645 Ventures vs Samaipata
645 Ventures vs Samaipata, 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: 645 Ventures is on 43/100 and Samaipata on 43/100.
Where each one leads
645 Ventures
- domain rating: 48/100 against 36/100
Samaipata
- agent readiness: 48/100 against 32/100
- headcount: 50 against 10
- funding raised: $110M against $63.0M
At a glance
| Measure | 645 Ventures | Samaipata |
|---|---|---|
| What it is | Venture capital firm focused on early-stage technology companies. | Pan-European venture capital firm investing in early-stage, AI-native B2B technology startups. |
| Category | Venture Capital, Technology, Artificial Intelligence, Software | Venture Capital, Artificial Intelligence, Technology, AI |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Services |
| Founded | 2015 | 2016 |
| Headquarters | New York, USA | Madrid, Spain |
| Status | Active | Active |
Size, funding and growth
| Measure | 645 Ventures | Samaipata |
|---|---|---|
| Employees | 10 | 50 |
| Total funding | $63.0M | $110M |
| Latest round | Venture Round | Fund III |
| Valuation | $1.1B | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | 645 Ventures | Samaipata |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 43/100 | 43/100 |
| Traction | 49/100 | 57/100 |
| Team | Not published | 60/100 |
| Community | Not published | 8/100 |
| Search visibility | 11/100 | 8/100 |
| Quality | 55/100 | 45/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (32/100) | D (48/100) |
| Domain ratingLink authority, 0-100 | 48/100 | 36/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | 645 Ventures | Samaipata |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Next.js | Not detected |
| Analytics | Google Analytics 4 | Google Analytics 4, Google Tag Manager |
| Open source | Yes | No |
645 Ventures vs Samaipata: common questions
Which is better, 645 Ventures or Samaipata?
Both score the same on our 0-100 rating, so the choice comes down to the 19 data points in the tables above rather than overall company strength.
How do 645 Ventures and Samaipata compare on the numbers?
645 Ventures leads on domain rating (48/100 against 36/100). Samaipata leads on agent readiness (48/100 against 32/100), headcount (50 against 10), funding raised ($110M against $63.0M).
Read the full 645 Ventures review and pricing or the Samaipata review and pricing. You can also browse other 645 Ventures alternatives we track.

