HIGH-ASSURANCE ENGINEERING
We audit and build code that has one chance to be correct
Dquadrant is a precision engineering studio for high-assurance software. We write and audit smart contracts, build AI agents, and review the systems around them.
We take our time and check our work, because the systems we work on can’t afford mistakes.
WHY DQUADRANT
Claims you can check
You don’t have to take our word for it.
01
Engineering high-stakes on-chain systems since 2017, before Cardano even had smart contracts.
02
Trusted development partner of Input Output since 2020, on some of the most complex protocol code in production.
03
Trusted auditing and assurance partner of Intersect MBO since 2023.
04
Appointed to the Oversight Committee for checks and balances on treasury disbursements.
WHAT WE DO
The same checks, whether we’re reviewing code or writing it
We check code before it runs and test systems while they’re running.
01 / AUDITS
Audits
Independent code and security audits of complex, adversarial systems. Where a defect is unrecoverable, we read the code the way an attacker would. Then we verify every finding before we close out.
Read more →02 / REVIEWS
Assurance Reviews
Structured evidence-gathering at a defined, lower level of rigor than a full audit. It's the right depth when you need documented confidence, not a formal verdict.
Read more →03 / AUTOMATION
AI agents · Automation
Autonomous agents built and governed to the same standard as the systems they touch: limited permissions, logged decisions and safe defaults. We also use agents to test live systems at scale and find what scripted tests miss.
Read more →04 / DEVELOPMENT
Development
Smart contracts, off-chain infrastructure and the tooling around them. We build them to pass the audit that follows.
Read more →PROOF OF EXECUTION
Six years with Input Output. Two hard forks. No rollbacks.
Since 2020 we’ve worked alongside Input Output’s engineers on changes to live systems, where there’s no second attempt.
CONTINUITY
Since 2020
We’ve been a development, audit and assurance partner to Input Output for six years. Clients often change vendors. Input Output has kept working with us.
LIVE NETWORK CHANGE
2 hard forks
Coordinated breaking changes shipped to a running, high-value network with no downtime and no lost funds.
CRYPTOGRAPHIC ASSURANCE
SECP256K1 extensions
Evidence-based verification of cryptographic curve extensions. It’s the same primitive securing Bitcoin, Ethereum, and much of the world’s digital signatures. A mistake here can’t be undone.
Statistics 25/26
8
Audits completed
59
Assurance reviews completed
15
Treasury disbursements
100%
Findings verified before close-out
TRUSTED BY
“Dquadrant partners with IOLabs to audit code from multiple angles, taking on incredibly complex codebases and delivering outstanding rigor under tight timelines.”
Geoff (Jeff) Watson, Director of Technology - Input Output
“I have worked with Dquadrant for over four years, across a wide range of technically demanding and often critical pieces of work. Their understanding of Cardano is exceptional, but what has consistently stood out to me is the breadth and depth of their technical expertise beyond any single technology or domain.”
Lorenzo Bruno, Product & Membership Sector Lead - Intersect MBO
SOLUTIONS
Products we've built
Autonomous Agent Testing
Gov.tools DApp testing at scale with simulated agents.
KuberIDE
Build/test/deploy Plutus contracts in-browser.
Mempool Explorer
Real-time transaction flow visibility.
NFT marketplace
Minting, Buy/Sell, English auction, iNFTs.
How We Work
Discovery to delivery
01
Discovery
02
Scope & Proposal
03
Build - Audit - Assurance
04
Delivery & Support
Have a system that needs to be correct?
Tell us what you're building. We'll tell you honestly whether we're the right fit and what level of rigor your system actually needs.
Book a meeting