Fourth Power vs SILA
Fourth Power vs SILA, compared side by side on 11 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Fourth Power is on 51/100 and SILA on 61/100.
Where each one leads
Fourth Power
Leads on none of the measures we hold for both companies.
SILA
- our overall score: 61/100 against 51/100
- funding raised: $488M against $49.0M
At a glance
| Measure | Fourth Power | SILA |
|---|---|---|
| What it is | Developing advanced battery technology for grid-scale energy storage. | SILA develops advanced battery technology for electric vehicles and grid storage. |
| Category | Energy Storage, Battery Technology, Clean Energy, Grid Modernization | Energy Storage, Battery Technology, Electric Vehicles, Advanced Materials |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2017 | 2010 |
| Headquarters | San Carlos, United States | Palo Alto, United States |
| Status | Active | Inactive |
Size, funding and growth
| Measure | Fourth Power | SILA |
|---|---|---|
| Total funding | $49.0M | $488M |
| Latest round | Series A-Plus | Private Equity |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Fourth Power | SILA |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 51/100 | 61/100 |
| Team | Not published | 36/100 |
| Search visibility | 2/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (22/100) | F (22/100) |
| Domain ratingLink authority, 0-100 | 1/100 | Not published |
Fourth Power vs SILA: common questions
Which is better, Fourth Power or SILA?
On our 0-100 score SILA rates higher (61/100 against 51/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 11 data points above: read the rows that match what you are buying for.
How do Fourth Power and SILA compare on the numbers?
SILA leads on our overall score (61/100 against 51/100), funding raised ($488M against $49.0M).
Read the full Fourth Power review and pricing or the SILA review and pricing. You can also browse other Fourth Power alternatives we track.

