Promise Bio vs Protai
Promise Bio vs Protai, compared side by side on 18 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: Promise Bio is on 53/100 and Protai on 56/100.
Where each one leads
Promise Bio
Leads on none of the measures we hold for both companies.
Protai
- our overall score: 56/100 against 53/100
- agent readiness: 36/100 against 21/100
- domain rating: 25/100 against 2/100
- headcount: 28 against 14
- funding raised: $20.0M against $9.8M
- LinkedIn following: 4,276 against 1,451
At a glance
| Measure | Promise Bio | Protai |
|---|---|---|
| What it is | AI-powered epiproteomic analysis platform for mass spectrometry data. | AI-driven platform for protein-level disease mapping and drug discovery. |
| Category | Life Sciences, Biotech, Proteomics, HealthTech | Life Sciences, Drug Discovery, Proteomics, Drug Development |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2022 | 2021 |
| Headquarters | San Francisco, United States | Tel Aviv, Israel |
| Status | Inactive | Active |
Size, funding and growth
| Measure | Promise Bio | Protai |
|---|---|---|
| Employees | 14 | 28 |
| Headcount growthLast 12 months | Not published | +6.3% |
| Total funding | $9.8M | $20.0M |
| Latest round | Seed | Seed |
| LinkedIn followers | 1,451 | 4,276 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Promise Bio | Protai |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 53/100 | 56/100 |
| Traction | 47/100 | 51/100 |
| Team | 60/100 | 70/100 |
| Search visibility | 33/100 | 37/100 |
| Quality | 58/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (21/100) | F (36/100) |
| Domain ratingLink authority, 0-100 | 2/100 | 25/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Promise Bio | Protai |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Lovable |
Promise Bio vs Protai: common questions
Which is better, Promise Bio or Protai?
On our 0-100 score Protai rates higher (56/100 against 53/100). 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 18 data points above: read the rows that match what you are buying for.
How do Promise Bio and Protai compare on the numbers?
Protai leads on our overall score (56/100 against 53/100), agent readiness (36/100 against 21/100), domain rating (25/100 against 2/100), headcount (28 against 14), funding raised ($20.0M against $9.8M), LinkedIn following (4,276 against 1,451).
Read the full Promise Bio review and pricing or the Protai review and pricing. You can also browse other Promise Bio alternatives we track.