Fourth Power vs Ioxus
Fourth Power vs Ioxus, compared side by side on 13 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 Ioxus on 51/100.
Where each one leads
Fourth Power
- funding raised: $49.0M against $37.0M
Ioxus
- agent readiness: 50/100 against 22/100
- domain rating: 32/100 against 1/100
At a glance
| Measure | Fourth Power | Ioxus |
|---|---|---|
| What it is | Developing advanced battery technology for grid-scale energy storage. | Develops and manufactures innovative ultracapacitor technologies for energy storage solutions. |
| Category | Energy Storage, Battery Technology, Clean Energy, Grid Modernization | Energy Storage, Battery Technology, Ultracapacitors, Green Energy |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2017 | 2007 |
| Headquarters | San Carlos, United States | Oneonta, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Fourth Power | Ioxus |
|---|---|---|
| Total funding | $49.0M | $37.0M |
| Latest round | Series A-Plus | Series C |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Fourth Power | Ioxus |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 51/100 | 51/100 |
| Traction | Not published | 38/100 |
| Team | Not published | 70/100 |
| Search visibility | 2/100 | 2/100 |
| Quality | Not published | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (22/100) | D (50/100) |
| Domain ratingLink authority, 0-100 | 1/100 | 32/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Fourth Power | Ioxus |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Shopify |
Fourth Power vs Ioxus: common questions
Which is better, Fourth Power or Ioxus?
Both score the same on our 0-100 rating, so the choice comes down to the 13 data points in the tables above rather than overall company strength.
How do Fourth Power and Ioxus compare on the numbers?
Fourth Power leads on funding raised ($49.0M against $37.0M). Ioxus leads on agent readiness (50/100 against 22/100), domain rating (32/100 against 1/100).
Read the full Fourth Power review and pricing or the Ioxus review and pricing. You can also browse other Fourth Power alternatives we track.