CISO Tribune

Vendor comparison · 2 companies

Chainguard vs Socket

Chainguard sells hardened open source artifacts that replace vulnerable or malicious versions found publicly. Socket offers a developer-first platform that blocks malicious packages before they reach the code of its users. CISO Tribune files both under Software supply chain security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • Chainguard
  • Socket
Chainguard vs Socket: Products, Customers and Funding Compared
ChainguardChainguard sells hardened open source artifacts that replace vulnerable or malicious versions found publicly.chainguard.devSocketSocket offers a developer-first platform that blocks malicious packages before they reach the code of its users.socket.dev
What it sells
  • Chainguard Containers[7][10][14]Container images for over 3,000 projects, rebuilt continuously.
  • Chainguard Libraries[12]A malware-free catalog of open source dependencies.
  • Chainguard VMs[13]Minimal Linux virtual machine images based on Chainguard OS.
  • Chainguard OS Packages[14]30,000+ zero-CVE packages for building custom images.
  • Chainguard Actions[15]A catalog of 1,000+ hardened third-party actions.
  • Chainguard Guardener[10]A migration tool that rebuilds Dockerfiles layer by layer.
  • Chainguard Workspaces[19]Chainguard-hardened microVMs that isolate untrusted code.
  • Socket Firewall[1][3]Blocks malicious packages at install.
  • Socket for GitHub[1][3]Catches risky dependency additions and malicious updates in pull requests before they merge.
  • Dependency Search[1][3]Shows security insights for open source packages across every major registry.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately held[2][3][5][9]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • November 3, 2026Chainguard introduced Chainguard Harness, an offering for hunting exploitable vulnerabilities in a running application, and opened its beta waitlist.[21]
  • August 17, 2026Chainguard announced that its Chainguard Containers reached SLSA Build Level 3.[7]
  • July 21, 2026Booz Allen Hamilton signed an enterprise license agreement with Chainguard.[8]
  • June 15, 2026Chainguard and partner organizations announced Athena, an industry coalition for the orchestrated defense of open source software.[22]
  • May 20, 2026Socket announced a $60 million Series C funding round at a $1 billion valuation, led by Thrive Capital.[7]
G2 and Gartner Peer Insights
  • G2: listed, seen November 3, 2026[9]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Chainguard sells mainly to engineering and security teams whose developers and AI agents pull open source software. Chainguard says its FIPS-validated container variants and OS-level STIG hardening are available for regulated environments. Chainguard addresses vendors handling cardholder data that face PCI DSS vulnerability management requirements. Chainguard says its VMs run across cloud and on-premise environments. Chainguard names compliance frameworks such as FedRAMP and CMMC among those its zero-CVE images help with.Socket says it serves industries including technology, media, healthcare and finance. Socket describes its platform as developer-first. Socket describes one of its plans as meant for building solo or in a small team.
Last verified
September 27, 2026November 5, 2026

Where they overlap

  • Software supply chain security is the primary category of both Chainguard and Socket.

Where they differ, field by field

  • Socket is also filed under Software composition analysis.
  • Chainguard lists Chainguard Containers, Chainguard Libraries, Chainguard VMs, Chainguard OS Packages, Chainguard Actions and 2 more. Socket lists Socket Firewall, Socket for GitHub and Dependency Search.
  • Chainguard is privately held.

How they differ

CISO Tribune files Chainguard under Software supply chain security, and files Socket under Software supply chain security and Software composition analysis, with the first category primary for both. Chainguard sells hardened open source artifacts: Chainguard Containers (images for over 3,000 projects), Chainguard Libraries (a malware-free catalog of open source dependencies), Chainguard VMs, Chainguard OS Packages and Chainguard Actions. Socket sells tools that inspect and block packages: Socket Firewall blocks malicious packages at install, and Socket for GitHub catches risky dependency additions and malicious updates in pull requests before they merge. Socket also sells Dependency Search, which shows security insights for open source packages across every major registry.

Chainguard is privately held. Socket announced a $60 million Series C funding round at a $1 billion valuation on May 20, 2026, led by Thrive Capital. Socket was founded in 2021. Chainguard says its FIPS-validated container variants and OS-level STIG hardening are available for regulated environments. Socket says it serves industries including technology, media, healthcare and finance.

Chainguard names Shift5, Canva and the Army Software Factory in its customer claims. On July 21, 2026, Booz Allen Hamilton signed an enterprise license agreement with Chainguard. On November 3, 2026, Chainguard introduced Chainguard Harness and opened its beta waitlist. On August 17, 2026, Chainguard announced that its Chainguard Containers reached SLSA Build Level 3.

What it sells: Chainguard

What Chainguard Containers does[7][10][14]
Chainguard offers container images for over 3,000 projects, and hundreds of Helm charts, rebuilt continuously in a SLSA Level 3 environment. Custom Assembly configures Chainguard Factory to build images to a customer's specifications. Chainguard offers over 1,200 FIPS-validated container variants and OS-level STIG hardening for regulated environments. Every Chainguard image ships with Sigstore signatures, a signed SBOM and SLSA L2 provenance.
What Chainguard Libraries does[12]
Chainguard Libraries is a malware-free catalog of open source dependencies. Chainguard offers a catalog of Python, Java, JavaScript, Go and .NET packages. Chainguard Libraries works with existing artifact managers and workflows.
What Chainguard VMs does[13]
Chainguard VMs are minimal Linux images based on Chainguard OS and come in three types. Chainguard VMs support AWS, Azure, Google Cloud and on-premise hypervisors including VMware, Nutanix and OpenStack. Chainguard VMs carry a CVE remediation SLA of 7 days for critical and 14 days for high, medium, and low through automated rebuilds.
What Chainguard OS Packages does[14]
Chainguard offers 30,000+ zero-CVE packages, including every package powering Chainguard Containers. Chainguard OS Packages has a FIPS variant built with the latest versions of Chainguard's FIPS-validated cryptographic modules.
What Chainguard Actions does[15]
Chainguard Actions are drop-in replacements for upstream GitHub Actions. Every Chainguard Action ships with a full hardening report.
What Chainguard Guardener does[10]
Chainguard Guardener analyzes and rebuilds Dockerfiles layer by layer, maps packages and tests incrementally. Guardener opens a migration pull request for all actions with a drop-in Chainguard equivalent.
What Chainguard Workspaces does[19]
Chainguard Workspaces isolates untrusted code inside Chainguard-hardened microVMs. Chainguard Workspaces is currently in beta and is a Technology Preview.

What it sells: Socket

What Socket for GitHub does[1][3]
Socket for GitHub catches risky dependency additions and malicious updates in pull requests before they merge. A GitHub account is connected so that Socket can access and scan the repositories, and customers choose the repositories that Socket protects automatically. Socket can run on a CI/CD pipeline and creates a report for review. Socket creates a project health report for a project.
What Dependency Search does[1][3]
Dependency Search shows security insights for millions of open source packages across every major registry. Socket lets a user look up supply chain risks for a given version of a package in the ecosystem registry.

Questions about Chainguard and Socket

What do Chainguard and Socket sell?
Chainguard sells Chainguard Containers, Chainguard Libraries, Chainguard VMs, Chainguard OS Packages, Chainguard Actions and 2 more. Socket sells Socket Firewall, Socket for GitHub and Dependency Search.
Are Chainguard and Socket in the same category?
Yes. Software supply chain security is the primary category of both on CISO Tribune.
Who owns Chainguard and Socket?
Chainguard is privately held.
Who are Chainguard and Socket sold to?
From its own pages, Chainguard sells mainly to engineering and security teams whose developers and AI agents pull open source software. Socket says it serves industries including technology, media, healthcare and finance.
What have Chainguard and Socket announced recently?
November 3, 2026: Chainguard introduced Chainguard Harness, an offering for hunting exploitable vulnerabilities in a running application, and opened its beta waitlist. May 20, 2026: Socket announced a $60 million Series C funding round at a $1 billion valuation, led by Thrive Capital.

About Chainguard

Chainguard sells hardened open source artifacts that replace vulnerable or malicious versions found publicly. Chainguard says it aims to eliminate malware and vulnerability risk across containers, dependencies, CI/CD actions and AI agent skills. Chainguard hardens open source before developers start writing a single line of code.[1][10]

Chainguard offers container images for over 3,000 projects, and hundreds of Helm charts, rebuilt continuously by AI reconciler agents in a SLSA Level 3 environment. Every Chainguard image ships with Sigstore signatures, a signed SBOM and SLSA L2 provenance. Chainguard Factory tracks upstream changes, triggers clean rebuilds and publishes new images with updated SBOMs and provenance. Custom Assembly configures Chainguard Factory to build images to a customer's specifications, using 30,000+ packages. Chainguard gives direct access to the APKs underpinning entitled Chainguard Containers. Chainguard offers updated EOL images with low-to-zero CVEs for up to 6 months to help teams transition off legacy software. Chainguard extends its secure-by-default standard to commercial ISV software.[1][10]

Chainguard offers over 1,200 FIPS-validated container variants and OS-level STIG hardening for regulated environments. Chainguard says zero-CVE images, signed SBOMs and full provenance simplify compliance across frameworks like FedRAMP, PCI DSS, SOC 2, CMMC and CRA. Chainguard says PCI DSS vulnerability management requirements create significant overhead for vendors handling cardholder data. Chainguard says Shift5 saved 2.5 months of engineering time per person on CVE remediation. Chainguard says Canva dodged hundreds of thousands of malware attacks on npm and PyPI. Chainguard says the Army Software Factory freed up 40% of developer time for mission-enabling innovation.[10][11][13]

Chainguard Libraries is a malware-free catalog of open source dependencies. Chainguard offers a catalog of Python, Java, JavaScript, Go and .NET packages so teams can turn off live access to public registries. Chainguard says customers switch standard registry endpoints to Chainguard to prevent malware and shrink the CVE backlog. Chainguard Libraries works with existing artifact managers and workflows. Chainguard says every Chainguard-built version comes with full provenance and signed SBOMs. Chainguard says every remediated package includes embedded SLSA L3 provenance and SBOMs. Chainguard says every package is scanned for malicious behavior before distribution. Chainguard Repository provides every package needed on day one and lets customers configure cooldowns.[12]

Chainguard VMs are minimal Linux images based on Chainguard OS and come in three types. Chainguard VMs include only the essential components for running containers: a Linux kernel, systemd, glibc, and optional userspace tools like SSH. Chainguard VMs support AWS, Azure, Google Cloud and on-premise hypervisors including VMware, Nutanix and OpenStack. Chainguard VMs carry a CVE remediation SLA of 7 days for critical and 14 days for high, medium, and low through automated rebuilds. Chainguard VMs support kernel-independent FIPS 140-3-validated cryptography. Chainguard VMs offer DISA STIG hardening and CIS Benchmark Level 1 hardening.[13]

Chainguard offers 30,000+ zero-CVE packages, including every package powering Chainguard Containers. Chainguard says secure packages can be swapped in whether a team builds with Bazel, Melange, Dockerfiles or another tool. Chainguard says every artifact ships with build-time generated SBOMs. Chainguard OS Packages has a FIPS variant built with the latest versions of Chainguard's FIPS-validated cryptographic modules. Chainguard offers a catalog of 1,000+ hardened third-party actions. Chainguard Actions are drop-in replacements for upstream GitHub Actions. Chainguard re-verifies and rehardens every action whenever its upstream version changes or a new attack pattern emerges. Every Chainguard Action ships with a full hardening report. Chainguard Guardener analyzes and rebuilds Dockerfiles layer by layer, maps packages and tests incrementally. Guardener opens a migration pull request for all actions with a drop-in Chainguard equivalent. Chainguard offers 1,000+ hardened community skills that are safe from malicious instructions.[10][14][15][16]

Chainguard says reconciler bots and AI agents run continuously across its entire catalog. Chainguard says every package is rebuilt from source in an isolated SLSA L3 environment on its own minimal OS. Chainguard says every build starts with an immutable SHA reference to the upstream source. Chainguard says it signs every artifact it ships. Chainguard says every image is rebuilt with a separate apko toolchain to produce a bitwise-equivalent result.[1][17]

Chainguard Checks runs CI inside Chainguard microVMs that produce cryptographically signed attestations. Chainguard Checks is currently in beta and is a Technology Preview. Chainguard Workspaces isolates untrusted code inside Chainguard-hardened microVMs. Chainguard Workspaces is currently in beta and is a Technology Preview. Chainguard Harness builds an application from source in an isolated environment and lets Mythos 5.1 hunt through a live instance for exploitable vulnerabilities. Chainguard Harness is currently in beta and is a Technology Preview.[1][4][6][18][19][20]

Chainguard on the record

Sources

Chainguard full record

  1. [1]chainguard.devChainguard · chainguard.dev · undated page, accessed September 27, 2026 · Tier A
  2. [2]Chainguard announces 280 million growth financing from general catalyst to usher in next era of trusted open source software 302592279Chainguard via PR Newswire · prnewswire.com · published October 23, 2025 · Tier A
  3. [3]Chainguard for the Public Sector | Secure OSSChainguard · undated page, accessed October 23, 2026 · Tier A
  4. [4]Chainguard for Financial Services | Prevent cyber attacksChainguard · undated page, accessed October 23, 2026 · Tier A
  5. [5]The trusted source for open source | ChainguardChainguard · undated page, accessed October 23, 2026 · Tier A
  6. [6]Chainguard for Startups | Scale fast and securelyChainguard · undated page, accessed October 23, 2026 · Tier A
  7. [7]Proven, not promised: Chainguard Containers achieves SLSA Build Level 3Chainguard · published August 17, 2026 · Tier A
  8. [8]Booz Allen Hamilton signs enterprise license agreement with ChainguardChainguard · published July 21, 2026 · Tier A
  9. [9]Chainguard Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 23, 2026 · Tier C
  10. [10]Chainguard Containers | 3,000+ hardened container imagesChainguard · undated page, accessed November 3, 2026 · Tier A
  11. [11]Simplify PCI-DSS Requirements with ChainguardChainguard · undated page, accessed November 3, 2026 · Tier A
  12. [12]Chainguard Libraries | Secure Open Source DependenciesChainguard · undated page, accessed November 3, 2026 · Tier A
  13. [13]Chainguard VMs | Secure your virtual machine imagesChainguard · undated page, accessed November 3, 2026 · Tier A
  14. [14]Chainguard OS Packages | 30,000+ secure packagesChainguard · undated page, accessed November 3, 2026 · Tier A
  15. [15]Chainguard Actions | Secure-by-default CI/CD workflowsChainguard · undated page, accessed November 3, 2026 · Tier A
  16. [16]Chainguard Guardener | Easy, AI-assisted migrationChainguard · undated page, accessed November 3, 2026 · Tier A
  17. [17]Chainguard Factory | ChainguardChainguard · undated page, accessed November 3, 2026 · Tier A
  18. [18]Chainguard Checks | Ship through trusted CIChainguard · undated page, accessed November 3, 2026 · Tier A
  19. [19]Chainguard Workspaces | Code safely with agentsChainguard · undated page, accessed November 3, 2026 · Tier A
  20. [20]Chainguard Harness | Eliminate CVE and malware exposureChainguard · undated page, accessed November 3, 2026 · Tier A
  21. [21]Everything we announced at Chainguard Assemble London 2026Chainguard · published November 3, 2026 · Tier A
  22. [22]Chainguard Launches Athena, the Industry Coalition to Fix Open Source Vulnerabilities Before Attackers Can Find ThemPR Newswire · published June 15, 2026 · Tier A

Socket full record

  1. [1]socket.devSocket · socket.dev · undated page, accessed November 5, 2026 · Tier A
  2. [2]Redefining Supply Chain Security - SocketSocket · undated page, accessed November 10, 2026 · Tier A
  3. [3]Socket - Block zero-day supply chain attacksSocket · undated page, accessed November 10, 2026 · Tier A
  4. [4]What is SocketSocket · undated page, accessed November 10, 2026 · Tier A
  5. [5]Socket for GitHubSocket · undated page, accessed November 10, 2026 · Tier A
  6. [6]Pricing - SocketSocket · undated page, accessed November 10, 2026 · Tier A
  7. [7]Socket raises $60M Series C at $1B valuation led by Thrive Capital to secure AI-driven software development | SocketSocket · published May 20, 2026 · Tier A

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