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6K

Machinery (B2B) · North Andover, MA · Founded 2014 · Privately Held (backing)

Developer of an advanced microwave-based plasma technology designed to improve the production processes of nanomaterials. 6K is based in North Andover, MA and was founded in 2014. It was valued at $396 million at its later-stage round in Jul 2024, the last priced event on record. It has raised $298 million across 1 recorded round; the latest was a $60.1 million Series C in Dec 2021.

PMV mark · valuation
$396.0M
Oct 2026
Priced at
its later-stage round
Jul 2024
Total raised
$297.8M
Last round
Later Stage VC (Series C)
Dec 2021

6K key facts

as of Oct 2026
  • Developer of an advanced microwave-based plasma technology designed to improve the production processes of nanomaterials.
  • 6K is valued at approximately $396.0M as of Oct 2026, set at its later-stage round, Jul 2024; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $297.8M across 1 recorded rounds; the latest was Later Stage VC (Series C) ($60.1M) in Dec 2021.
  • Notable investors include Astir Ventures, U.S. Department of Energy, United States Department of War, In-Q-Tel, Energy Impact Partners — 23 tracked in total.
  • Status: Privately Held (backing).
PrivateMarketView mark
LOW confidence
$396.0M

Valued at $396.0M at its later-stage round, Jul 2024. Nothing has traded since.

set by its last priced roundas of Oct 2026question about this number?
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6K funding rounds

1 rounds
Dec 2021Later Stage VC (Series C)$60.1M▮
Full funding history →

6K valuation

6K was valued at $396 million at its later-stage round in Jul 2024. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has 6K raised?

6K has raised $298 million in total; 1 of its rounds is on record. The largest on record was a $60.1 million Series C in Dec 2021.

6K investors

23 investors are on record for 6K, including Astir Ventures, U.S. Department of Energy, United States Department of War and In-Q-Tel. By type, the record holds 6 venture capital firms and 1 family office. The Series C in Dec 2021 drew 9 investors.

About 6K

Developer of an advanced microwave-based plasma technology designed to improve the production processes of nanomaterials. The company's technology uses proprietary plasma processing and industrial systems to create materials that enable a new variety of commercial and consumer products, enabling companies to get complete and unprecedented access to the entire materials engineering process and produce materials at exact specifications.

Industry
Machinery (B2B)
Sector
Business Products and Services (B2B)
HQ
North Andover, MA, United States
Founded
2014
Employees
169
Website
6kinc.com/
Ownership
Privately Held (backing)

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