# NAN SIEM Services vs StreamAlert: side-by-side comparison (2026)

[NAN SIEM Services](https://cybersectools.com/tools/nan-siem-services) is a commercial [security information and event management](https://cybersectools.com/categories/security-information-and-event-management-siem) solution by [NAN](https://cybersectools.com/companies/nan). [StreamAlert](https://cybersectools.com/tools/streamalert) is a free [security information and event management](https://cybersectools.com/categories/security-information-and-event-management-siem) solution. Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best SIEM Solutions for Business](https://cybersectools.com/shortlists/best-siem-solutions) picks Microsoft Sentinel, Splunk Enterprise Security, CrowdStrike Falcon Next-Gen SIEM and 4 more.

## Side-by-side comparison

| | NAN SIEM Services | StreamAlert |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Security Information and Event Management | Security Information and Event Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | – | 2,886 |
| Last commit | – | Jul 2022 |
| Company | NAN | – |
| Headquarters | – | – |

### Use cases and capabilities

| | NAN SIEM Services | StreamAlert |
|---|---|---|
| Log Management | Yes | Yes |

### Core features

**NAN SIEM Services**

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

**StreamAlert**

No features listed.

## Which one fits you

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

- [StreamAlert](https://cybersectools.com/tools/streamalert) fits if you need a free product and you want an open-source product.

## NAN SIEM Services vs StreamAlert FAQ

Common questions when comparing NAN SIEM Services vs StreamAlert for security information and event management.

### What is the difference between NAN SIEM Services and StreamAlert?

**NAN SIEM Services**: Managed SIEM with 24x7 SOC, MDR, and security automation services. Built by NAN.

**StreamAlert**: Serverless, real-time data analysis framework for incident detection and response.

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

### Who makes NAN SIEM Services and StreamAlert?

**NAN SIEM Services** is made by NAN. **StreamAlert** is open-source with 2,886 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is NAN SIEM Services a good alternative to StreamAlert?

Often, yes. NAN SIEM Services and StreamAlert are both Security Information and Event Management products, and both cover Log Management. Key differences: NAN SIEM Services is Commercial while StreamAlert is Free, StreamAlert is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [NAN SIEM Services vs UTMStack Real-time SIEM & XDR](https://cybersectools.com/compare/nan-siem-services-vs-utmstack-real-time-siem-and-xdr)
- [NAN SIEM Services vs Logsign Unified Security Operations Platform](https://cybersectools.com/compare/logsign-unified-security-operations-platform-vs-nan-siem-services)
- [NAN SIEM Services vs Logpresso](https://cybersectools.com/compare/logpresso-vs-nan-siem-services)
- [StreamAlert vs UTMStack Real-time SIEM & XDR](https://cybersectools.com/compare/streamalert-vs-utmstack-real-time-siem-and-xdr)
- [StreamAlert vs Logsign Unified Security Operations Platform](https://cybersectools.com/compare/logsign-unified-security-operations-platform-vs-streamalert)
- [StreamAlert vs Logpresso](https://cybersectools.com/compare/logpresso-vs-streamalert)

## Alternatives to each

- [See all NAN SIEM Services alternatives](https://cybersectools.com/alternatives/nan-siem-services)
- [See all StreamAlert alternatives](https://cybersectools.com/alternatives/streamalert)

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Source: https://cybersectools.com/compare/nan-siem-services-vs-streamalert

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

More on NAN SIEM Services and StreamAlert: 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