Cap-xx vs Fourth Power
Cap-xx vs Fourth Power, 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: Cap-xx is on 50/100 and Fourth Power on 51/100.
Where each one leads
Cap-xx
- agent readiness: 31/100 against 22/100
- domain rating: 43/100 against 1/100
Fourth Power
- funding raised: $49.0M against $4.0M
At a glance
| Measure | Cap-xx | Fourth Power |
|---|---|---|
| What it is | Australian manufacturer of thin, flat supercapacitors and energy management systems. | Developing advanced battery technology for grid-scale energy storage. |
| Category | Energy Storage, Supercapacitors, Advanced Manufacturing, Industrial IoT | Energy Storage, Battery Technology, Clean Energy, Grid Modernization |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 1997 | 2017 |
| Headquarters | Sydney, Australia | San Carlos, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Cap-xx | Fourth Power |
|---|---|---|
| Employees | 22 | Not published |
| Headcount growthLast 12 months | +70.0% | Not published |
| Total funding | $4.0M | $49.0M |
| Latest round | Funding Round | Series A-Plus |
| LinkedIn followers | 2,249 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Cap-xx | Fourth Power |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 50/100 | 51/100 |
| Traction | 47/100 | Not published |
| Team | 50/100 | Not published |
| Search visibility | 24/100 | 2/100 |
| Quality | 58/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (31/100) | F (22/100) |
| Domain ratingLink authority, 0-100 | 43/100 | 1/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Cap-xx | Fourth Power |
|---|---|---|
| Hosting | Self Managed | Not detected |
| Frameworks | Nuxt, Tailwind CSS | Not detected |
| Payments | Apple PAY | Not detected |
Cap-xx vs Fourth Power: common questions
Which is better, Cap-xx or Fourth Power?
On our 0-100 score Fourth Power rates higher (51/100 against 50/100). 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 13 data points above: read the rows that match what you are buying for.
How do Cap-xx and Fourth Power compare on the numbers?
Cap-xx leads on agent readiness (31/100 against 22/100), domain rating (43/100 against 1/100). Fourth Power leads on funding raised ($49.0M against $4.0M).
Read the full Cap-xx review and pricing or the Fourth Power review and pricing. You can also browse other Cap-xx alternatives we track.

