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Sepion Technologies

Almeda, CA · Founded 2015 · Privately Held (backing)

Manufacturer of energy storage products intended to combine nanoscience, polymer chemistry and cell engineering to deliver lithium-metal batteries. Sepion Technologies is based in Almeda, CA and was founded in 2015. It was valued at $50.8 million at its later-stage round in Nov 2021, the last priced event on record. It has raised $28.8 million across 1 recorded round; the latest was an $18.7 million early-stage round in Oct 2021.

PMV mark · valuation
$50.8M
Oct 2026
Priced at
its later-stage round
Nov 2021
Total raised
$28.8M
Last round
Early Stage VC
Oct 2021

Sepion Technologies key facts

as of Oct 2026
  • Manufacturer of energy storage products intended to combine nanoscience, polymer chemistry and cell engineering to deliver lithium-metal batteries.
  • Sepion Technologies is valued at approximately $50.8M as of Oct 2026, set at its later-stage round, Nov 2021; nothing has traded since, per PrivateMarketView’s mark.
  • It has raised $28.8M across 1 recorded rounds; the latest was Early Stage VC ($18.7M) in Oct 2021.
  • Notable investors include Alumni Ventures, Gaingels, U.S. Department of Energy, Calm Ventures, F-Prime Capital — 27 tracked in total.
  • Sepion Technologies has filed 1 Form D with the SEC, most recently Nov 2021 ($18.7M sold to 22 investors).
  • Status: Privately Held (backing).
PrivateMarketView mark
LOW confidence
$50.8M

Valued at $50.8M at its later-stage round, Nov 2021. Nothing has traded since.

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

1 rounds
Oct 2021Early Stage VC$18.7MSEC filing▮
Full funding history →

Sepion Technologies valuation

Sepion Technologies was valued at $50.8 million at its later-stage round in Nov 2021. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Sepion Technologies raised?

Sepion Technologies has raised $28.8 million in total; 1 of its rounds is on record. The largest on record was an $18.7 million early-stage round in Oct 2021.

Sepion Technologies has filed 1 Form D with the SEC, most recently in Nov 2021 ($18.7 million sold to 22 investors).

Sepion Technologies investors

27 investors are on record for Sepion Technologies, including Alumni Ventures, Gaingels, U.S. Department of Energy and Calm Ventures. By type, the record holds 7 venture capital firms and 1 family office. The early-stage round in Oct 2021 drew 22 investors.

About Sepion Technologies

Manufacturer of energy storage products intended to combine nanoscience, polymer chemistry and cell engineering to deliver lithium-metal batteries. The company's composite membrane is an alternative to expensive and resistive ceramic separators within lithium batteries and can be processed in large-area formats at a lower cost, enabling battery producers to offer products with increased energy density.

Sector
Business Products and Services (B2B)
HQ
Almeda, CA, United States
Founded
2015
Employees
23
Ownership
Privately Held (backing)

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