Hexens audits blockchain systems and offers continuous threat exposure monitoring, alongside research on smart contract platform vulnerabilities.
Zellic
Zellic provides security assessments for emerging technologies, using offensive security research to identify software vulnerabilities.
About Zellic
Zellic provides security assessments for emerging technologies, reviewing code to identify software vulnerabilities. Described work includes smart contracts, ZK circuits, and protocol code.
Reviews involve the client throughout with daily communication, and clients can request techniques such as formal verification or fuzzing. Work is done as a code review engagement, and reports and case studies are published for reference.
Key features
- Code reviews for smart contracts and associated applications
- Security reviews of ZK circuits including underconstrained issues
- Protocol code assessments for blockchain systems
- Daily client communication during the review process
- Formal verification or fuzzing when requested by client
- Published assessment reports and case studies
Best for: Developers, founders, and investors working on blockchain protocols, smart contracts, or ZK circuits who need an external code review.
Good for
- Background in real-world offensive security research
- Keeps clients involved throughout with daily communication
- Publishes assessment reports and case studies for reference
Zellic at a glance
- Website
- zellic.io
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Zellic FAQ
What types of code does Zellic review?
Smart contracts, ZK circuits, and protocol code, based on described client work.
How do clients participate in a review?
Zellic states it keeps clients involved from start to finish with daily communication and takes requests for techniques such as formal verification or fuzzing.
Are past assessment results available?
Yes, Zellic publishes reports and case studies, including 2025 figures for critical and high-impact findings.
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