Valued at $435.0M at its later-stage round, Jan 2024. Nothing has traded since.
- ·The complete investor list: 11 names
- ·Watch Sion Power: the Monday email on marks, rounds and moves
Valuation timeline
0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026Membership and data by Private Market View
Sion Power funding history
2 rounds| Date | Round | Raised | Post-money | $/share |
|---|---|---|---|---|
| Nov 2021 | Later Stage VC | $240.3M | ▮ | ▮ |
| Nov 2021 | Early Stage VC | $20.0M | ▮ | ▮ |
Membership and data by Private Market View
Sion Power valuation
Sion Power was valued at $435 million at its later-stage round in Jan 2024. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.
How much has Sion Power raised?
Sion Power has raised $145 million across 2 recorded rounds since 2021. The largest was a $240 million later-stage round in Nov 2021.
Sion Power has filed 4 Form Ds with the SEC since 2011, most recently in Nov 2021 ($20 million sold to 5 investors).
How Sion Power's valuation is determined
Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.
For Sion Power, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by its last priced round. Question about this number? Full methodology →
Frequently asked about Sion Power
- What is Sion Power worth?
- Sion Power is valued at $435.0M as of Oct 2026. Valued at $435.0M at its later-stage round, Jan 2024. Nothing has traded since.
- How much has Sion Power raised?
- Sion Power has raised $144.5M in total funding across 2 recorded rounds.
- When did Sion Power last raise?
- Sion Power last raised in Nov 2021 (Later Stage VC), raising $240.3M.