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South 8 Technologies

San Diego, CA · Founded 2015 · Privately Held (backing)

Developer of liquefied gas electrolytes and lithium-ion batteries designed for secondary lithium and electrochemical capacitors. South 8 Technologies is based in San Diego, CA and was founded in 2015. Its last reported valuation was $43 million in Dec 2021. It has raised $25.4 million.

Last reported valuation
$43.0M
Oct 2026
Priced at
—
Total raised
$25.4M
Last round
—

South 8 Technologies key facts

as of Oct 2026
  • Developer of liquefied gas electrolytes and lithium-ion batteries designed for secondary lithium and electrochemical capacitors.
  • South 8 Technologies is valued at approximately $43.0M as of Oct 2026 (last reported valuation).
  • It has raised $25.4M; the latest was Later Stage VC ($11.0M) in Dec 2025.
  • Notable investors include Plug and Play Tech Center, Alumni Ventures, US National Science Foundation, U.S. Department of Energy, United States Department of War — 29 tracked in total.
  • Status: Privately Held (backing).
Last reported valuation
LOW confidence
$43.0M

South 8 Technologies's last reported valuation, Dec 2021. Nothing priced has surfaced since.

set by last reported valuationas of Oct 2026question about this number?
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South 8 Technologies funding rounds

No rounds on record

No funding rounds for South 8 Technologies are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

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South 8 Technologies valuation

South 8 Technologies's last reported valuation was $43 million in Dec 2021. No priced round, secondary trade or fund mark has surfaced since.

South 8 Technologies investors

29 investors are on record for South 8 Technologies, including Plug and Play Tech Center, Alumni Ventures, US National Science Foundation and U.S. Department of Energy. By type, the record holds 5 venture capital firms.

About South 8 Technologies

Developer of liquefied gas electrolytes and lithium-ion batteries designed for secondary lithium and electrochemical capacitors. The company's batteries deliver a substantial increase in energy density and performance at record-low temperatures while maintaining power characteristics, enabling transportation, high-altitude, aerospace, and military industries to mitigate thermal runaway and to achieve substantially lower flammability than conventional capacitor materials.

Sector
Materials and Resources
HQ
San Diego, CA, United States
Founded
2015
Employees
45
Ownership
Privately Held (backing)

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