary technology platform that utilizes custom-designed proteins for the precise extraction of high-purity rare earth elements (REEs) and other critical minerals from diverse feedstocks. This approach involves engineering proteins to bind selectively to specific metals, even at low concentrations, which allows for their separation from complex mixtures. This technology, licensed from Lawrence Livermore National Laboratory and co-developed with partners like Pennsylvania State University, offers a substantial change from conventional separation methods by dramatically reducing costs and the environmental footprint of mining. The process is designed to be continuous and scalable, enabling the extraction of minerals from previously untapped and uneconomic sources such as low-grade ores, mine tailings, waste streams, and end-of-life products.

Alta's business model is centered on providing a scalable solution for domestic mineral production, targeting clients in sectors reliant on critical materials like advanced electronics, renewable energy, and defense technologies. The initial focus is on increasing the supply of REEs such as neodymium and dysprosium, which are vital for electric vehicle motors, wind turbines, and defense applications. By doing so, Alta aims to mitigate the supply chain risks associated with heavy reliance on foreign imports, particularly from China, and bolster U.S. national and economic security. The global market for REEs is projected to expand significantly, and Alta's technology is positioned to address this growing demand.

Financially, the company is privately held and venture capital-backed. It has successfully raised a total of $14 million over four funding rounds. An initial seed round in January 2025 raised $5.1 million, co-led by DCVC and Voyager Ventures, with participation from other firms. This was followed by a Seed 2 round in May 2025, which added $4.4 million, bringing the total seed funding to over $10 million and including investment from In-Q-Tel (IQT), a strategic investor for the U.S. national security community. Additionally, Alta has secured nearly $1 million in grants from the U.S. Department of Defense's DARPA and the State of Colorado. This capital is being used to expand the technical team, advance commercial pilots, and apply the technology to a wider range of metals and feedstocks.

Source: Dealroom company data

At a glance

Founded
2022
Headquarters
Boulder, United States
Sector
Energy

Investors

8 investors on the cap table

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

Seed8 investors entered at this stage

  • DARPA
  • State of Colorado
  • DCVC
  • Voyager Ventures
  • Overture VC
  • WovenEarth Ventures
  • Orion Industrial Ventures
  • In-Q-Tel
Team profiled 5 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 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
2 countries with
team presence
🇺🇸 United States97.1%
🇹🇭 Thailand2.9%
2 countries shown

Market sentiment

Posts on X, past 7 days

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