Input Output (IOHK)’s cover photo
Input Output (IOHK)

Input Output (IOHK)

Software Development

One of the world's pre-eminent blockchain infrastructure research and engineering companies.

About us

Founded in 2015, IOHK is one of the world’s pre-eminent blockchain research and engineering companies, best known for the Cardano blockchain platform We are a fully decentralized, remote-working organization committed to the highest principles of academic rigour and evidence-based software development. The company builds high-assurance blockchain products for public and private sector clients. Our goal is simple – to fuel our drive to be best in class by giving you the opportunity, resources and support to deliver your finest work to date. You’ll work with some exceptionally talented and friendly individuals who are always open to new ideas and ways of working. IOHK is an advocate of decentralized remote working, with over 300 people working in more than 50 countries. Everyone has a different skill set, a different culture, and is at a different stage in their life. We aim to make collaboration between diverse people fun, exciting, and always rewarding. Many companies say they ‘think outside the box’ – for IOHK it’s more, ‘we think outside the geography’.

Website
https://iohk.io/
Industry
Software Development
Company size
201-500 employees
Headquarters
Singapore
Type
Privately Held
Founded
2014
Specialties
Blockchain, Research, Development, Consultancy, and Education

Products

Locations

Employees at Input Output (IOHK)

Updates

  • The November edition of Essential Cardano360 airs today. This month, we cover the latest advancements driving the ecosystem forward: • Smart contracts: Key takeaways from the UPLC Conference in Edinburgh. • Innovation: Project Catalyst Fund15 updates, including new categories and the return of Quadratic Voting. • Governance: Guidance on metrics from the Beyond MVG project. • Ecosystem builders: Spotlights on DeltaDeFi and Bike ID. Catch the full update to learn about the latest ecosystem updates. Premieres today at 5 p.m. UTC. Watch it here: youtube.com/c/Iohkio

  • Leios has reached a new milestone. A public development tracker is now available, offering a consolidated and transparent view of global work on the protocol. Leios represents a significant step forward for Cardano’s scalability and long-term sustainability. Its journey from peer-reviewed research to active engineering reflects Cardano’s commitment to rigorous, open development. The new tracker highlights: • Overall product progress • Key milestones • Active workstreams • Repository contributions • Ongoing updates shared with the community This launch demonstrates a more open, collaborative, and data-driven way of building core blockchain infrastructure. Check out the Leios development tracker here: https://lnkd.in/eGwcTcxX Learn more in the recent blog post: https://lnkd.in/eGwcTcxX

  • In October, the Leios team delivered measurable progress across simulation, certification, and design. 🔹 A prototype showed how to compress votes into a single certificate. 🔹 New simulations clarified performance under load, while a patched node test harness measured real effects on block diffusion. 🔹 Work progressed on conformance and interfaces. 📰 Read the blog: https://lnkd.in/gzVpUDJq 🎥 Watch the demo: https://lnkd.in/gWUBFEJu

  • High-quality, peer-reviewed research is becoming harder to fund, yet it’s never been more important. The sustainable future of decentralized systems relies on evidence-based innovation. That’s why Input Output (IOHK) Research (IOR) continues to prioritize long-term research investment. We are pleased to issue a new Call for Proposals as part of #Cardano Vision, our multi-year initiative dedicated to advancing the science of decentralized systems. We are inviting academic teams and research groups to contribute to foundational research that will influence the next wave of blockchain innovation. We are specifically seeking proposals in high-impact areas, including: - DSLs for safe smart contract development - Global decentralized identity frameworks - Proof of Useful Work (PoUW) - Next-generation throughput and utility metrics IOR’s evidence-based methodology is designed for impact, combining peer review, formal methods, and a rigorous research-to-deployment lifecycle. This approach ensures that scientific breakthroughs translate directly into practical engineering outcomes across the Cardano ecosystem. If you are working at the critical intersection of academia and applied engineering, we invite you to help us build the future. Learn more about the program and submit your proposal: https://lnkd.in/g_7_8-Ux #ResearchFunding #Web3 #CardanoVision #IOR #DecentralizedSystems #AcademicResearch #BlockchainInnovation

  • We are keeping busy at Input Output (IOHK) and if you're finding it hard to keep up, we have a solution for you ➡️ Sign up for our newsroom - your go-to newsletter for company-wide updates and announcements. What to expect every week: 📩 Key company updates and announcements 📩 Major corporate milestones 📩 Event recaps 📩 And more! Don't miss out on the important details. Sign up today and get the latest delivered straight to your inbox.  Subscribe to IO Newsroom Emails here ➡️ : https://lnkd.in/eiTPMwjU #InputOutput #CorporateNews #Newsletter #CompanyAnnouncements #Blockchain

  • Input Output (IOHK) reposted this

    View profile for Kaitlyn Laughlin Strait

    Talent Acquisition Partner | Executive & Technical Recruiting | Global & Cross-Functional Search | Driving Scalable Hiring Strategies

    Feeling incredibly grateful to work with and for such visionary people at IOG. Moments like #MidnightSummit are a reminder of why this work matters — we’re not just building technology, we’re redefining what digital ownership, privacy, and trust look like for the future. The updates coming out of the Summit have been inspiring, especially seeing Charles’s continued commitment to pushing the boundaries of what privacy and sovereignty can look like in a digital world. His clarity of vision for Midnight sets the tone for the incredible work happening across the organization. Proud to play even a small part in supporting the teams bringing this mission to life. 🌙✨ #Midnight #MidnightSummit #IOG #Blockchain #Web3 #PrivacyTech #Innovation #RationalPrivacy #CharlesHoskinson

    View organization page for Input Output (IOHK)

    83,816 followers

    At the #MidnightSummit, Input Output CEO Charles Hoskinson unveiled a bold vision for how Midnight will redefine data protection and digital ownership across both Web2 and #Web3. Here are some key takeaways from Day 1: 🌙 1. The Core Mission: Preserving Sovereignty Blockchains introduced trust through decentralization. #Midnight extends that trust by giving users true digital ownership and verifiable control over their information, preserving your data without compromising usability. 🌙 2. Proving Without Revealing (The Power of Zero-Knowledge) Midnight enables you to meet a requirement without ever revealing the underlying sensitive data. This is the foundation of rational privacy: - Eligibility: Prove a qualification without exposing the certification. - Compliance: Validate age/status without presenting your ID. - Verification: Meet counterparty requirements without broad data exposure. 🌙 3. Closing the Web2/Web3 Gap Connecting existing enterprise workflows (Web2) with decentralized benefits (Web3) has long been the industry’s biggest adoption gap. Midnight is explicitly designed to close it. Instead of forcing mass migration, Midnight integrates with the tools and workflows people already rely on - making privacy and security an upgrade, not a forced switch. All in all, exciting things ahead for Midnight. Stay tuned for more updates as the Midnight Summit continues to unfold. Full event agenda here: https://lnkd.in/dMFV26Hg #CharlesHoskinson #IOG #Privacy #Web3 #BlockchainAdoption

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  • At the #MidnightSummit, Input Output CEO Charles Hoskinson unveiled a bold vision for how Midnight will redefine data protection and digital ownership across both Web2 and #Web3. Here are some key takeaways from Day 1: 🌙 1. The Core Mission: Preserving Sovereignty Blockchains introduced trust through decentralization. #Midnight extends that trust by giving users true digital ownership and verifiable control over their information, preserving your data without compromising usability. 🌙 2. Proving Without Revealing (The Power of Zero-Knowledge) Midnight enables you to meet a requirement without ever revealing the underlying sensitive data. This is the foundation of rational privacy: - Eligibility: Prove a qualification without exposing the certification. - Compliance: Validate age/status without presenting your ID. - Verification: Meet counterparty requirements without broad data exposure. 🌙 3. Closing the Web2/Web3 Gap Connecting existing enterprise workflows (Web2) with decentralized benefits (Web3) has long been the industry’s biggest adoption gap. Midnight is explicitly designed to close it. Instead of forcing mass migration, Midnight integrates with the tools and workflows people already rely on - making privacy and security an upgrade, not a forced switch. All in all, exciting things ahead for Midnight. Stay tuned for more updates as the Midnight Summit continues to unfold. Full event agenda here: https://lnkd.in/dMFV26Hg #CharlesHoskinson #IOG #Privacy #Web3 #BlockchainAdoption

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  • The last mile of Web2 and Web3 connectivity is here. Welcome, Midnight. In his latest whiteboard session, Charles Hoskinson, CEO and founder of @Input Output, shines a light on @Midnight - the fourth generation of cryptocurrency, designed to solve the final barriers to global blockchain adoption: rational privacy, identity, and cooperation. Built on the same peer-reviewed research and evidence-based engineering that underpin Cardano, Midnight represents the missing link - a secure, compliant, and human-centered bridge between today’s digital systems and tomorrow’s decentralized world. This isn’t just another blockchain. Midnight is an on-ramp for the Web3 curious - empowering developers, enterprises, and individuals to explore new forms of governance, decentralized applications, and economic models that challenge the limits of traditional infrastructure. Midnight's Impact: 🌑 Empowering digital identity: Giving people control over their data & privacy - while still supporting compliance 🌑Built for enterprise & innovation: Enabling trusted collaboration across sectors, unlocking new models of digital trade and cooperation 🌑 A new standard for Web3: Bringing together privacy, compliance, and usability in one framework - paving the way for secure, scalable adoption Watch Charles’ full whiteboard session to learn how Midnight marks the next step toward a truly connected Web3 ecosystem: https://lnkd.in/gZ-BhKg2 #BlockchainEvolution #Midnight #IOG #CharlesHoskinson #Web3 #Privacy #EnterpriseBlockchain

  • Let's reflect on some October development highlights and achievements from across the community: ✨Lace is now available in Spanish ✨The latest Hydra release marks production readiness for real-world deployment ✨Fund14 voting results are out To dive deeper and see more of what's been happening in the #CardanoCommunity, watch this video and follow the weekly development updates here: https://lnkd.in/gHk9ig8Q * Statistics are based on internal IO data and publicly available data.

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