Mambu vs Sponge
Mambu vs Sponge, 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: Mambu is on 67/100 and Sponge on 42/100.
Where each one leads
Mambu
- our overall score: 67/100 against 42/100
- domain rating: 71/100 against 44/100
- headcount: 766 against 3
- funding raised: $444M against $500K
Sponge
- agent readiness: 51/100 against 33/100
At a glance
| Measure | Mambu | Sponge |
|---|---|---|
| What it is | The composable, API-first cloud banking platform. | Financial infrastructure for AI agents to hold and spend money autonomously. |
| Category | Fintech, Banking, Cloud Computing, Payments | Fintech, Payments, Digital Payments, Embedded Finance |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2011 | 2026 |
| Headquarters | Berlin, Germany | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Mambu | Sponge |
|---|---|---|
| Employees | 766 | 3 |
| Total funding | $444M | $500K |
| Latest round | Series E | Early Stage VC |
| Valuation | $4.9B | Not published |
| LinkedIn followers | 90,530 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Mambu | Sponge |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 67/100 | 42/100 |
| Traction | 60/100 | 35/100 |
| Team | 70/100 | 70/100 |
| Community | Not published | 15/100 |
| Search visibility | 38/100 | 16/100 |
| Quality | 78/100 | 40/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (33/100) | D (51/100) |
| Domain ratingLink authority, 0-100 | 71/100 | 44/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Mambu | Sponge |
|---|---|---|
| Hosting | Netlify | Vercel |
| CDN | Netlify | Cloudflare |
| Frameworks | Next.js, Tailwind CSS | Next.js, Tailwind CSS, Bootstrap |
| Analytics | Google Tag Manager | Not detected |
| Agentic commerceMachine-readable checkout or agent payment rails | Not detected | X402, MPP |
Mambu vs Sponge: common questions
Which is better, Mambu or Sponge?
On our 0-100 score Mambu rates higher (67/100 against 42/100). 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 Mambu and Sponge compare on the numbers?
Mambu leads on our overall score (67/100 against 42/100), domain rating (71/100 against 44/100), headcount (766 against 3), funding raised ($444M against $500K). Sponge leads on agent readiness (51/100 against 33/100).
Read the full Mambu review and pricing or the Sponge review and pricing. You can also browse other Mambu alternatives we track.