# Siemba EASM vs SurfaceDiff: side-by-side comparison (2026)

[Siemba EASM](https://cybersectools.com/tools/siemba-easm) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Siemba](https://cybersectools.com/companies/siemba). [SurfaceDiff](https://cybersectools.com/tools/surfacediff) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SurfaceDiff](https://cybersectools.com/companies/surfacediff). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Siemba EASM | SurfaceDiff |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Siemba | SurfaceDiff |
| Headquarters | – | – |

### Use cases and capabilities

| | Siemba EASM | SurfaceDiff |
|---|---|---|
| Misconfiguration | Yes | – |
| TLS | Yes | Yes |
| DNS Security | – | Yes |
| Port Scanning | – | Yes |
| Subdomain Enumeration | – | Yes |
| Network Scanning | – | Yes |
| Security Scanning | – | Yes |
| Alerting | – | Yes |
| Reconnaissance | – | Yes |
| Visibility | – | Yes |
| Web Security | – | Yes |

### Core features

**Siemba EASM**

10 features listed. Sign in on the page to see them.

**SurfaceDiff**

9 features listed. Sign in on the page to see them.

### Integrations

**Siemba EASM**

6 integrations listed. Sign in on the page to see them.

**SurfaceDiff**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you are a startup.

## Siemba EASM vs SurfaceDiff FAQ

Common questions when comparing Siemba EASM vs SurfaceDiff for external attack surface management.

### What is the difference between Siemba EASM and SurfaceDiff?

**Siemba EASM**: AI-driven EASM platform for discovering and monitoring external-facing assets. Built by Siemba.

**SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans. Built by SurfaceDiff.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Siemba EASM and SurfaceDiff?

**Siemba EASM** is made by Siemba. **SurfaceDiff** is made by SurfaceDiff. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Siemba EASM a good alternative to SurfaceDiff?

Often, yes. Siemba EASM and SurfaceDiff are both External Attack Surface Management products, and both cover TLS. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Siemba EASM vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-siemba-easm)
- [Siemba EASM vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-siemba-easm)
- [Siemba EASM vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-siemba-easm)
- [SurfaceDiff vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff)
- [SurfaceDiff vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [SurfaceDiff vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-surfacediff)

## Alternatives to each

- [See all Siemba EASM alternatives](https://cybersectools.com/alternatives/siemba-easm)
- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)

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Source: https://cybersectools.com/compare/siemba-easm-vs-surfacediff

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/siemba-easm.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Siemba EASM and SurfaceDiff: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md