Karius vs Protai
Karius vs Protai, compared side by side on 20 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: Karius is on 57/100 and Protai on 56/100.
Where each one leads
Karius
- agent readiness: 45/100 against 36/100
- domain rating: 47/100 against 25/100
- headcount: 214 against 28
- headcount growth: +26.1% against +6.3%
- funding raised: $315M against $20.0M
- LinkedIn following: 12,842 against 4,276
Protai
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Karius | Protai |
|---|---|---|
| What it is | Advanced infectious disease diagnostics | AI-driven platform for protein-level disease mapping and drug discovery. |
| Category | Life Sciences, Biotech, Genomics, Blood | Life Sciences, Drug Discovery, Proteomics, Drug Development |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2014 | 2021 |
| Headquarters | Not published | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Karius | Protai |
|---|---|---|
| Employees | 214 | 28 |
| Headcount growthLast 12 months | +26.1% | +6.3% |
| Total funding | $315M | $20.0M |
| Latest round | Series C | Seed |
| LinkedIn followers | 12,842 | 4,276 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Karius | Protai |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 57/100 | 56/100 |
| Traction | 60/100 | 51/100 |
| Team | 30/100 | 70/100 |
| Search visibility | 32/100 | 37/100 |
| Quality | 65/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | F (36/100) |
| Domain ratingLink authority, 0-100 | 47/100 | 25/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Karius | Protai |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| CMS | Ghost | Lovable |
| Frameworks | Next.js | Not detected |
| Analytics | Hotjar | Not detected |
| Support stack | HubSpot | Not detected |
Karius vs Protai: common questions
Which is better, Karius or Protai?
On our 0-100 score Karius rates higher (57/100 against 56/100). 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 20 data points above: read the rows that match what you are buying for.
How do Karius and Protai compare on the numbers?
Karius leads on agent readiness (45/100 against 36/100), domain rating (47/100 against 25/100), headcount (214 against 28), headcount growth (+26.1% against +6.3%), funding raised ($315M against $20.0M), LinkedIn following (12,842 against 4,276).
Read the full Karius review and pricing or the Protai review and pricing. You can also browse other Karius alternatives we track.