# Primary vs TrustFour: side-by-side comparison (2026)

[Primary](https://cybersectools.com/tools/primary) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Primary](https://cybersectools.com/companies/primary). [TrustFour](https://cybersectools.com/tools/trustfour) is a commercial [non-human identity](https://cybersectools.com/categories/non-human-identity) solution by [TrustFour](https://cybersectools.com/companies/trustfour). Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | Primary | TrustFour |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Agentic AI Security | Non-Human Identity |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| Company | Primary | TrustFour |
| Headquarters | – | – |

### Use cases and capabilities

| | Primary | TrustFour |
|---|---|---|
| Agentic AI Security | Yes | Yes |
| Zero Trust Architecture | Yes | – |
| Non-Human Identity | Yes | Yes |
| AI Governance | Yes | – |
| Least Privilege | Yes | Yes |
| Observability | Yes | – |
| AI Gateway | Yes | – |
| ZTNA | Yes | – |
| Policy | Yes | – |
| Workflow | Yes | – |
| TLS | – | Yes |
| Workload Security | – | Yes |
| Quantum Safe | – | Yes |
| Kubernetes Security | – | Yes |
| GenAI Security | – | Yes |
| Lateral Movement | – | Yes |

### Core features

**Primary**

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

**TrustFour**

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

## Primary vs TrustFour FAQ

Common questions when comparing Primary vs TrustFour for agentic AI security.

### What is the difference between Primary and TrustFour?

**Primary**: Control plane for governing human & AI agent identities, access, and workflows. Built by Primary.

**TrustFour**: TLS control plane securing NHIs via mTLS, ephemeral PSKs, and workload policy. Built by TrustFour.

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

### Who makes Primary and TrustFour?

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

### Is Primary a good alternative to TrustFour?

In part. Primary and TrustFour are not in the same category on CybersecTools. Both cover Non-Human Identity, Least Privilege, Agentic AI Security. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Primary vs Primary Agentic Control Plane](https://cybersectools.com/compare/primary-vs-primary-agentic-control-plane)
- [Primary vs Primary Zero Trust Architecture](https://cybersectools.com/compare/primary-vs-primary-zero-trust-architecture)
- [Primary vs FIOR AI Gateway](https://cybersectools.com/compare/fior-ai-gateway-vs-primary)
- [TrustFour vs Primary Agentic Control Plane](https://cybersectools.com/compare/primary-agentic-control-plane-vs-trustfour)
- [TrustFour vs Primary Zero Trust Architecture](https://cybersectools.com/compare/primary-zero-trust-architecture-vs-trustfour)
- [TrustFour vs FIOR AI Gateway](https://cybersectools.com/compare/fior-ai-gateway-vs-trustfour)

## Alternatives to each

- [See all Primary alternatives](https://cybersectools.com/alternatives/primary)
- [See all TrustFour alternatives](https://cybersectools.com/alternatives/trustfour)

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Source: https://cybersectools.com/compare/primary-vs-trustfour

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More on Primary and TrustFour: 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