diff --git a/README.md b/README.md
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@@ -561,6 +561,7 @@ Table of Contents
   * [Cmd](https://cmd.com/) — Security platform providing real-time access control and dynamic policy enforcement on every Linux instance in your cloud or datacenter
   * [CodeNotary.io](https://www.codenotary.io/) — Open Source platform with indelible proof to notarize code, files, directories or container
   * [crypteron.com](https://www.crypteron.com/) — Cloud-first, developer-friendly security platform prevents data breaches in .NET and Java applications
+  * [DAS](https://signup.styra.com/) — Styra DAS Free, Full lifecycle policy management to create, deploy and manage Open Policy Agent(OPA) authorization
   * [Datree](https://www.datree.io/) — Open Source CLI tool to prevent Kubernetes misconfigurations by ensuring that manifests and Helm charts follow best practices as well as your organization’s policies
   * [Dependabot](https://dependabot.com/) Automated dependency updates for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java (Maven and Gradle), .NET, Go, Elm, Docker, Terraform, Git Submodules and GitHub Actions.
   * [DJ Checkup](https://djcheckup.com) — Scan your Django site for security flaws with this free, automated, checkup tool. Forked from the Pony Checkup site.