Sepion Technologies
Materials Solutions for the Electrify-Everything Revolution
Alameda, United States · Founded 2015 · $28.4M raised
- Headquarters
- Alameda, California
- Employees
- 11–50
- Founded
- 2015
- Business Model
- B2B
- Website
- sepiontechnologies.com
- Total Funding
- $28.4M
- Last Round
- $10.0M Series BApr 2026
- Rounds
- 5
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 5 funding rounds and 4 investors for this company. The full record is or through the API.
About
Sepion Technologies is an Alameda, California-based advanced materials company founded in 2015, commercializing polymer research from Lawrence Berkeley National Lab. The company manufactures nanoporous battery separators using polymer of intrinsic microporosity (PIM) technology, enabling longer-lasting, faster-charging, safer lithium-metal batteries at significantly lower cost than ceramic alternatives. Sepion supplies polymer materials and coated separators to battery and EV manufacturers from its 25,000-square-foot pilot production facility.
Summary
Sepion Technologies is an Advanced Materials company based in Alameda, United States, founded in 2015. It has raised $28.4M in total across 5 rounds, most recently a $10.0M Series B round in Apr 2026. Investors include Fine Structure Ventures, Alumni Ventures and Boeing.
Tech & App Stack
2 technologies & apps tracked
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Funding History
Apr 2026
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Funding: Grant through Series B. Amounts, valuations, and investors where available.
Investors
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