# 6K

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/6k

- Industry: Materials
- Headquarters: North Andover, US
- Website: www.6kinc.com
- Total disclosed funding: $510M
- Latest round: Debt (Nov 6, 2026)
- Investors on record: 14

## About

Founded in 2014 and based in Massachusetts, US, 6K Inc., formerly known as Amastan Technologies LLC, operates as a microwave plasma technology company that offers battery materials. In September 2024, 6K Inc. raised USD 82 million led by Anzu Partners, Energy Impact Partners, LaunchCapital, Material Impact Fund, and Volta Energy Technologies. As of 2022, the company is led by its CEO, Saurabh Ullal.

6K develops and offers battery cathode active materials (CAM) for lithium-ion batteries, additive manufacturing, renewable energy, aerospace, and consumer electronics. The company provides UniMelt®, which is a microwave-based plasma technology that utilizes microwave-based plasma to process materials into various products. The solutions offered by the company include 6K additive metal powders and alloys; battery materials; and a and a metal powder portfolio for additive manufacturing.

The company plans to utilize the September 2024 funding raised to expand the scope of its additive manufacturing metal powders and increase production capacity for battery cathode active materials.

## Funding rounds

- Debt, Nov 6, 2026, $250M — Department of Defense
- Series E, Sep 5, 2024, $82M — LaunchCapital, Anzu Partners, Energy Impact Partners, Material Impact Fund, Volta Energy Technologies
- Series D, Mar 30, 2022, $102M — Energy Impact Partners, HG Ventures, Albemarle Corporation, Koch Strategic Platforms
- Series C, Sep 22, 2021, $51M — LaunchCapital, Catalus Capital, RKS Ventures, Anzu Partners, Material Impact Fund, Volta Energy Technologies, S Cap, Prithvi Ventures
- Series B, May 20, 2019, $11M — LaunchCapital, RKS Ventures, Anzu Partners, Material Impact Fund
- Series B, Oct 26, 2017, $14M — LaunchCapital, RKS Ventures, Anzu Partners, Material Impact Fund, KLP Ventures

## Investors

- LaunchCapital (https://capitalatlas.ai/funds/launchcapital) — Series B, Series C, Series E
- RKS Ventures — Series B, Series C
- Anzu Partners (https://capitalatlas.ai/funds/anzu-partners) — Series B, Series C, Series E
- Material Impact Fund (https://capitalatlas.ai/funds/material-impact-fund) — Series B, Series C, Series E
- KLP Ventures — Series B
- Catalus Capital (https://capitalatlas.ai/funds/catalus-capital) — Series C
- Volta Energy Technologies (https://capitalatlas.ai/funds/volta-energy-technologies) — Series C, Series E
- S Cap (https://capitalatlas.ai/funds/s-cap) — Series C
- Prithvi Ventures (https://capitalatlas.ai/funds/prithvi-ventures) — Series C
- Energy Impact Partners (https://capitalatlas.ai/funds/energy-impact-partners) — Series D, Series E
- HG Ventures (https://capitalatlas.ai/funds/hg-ventures) — Series D
- Albemarle Corporation — Series D
- Koch Strategic Platforms (https://capitalatlas.ai/funds/koch-strategic-platforms) — Series D
- Department of Defense — Debt