Carta vs Semper
Carta vs Semper, compared side by side on 14 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: Carta is on 61/100 and Semper on 56/100.
Where each one leads
Carta
- our overall score: 61/100 against 56/100
- agent readiness: 47/100 against 35/100
- funding raised: $1.7B against $7.5M
Semper
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Carta | Semper |
|---|---|---|
| What it is | The all-in-one platform for company capitalization. | Facilitated secondary share transactions for private companies, acquired by Crowdcube. |
| Category | Financial Services, Software, Venture Capital, LegalTech | Fintech, Secondary Markets, Investment Platforms, Liquidity Management |
| Sells toBusiness model | B2B | B2B2C |
| Offering | Platform | Platform |
| Founded | 2012 | 2021 |
| Headquarters | San Francisco, USA | London, United Kingdom |
| Status | Active | Inactive |
Size, funding and growth
| Measure | Carta | Semper |
|---|---|---|
| Employees | 1,000 | Not published |
| Total funding | $1.7B | $7.5M |
| Latest round | Series F | Seed |
| Valuation | $7.2B | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Carta | Semper |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 61/100 | 56/100 |
| Traction | 60/100 | 34/100 |
| Team | Not published | 70/100 |
| Community | 8/100 | Not published |
| Search visibility | 28/100 | 16/100 |
| Quality | 86/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (47/100) | F (35/100) |
| Domain ratingLink authority, 0-100 | 79/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Carta | Semper |
|---|---|---|
| CDN | Cloudflare | Not detected |
Carta vs Semper: common questions
Which is better, Carta or Semper?
On our 0-100 score Carta rates higher (61/100 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 14 data points above: read the rows that match what you are buying for.
How do Carta and Semper compare on the numbers?
Carta leads on our overall score (61/100 against 56/100), agent readiness (47/100 against 35/100), funding raised ($1.7B against $7.5M).
Read the full Carta review and pricing or the Semper review and pricing. You can also browse other Carta alternatives we track.