# Checkmarx One Assist vs Start Left® IaC Security: side-by-side comparison (2026)

[Checkmarx One Assist](https://cybersectools.com/tools/checkmarx-one-assist) is a commercial [application security posture management](https://cybersectools.com/categories/aspm) solution by [Checkmarx](https://cybersectools.com/companies/checkmarx). [Start Left® IaC Security](https://cybersectools.com/tools/start-leftr-iac-security) is a commercial [static application security testing](https://cybersectools.com/categories/sast) solution by [Start Left® Security](https://cybersectools.com/companies/start-leftr-security). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Checkmarx One Assist | Start Left® IaC Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Application Security Posture Management | Static Application Security Testing |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Checkmarx | Start Left® Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Checkmarx One Assist | Start Left® IaC Security |
|---|---|---|
| CI/CD | Yes | Yes |
| DevSecOps | Yes | Yes |
| SCA | Yes | – |
| Secret Detection | Yes | – |
| Infrastructure as Code | Yes | Yes |
| Misconfiguration | – | Yes |
| Secure Development | – | Yes |

### Core features

**Checkmarx One Assist**

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

**Start Left® IaC Security**

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

### Integrations

**Checkmarx One Assist**

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

**Start Left® IaC Security**

No integrations listed.

## Checkmarx One Assist vs Start Left® IaC Security FAQ

Common questions when comparing Checkmarx One Assist vs Start Left® IaC Security for application security posture management.

### What is the difference between Checkmarx One Assist and Start Left® IaC Security?

**Checkmarx One Assist**: AI-powered AppSec platform with agentic agents for vulnerability prevention & fix. Built by Checkmarx.

**Start Left® IaC Security**: Scans IaC templates for misconfigs and vulns before deployment. Built by Start Left® Security.

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

### Who makes Checkmarx One Assist and Start Left® IaC Security?

**Checkmarx One Assist** is made by Checkmarx. **Start Left® IaC Security** is made by Start Left® Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Checkmarx One Assist a good alternative to Start Left® IaC Security?

In part. Checkmarx One Assist and Start Left® IaC Security are not in the same category on CybersecTools. Both cover Infrastructure as Code, DevSecOps, CI/CD. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Checkmarx One Assist vs JFrog Advanced Security](https://cybersectools.com/compare/checkmarx-one-assist-vs-jfrog-advanced-security)
- [Checkmarx One Assist vs Legit VibeGuard](https://cybersectools.com/compare/checkmarx-one-assist-vs-legit-vibeguard)
- [Checkmarx One Assist vs Datadog Code Security](https://cybersectools.com/compare/checkmarx-one-assist-vs-datadog-code-security)
- [Start Left® IaC Security vs JFrog Advanced Security](https://cybersectools.com/compare/jfrog-advanced-security-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs Legit VibeGuard](https://cybersectools.com/compare/legit-vibeguard-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs Datadog Code Security](https://cybersectools.com/compare/datadog-code-security-vs-start-leftr-iac-security)

## Alternatives to each

- [See all Checkmarx One Assist alternatives](https://cybersectools.com/alternatives/checkmarx-one-assist)
- [See all Start Left® IaC Security alternatives](https://cybersectools.com/alternatives/start-leftr-iac-security)

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Source: https://cybersectools.com/compare/checkmarx-one-assist-vs-start-leftr-iac-security

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More on Checkmarx One Assist and Start Left® IaC 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