Rebellions vs SiFive
Rebellions vs SiFive, compared side by side on 19 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: Rebellions is on 51/100 and SiFive on 66/100.
Where each one leads
Rebellions
Leads on none of the measures we hold for both companies.
SiFive
- our overall score: 66/100 against 51/100
- agent readiness: 38/100 against 33/100
- domain rating: 70/100 against 50/100
- funding raised: $775M against $583M
- LinkedIn following: 64,744 against 18,529
At a glance
| Measure | Rebellions | SiFive |
|---|---|---|
| What it is | Rebellions is a South Korean fabless semiconductor startup designing high-performance AI chips for data centers and edge devices. | Designs and licenses RISC-V based custom processor cores and IP for diverse applications. |
| Category | AI Chip, AI Hardware, Semiconductor, Chip Design | AI Chip, AI Hardware, Chip Design, Semiconductor |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | Not published | 2015 |
| Headquarters | Seoul, South Korea | San Jose, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Rebellions | SiFive |
|---|---|---|
| Employees | Not published | 505 |
| Total funding | $583M | $775M |
| Latest round | Pre-IPO | Series G |
| Valuation | $2.3B | $3.6B |
| LinkedIn followers | 18,529 | 64,744 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Rebellions | SiFive |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 51/100 | 66/100 |
| Traction | 40/100 | 60/100 |
| Team | Not published | 50/100 |
| Search visibility | 29/100 | 29/100 |
| Quality | 68/100 | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (33/100) | F (38/100) |
| Domain ratingLink authority, 0-100 | 50/100 | 70/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Rebellions | SiFive |
|---|---|---|
| Hosting | AWS | Heroku |
| CMS | WordPress | Not detected |
| Frameworks | Jquery | Next.js, Bootstrap |
| Analytics | Google Analytics 4, Google Tag Manager, Microsoft Clarity, Linkedin Insight | Not detected |
| Support stack | HubSpot | Not detected |
| Open source | No | Yes |
Rebellions vs SiFive: common questions
Which is better, Rebellions or SiFive?
On our 0-100 score SiFive rates higher (66/100 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 19 data points above: read the rows that match what you are buying for.
How do Rebellions and SiFive compare on the numbers?
SiFive leads on our overall score (66/100 against 51/100), agent readiness (38/100 against 33/100), domain rating (70/100 against 50/100), funding raised ($775M against $583M), LinkedIn following (64,744 against 18,529).
Read the full Rebellions review and pricing or the SiFive review and pricing. You can also browse other Rebellions alternatives we track.

