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Top 10 Application Security Companies (Updated July 2026)

Application security (AppSec) protects software throughout its development lifecycle, scanning code, open-source dependencies, and cloud-native infrastructure for vulnerabilities before attackers can exploit them. As AI-generated code and software supply chains have expanded the attack surface, the category has moved from late-stage scanning toward real-time, developer-native security built directly into the coding process.

Ranked list

  1. Veracode

    One of the most widely deployed enterprise AppSec platforms, combining SAST, DAST, SCA, and manual penetration testing in one system. Introduced Package Firewall in January 2026 to block malicious open-source packages before they enter development pipelines.

    Best for: Large enterprises wanting a single consolidated AppSec platform with strong compliance reporting.

  2. Checkmarx

    A long-standing leader in static application security testing (SAST), commonly used in large enterprises with formal AppSec programs, offering deep policy-driven governance and broad language support.

    Best for: Enterprises with mature, formal AppSec programs needing deep SAST coverage.

  3. Snyk

    A developer-first platform covering software composition analysis, container, and infrastructure-as-code security, deeply embedded in modern CI/CD pipelines and IDEs.

    Best for: Engineering teams wanting security checks built directly into developer workflows.

  4. Contrast Security

    Differentiated by an instrumentation-based approach, combining Interactive Application Security Testing (IAST) and Runtime Application Self-Protection (RASP) to detect vulnerabilities and attacks throughout the software lifecycle, including in production.

    Best for: Organizations wanting real-time protection that extends into runtime, not just pre-deployment scanning.

  5. OpenText (Fortify)

    A unified AppSec platform built to scan very large codebases and high-velocity pipelines, correlating security signals across tools into centralized risk dashboards.

    Best for: Enterprises managing very large, complex codebases across multiple teams.

  6. Mend.io

    Positions itself as an AI-native AppSec platform with a specific focus on securing AI-generated code and AI components, including AI bill-of-materials (AI-BOMs) for full visibility.

    Best for: Organizations concerned about risk introduced by AI-generated or AI-assisted code.

  7. Cycode

    Focused on code risk visibility and software supply-chain security across GitHub repositories and CI/CD pipelines.

    Best for: Teams prioritizing supply-chain and repository-level security visibility.

  8. GitLab

    Added advanced SAST capabilities natively within its DevSecOps platform, letting developers catch exploitable vulnerabilities directly inside CI/CD without a separate tool.

    Best for: Teams already using GitLab as their core DevOps platform wanting built-in security scanning.

  9. Ox Security

    A Tel Aviv-based startup founded by former Check Point leaders, offering an "Active ASPM" (Application Security Posture Management) platform covering the full software supply chain.

    Best for: Organizations wanting posture management across the entire software supply chain in one view.

  10. Endor Labs

    A Palo Alto-based, AI-driven AppSec platform focused on secure software development and dependency risk across the supply chain.

    Best for: Engineering teams needing AI-driven prioritization of open-source dependency risk.

Emerging companies to watch

  • Arnica, a pipelineless platform delivering real-time security coverage across every repository and branch without relying on CI/CD triggers
  • Semgrep, a fast, open-source static analysis tool widely adopted for custom rule-based code scanning
  • Backslash Security, a Tel Aviv-based application security startup focused on code-to-cloud risk context

Compiled by B2B Top 10, updated July 2026