# FreeWave Zentry vs Rhebo OT Security: side-by-side comparison (2026)

[FreeWave Zentry](https://cybersectools.com/tools/freewave-zentry) is a commercial [industrial control system security](https://cybersectools.com/categories/ics-security) solution by [FreeWave Technologies](https://cybersectools.com/companies/freewave-technologies). [Rhebo OT Security](https://cybersectools.com/tools/rhebo-ot-security) is a commercial [industrial control system security](https://cybersectools.com/categories/ics-security) solution by [Rhebo](https://cybersectools.com/companies/rhebo). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | FreeWave Zentry | Rhebo OT Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Industrial Control System Security | Industrial Control System Security |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | Mid-Market, Enterprise, SMB | Mid-Market, Enterprise |
| Company | FreeWave Technologies | Rhebo |
| Headquarters | – | – |

### Use cases and capabilities

| | FreeWave Zentry | Rhebo OT Security |
|---|---|---|
| Zero Trust Architecture | Yes | – |
| ZTNA | Yes | – |
| IoT Security | Yes | – |
| Critical Infrastructure | Yes | Yes |
| SCADA | Yes | Yes |
| Network Segmentation | Yes | – |
| Remote Access | Yes | – |
| Least Privilege | Yes | – |
| Microsegmentation | Yes | – |

### Core features

**FreeWave Zentry**

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

**Rhebo OT Security**

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

### Integrations

**FreeWave Zentry**

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

**Rhebo OT Security**

1 integration listed. Sign in on the page to see them.

## Which one fits you

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

- [FreeWave Zentry](https://cybersectools.com/tools/freewave-zentry) fits if you need both cloud and on-premises options and you are a small business.
- [Rhebo OT Security](https://cybersectools.com/tools/rhebo-ot-security) fits if you need to run it on your own servers.

## FreeWave Zentry vs Rhebo OT Security FAQ

Common questions when comparing FreeWave Zentry vs Rhebo OT Security for industrial control system security.

### What is the difference between FreeWave Zentry and Rhebo OT Security?

**FreeWave Zentry**: OT-focused operational zero trust platform for secure field device access, built by FreeWave Technologies.

**Rhebo OT Security**: OT/IIoT network security monitoring, anomaly detection, and asset discovery, built by Rhebo.

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

### Who makes FreeWave Zentry and Rhebo OT Security?

**FreeWave Zentry** is made by FreeWave Technologies founded in 1993-01-01T00:00:00.000Z. **Rhebo OT Security** is made by Rhebo. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is FreeWave Zentry a good alternative to Rhebo OT Security?

Often, yes. FreeWave Zentry and Rhebo OT Security are both Industrial Control System Security products, and both cover SCADA, Critical Infrastructure. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [FreeWave Zentry vs Vantelis Water](https://cybersectools.com/compare/freewave-zentry-vs-vantelis-water)
- [FreeWave Zentry vs Secomea Prime](https://cybersectools.com/compare/freewave-zentry-vs-secomea-prime)
- [FreeWave Zentry vs Blue Ridge Networks LinkGuard & CyberCloak](https://cybersectools.com/compare/blue-ridge-networks-linkguard-and-cybercloak-vs-freewave-zentry)
- [Rhebo OT Security vs Vantelis Water](https://cybersectools.com/compare/rhebo-ot-security-vs-vantelis-water)
- [Rhebo OT Security vs Secomea Prime](https://cybersectools.com/compare/rhebo-ot-security-vs-secomea-prime)
- [Rhebo OT Security vs Blue Ridge Networks LinkGuard & CyberCloak](https://cybersectools.com/compare/blue-ridge-networks-linkguard-and-cybercloak-vs-rhebo-ot-security)

## Alternatives to each

- [See all FreeWave Zentry alternatives](https://cybersectools.com/alternatives/freewave-zentry)
- [See all Rhebo OT Security alternatives](https://cybersectools.com/alternatives/rhebo-ot-security)

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Source: https://cybersectools.com/compare/freewave-zentry-vs-rhebo-ot-security

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

More on FreeWave Zentry and Rhebo OT Security: 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