Overview
Ensurable Systems is a software engineering company that designs and builds core blockchain software for clients who need systems to work reliably. Its work runs from consensus research, the study of how a network agrees on which transactions count, to building tooling for partner chains, separate blockchains that reuse Cardano's code and stay linked to it1,2. It suits organizations that want protocol-level engineering rather than an app or website.
Ensurable Systems is a private limited company registered in Scotland, with its office in Edinburgh3. Kevin Hammond (CEO), who led Cardano core engineering at Input Output, co-founded it with Philipp Kant (CTO), formerly Input Output's Director of Formal Methods and Technical Director for Cardano4. A Blockleaders profile of Hammond describes the company's aim as custom protocol, ledger and consensus design that builds on Cardano without being limited to the main Cardano network5.
Key Features
- A proposed faster protocol for partner chains. Philipp Kant co-authored CIP-177, the Cardano Improvement Proposal for Ouroboros Tachýs, a variant of Cardano's consensus protocol designed for partner chains rather than the main network, aiming to process more transactions and confirm them faster6.
- A plan for launching partner chains in hours. Ensurable Systems led a six-organization proposal to the Cardano treasury for a partner chain factory, shared tooling meant to take a new chain from specification to running network in hours rather than months2.
- A proposed security red team. With Well-Typed, PNSol and QuviQ, Ensurable Systems proposed STAG, a red team (a group paid to attack a system and find weaknesses first) that the Cardano treasury would fund, covering smart contracts, ledger rules, consensus and networking7.
- Help keeping Cardano running. Ensurable Systems signed on as a co-delivery partner for the IO & Ensurable Systems Cardano Maintenance Initiative, which covers bug fixes, security patches, node support and releases for Cardano's core software8. Cardano's DReps, the elected community representatives who vote on treasury spending, ratified the funding, and it was enacted on-chain9.
What to Expect
The Ensurable Systems website is a short company site rather than a product. It has a mission statement, a team page, a partners page, a blog, a contact form and an email newsletter sign-up, but no product to download1.
For organizations, the contact form is the main way in. It invites enquiries about software development services and about what a shared digital ledger could do for a business1. The partners page lists the firms the company works with, including Well-Typed, PNSol, HAL8, Apex Fusion and Ethernal10.
For the Cardano community, the blog holds the company's posts on its treasury proposals, Ouroboros Tachýs and Cardano maintenance. Its categories cover the 2026 Cardano budget, Ouroboros Tachýs, partner chains, Cardano maintenance, security, treasury improvements, Babel fees (paying network fees in tokens other than ADA) and zero-knowledge proofs, a way to prove something is true without revealing the underlying data1. Readers new to the topic can start with ADAStack's guide to what partner chains are.
For developers, the blog explains where Tachýs came from. Apex Fusion built its Vector and Prime networks on Cardano's code, and Ensurable Systems co-founders Kevin Hammond and Philipp Kant turned what they learned into something other partner chains could reuse11. The same post sets out a design principle: partner chains should share incentives and governance with Cardano and return value to it, not pull users away11.
