QU4RTET is the older company (2021 vs 2017); Chainguard is the larger of the two.
Side-by-Side Comparison
| Metric | Chainguard | QU4RTET |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2017 older |
| Headquarters | ||
| Headquarters | Kirkland, United States | Dallas, United States |
| Employees | ||
| Employees | 734 larger | 0-1 |
| Industry | ||
| Industry | Cloud Infrastructure, Developer Tools, Enterprise Software | Information Technology, Pharmaceutical |
| Funding Stage | ||
| Funding Stage | Series C | Not tracked yet |
| Total Funding | ||
| Total Funding | $256.00M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 4 | Not tracked yet |
| Services | ||
| Services | Chainguard Containers, Chainguard Libraries, Chainguard VMs, Chainguard OS Packages, Chainguard Actions, Chainguard Agent Skills, Chainguard Factory | Not tracked yet |
| Target Customers | ||
| Target Customers | Engineering Teams, Security Teams, Public Sector Organizations, Startups, Highly Regulated Industries, Tech Companies | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Open Source, Software Supply Chain Security, Zero-trust Principles, Container Images, Software Development, Production-ready Builds, Enterprise Solutions, AI Agent Support, Venture-backed, Hardened Software, Fortune 500 Clients, Secure Software Lifecycle, Supply Chain Protection | Open-source, EPCIS Platform, QU4RTET, Capital Investors, Developer Resources, GitLab, Serialization, Public Domain, Code Collaboration, Industry Knowledge, Beta Phase, Software Development, Technology, Investment |
| Website | ||
| Website | chainguard.dev | qu4rtet.com |
About Chainguard
Chainguard, founded in 2021, offers businesses a trusted avenue for integrating open source solutions. Positioned at the intersection of Cloud Infrastructure, Developer Tools, Enterprise Software, IT, and Privacy and Security, it specializes in delivering hardened, secure, and production-ready build...
About QU4RTET
QU4RTET is an open-source product, positioning itself as The Open-Source EPCIS Platform. The company prides itself on its perpetual open-source code that falls under the public domain once released. Backed by experienced developers with extensive industry knowledge, QU4RTET has enjoyed historical su...
We will tell you when either one moves
BounceWatch watches Chainguard and QU4RTET for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Chainguard and QU4RTET — by email.
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Compiled from the BounceWatch company index. We last looked at Chainguard on 16 Jul 2026, and QU4RTET on 13 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.