6K

Private

North Andover, MassachusettsFrontier & Industrial Techhttps://www.6kinc.com/

Last Round

Grant

Dec 15, 2025

Total Funding Raised

$355.87M

Company Overview

6K is a nanotechnology company that develops advanced microwave-based plasma technology to transform the production processes of nanomaterials and engineered powders for industries such as additive manufacturing and battery storage.

Sector

Frontier & Industrial Tech

Verticals

Advanced Materials, 3D Printing, Energy Storage, Clean Manufacturing

Business Model

B2B

Customer Profile

Hardware Sales, Government Contracts, Services & Consulting

AI Layer

Non-AI

Keywords

microwave plasmametal powdersadditive manufacturing3D printingbattery materialscathode materialsanode materialsUniMeltadvanced materialsclean manufacturingclosed-loop productioncircular economymaterial recyclingenergy storagedefense manufacturing

Historical Pricing

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Caplight Momentum Score

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6K Comps

Public and private peers based on sector, stage, and business model.

6K comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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6K Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Grant	Dec 15, 2025
Series E	Sep 5, 2024
Grant	Dec 8, 2023
Grant	Oct 19, 2022
Series D	Aug 10, 2022
Series D	May 12, 2022

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Key People

Founding team and executive leadership

Richard Holman

Chief Technology Officer

Executive Team

6K Investors

Notable investors and investment history

6K investors
Investor	Rounds
HG Ventures	Series D
KLP Ventures	Series B
Volta Energy Technologies	Series E, Series C
Massachusetts Development Finance Agency	Series B, Debt
Stellantis Ventures	Series D
Material Impact	Series C, Series B Extension, Series B, Series E
U.S. Department of War	Grant

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Market signals

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May 21, 2019
$11M round led by Anzu Partners.

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6K Filings

SEC and related filings with document metadata.

Data table
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6K Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersNorth Andover, Massachusetts

Employee Range169

Year Founded2014

Last FundingDec 15, 2025

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