# Sec1 ProSAST vs Start Left® IaC Security: side-by-side comparison (2026)

[Sec1 ProSAST](https://cybersectools.com/tools/sec1-prosast) is a commercial [static application security testing](https://cybersectools.com/categories/sast) solution by [Sec1](https://cybersectools.com/companies/sec1). [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.

Need the answer fast? [Best SAST Solutions for Business](https://cybersectools.com/shortlists/best-sast-solutions) picks Checkmarx One Application Security Platform, Veracode Application Risk Management Platform, OpenText Fortify SAST and 4 more.

## Side-by-side comparison

| | Sec1 ProSAST | Start Left® IaC Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Static Application Security Testing | Static Application Security Testing |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Sec1 | Start Left® Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Sec1 ProSAST | Start Left® IaC Security |
|---|---|---|
| CI/CD | Yes | Yes |
| DevSecOps | Yes | Yes |
| Source Code Analysis | Yes | – |
| Infrastructure as Code | – | Yes |
| Misconfiguration | – | Yes |
| Secure Development | – | Yes |

### Core features

**Sec1 ProSAST**

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

**Sec1 ProSAST**

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

**Start Left® IaC Security**

No integrations listed.

## Which one fits you

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

- [Sec1 ProSAST](https://cybersectools.com/tools/sec1-prosast) fits if you are a startup.

## Sec1 ProSAST vs Start Left® IaC Security FAQ

Common questions when comparing Sec1 ProSAST vs Start Left® IaC Security for static application security testing.

### What is the difference between Sec1 ProSAST and Start Left® IaC Security?

**Sec1 ProSAST**: SAST tool that identifies vulnerabilities in source code across 30+ languages. Built by Sec1.

**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 Sec1 ProSAST and Start Left® IaC Security?

**Sec1 ProSAST** is made by Sec1. **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 Sec1 ProSAST a good alternative to Start Left® IaC Security?

Often, yes. Sec1 ProSAST and Start Left® IaC Security are both Static Application Security Testing products, and both cover DevSecOps, CI/CD. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Sec1 ProSAST vs Aikido Infrastructure as Code (IaC)](https://cybersectools.com/compare/aikido-infrastructure-as-code-iac-vs-sec1-prosast)
- [Sec1 ProSAST vs Meterian ISAAC](https://cybersectools.com/compare/meterian-isaac-vs-sec1-prosast)
- [Sec1 ProSAST vs Bearer](https://cybersectools.com/compare/bearer-vs-sec1-prosast)
- [Start Left® IaC Security vs Aikido Infrastructure as Code (IaC)](https://cybersectools.com/compare/aikido-infrastructure-as-code-iac-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs Meterian ISAAC](https://cybersectools.com/compare/meterian-isaac-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs Bearer](https://cybersectools.com/compare/bearer-vs-start-leftr-iac-security)

## Alternatives to each

- [See all Sec1 ProSAST alternatives](https://cybersectools.com/alternatives/sec1-prosast)
- [See all Start Left® IaC Security alternatives](https://cybersectools.com/alternatives/start-leftr-iac-security)

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Source: https://cybersectools.com/compare/sec1-prosast-vs-start-leftr-iac-security

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More on Sec1 ProSAST 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