# Fidelis Security vs SentinelOne: side-by-side comparison (2026)

[Fidelis Security](https://cybersectools.com/tools/fidelis-security) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [Fidelis Security](https://cybersectools.com/companies/fidelis-security). [SentinelOne](https://cybersectools.com/tools/sentinelone) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [SentinelOne](https://cybersectools.com/companies/sentinelone). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Fidelis Security | SentinelOne |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Extended Detection and Response | Extended Detection and Response |
| Verified | No | No |
| Deployment type | Hybrid | Cloud |
| Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Fidelis Security | SentinelOne |
| Headquarters | – | – |

### Use cases and capabilities

| | Fidelis Security | SentinelOne |
|---|---|---|
| Active Directory | Yes | – |
| MITRE ATT&CK | Yes | – |
| NDR | Yes | – |

### Core features

**Fidelis Security**

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

**SentinelOne**

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

### Integrations

**Fidelis Security**

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

**SentinelOne**

No integrations listed.

## Which one fits you

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

- [Fidelis Security](https://cybersectools.com/tools/fidelis-security) fits if you need both cloud and on-premises options.
- [SentinelOne](https://cybersectools.com/tools/sentinelone) fits if you want a cloud product and you are a small business.

## Fidelis Security vs SentinelOne FAQ

Common questions when comparing Fidelis Security vs SentinelOne for extended detection and response.

### What is the difference between Fidelis Security and SentinelOne?

**Fidelis Security**: XDR platform with NDR, EDR, deception, AD security, and CNAPP capabilities. Built by Fidelis Security.

**SentinelOne**: AI-driven endpoint protection platform for threat detection and response. Built by SentinelOne.

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

### Who makes Fidelis Security and SentinelOne?

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

### Is Fidelis Security a good alternative to SentinelOne?

Often, yes. Fidelis Security and SentinelOne are both Extended Detection and Response products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Fidelis Security vs Red Piranha Crystal Eye XDR](https://cybersectools.com/compare/fidelis-security-vs-red-piranha-crystal-eye-xdr)
- [Fidelis Security vs Palo Alto Networks Cortex XSIAM](https://cybersectools.com/compare/fidelis-security-vs-palo-alto-networks-cortex-xsiam)
- [Fidelis Security vs ThreatDefence SecOps Platform](https://cybersectools.com/compare/fidelis-security-vs-threatdefence-secops-platform)
- [SentinelOne vs Red Piranha Crystal Eye XDR](https://cybersectools.com/compare/red-piranha-crystal-eye-xdr-vs-sentinelone)
- [SentinelOne vs Palo Alto Networks Cortex XSIAM](https://cybersectools.com/compare/palo-alto-networks-cortex-xsiam-vs-sentinelone)
- [SentinelOne vs ThreatDefence SecOps Platform](https://cybersectools.com/compare/sentinelone-vs-threatdefence-secops-platform)

## Alternatives to each

- [See all Fidelis Security alternatives](https://cybersectools.com/alternatives/fidelis-security)
- [See all SentinelOne alternatives](https://cybersectools.com/alternatives/sentinelone)

---

Source: https://cybersectools.com/compare/fidelis-security-vs-sentinelone

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

More on Fidelis Security and SentinelOne: 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