Input Output Global (IOG)
Headquarters
Singapore Singapore
About us
To rebuild the fundamental systems of human collaboration, economics, and value creation from first principles to build accessible financial services for all.
Input Output Global (IOG), formerly IOHK, is a blockchain research and engineering company founded in 2015 that builds the infrastructure behind Cardano and Midnight. With over 600 people across 50+ countries, the team operates as a fully remote, decentralized organization united by a commitment to peer-reviewed research and evidence-based development. IOG has produced over 250 academic papers and operates as both a technology firm and venture studio, incubating projects from conception to spinout. The company's approach centers on "cascading disruption" — using targeted technological innovations to create systemic changes in financial, governance, and social structures. Beyond Cardano, IOG develops privacy-focused blockchain solutions, developer tools, and decentralized identity systems.
Products
The core products include Cardano, a research-backed layer 1 blockchain, and Midnight, a privacy-focused blockchain platform. Other offerings include Lace (crypto wallet), Pogun (Bitcoin-Cardano bridge), Identus (decentralized identity), Djed (algorithmic stablecoin), Blockfrost (developer API), and Catalyst (community voting platform). The IOG Venture Studio incubates new blockchain projects, providing research, governance design, and technical support for spinouts.
Funding
IOG operates as a bootstrapped private company without disclosed venture capital rounds. The company generates revenue through services and research contracts rather than traditional equity funding. For 2026, IOG requested $46.8 million from the Cardano community treasury, down from $97.5 million in 2025, as part of a strategic shift toward independence from community funding.
Recent news
In April 2026, IOG announced a strategic partnership with the Archimedes Research Unit in Greece to launch a new blockchain technology laboratory dedicated to research at the intersection of decentralized AI, blockchain, and private healthcare. Simultaneously, the company has been focused on scaling initiatives, including the rollout of the Leios protocol architecture to address the blockchain trilemma and a major integration with LayerZero to connect Cardano to over 160 blockchains, enabling native asset movement for more than 800 tokens by the end of 2026.
Technology
The infrastructure runs on a multi-cloud hybrid setup using AWS, Google Cloud, and bare metal servers. Kubernetes handles orchestration while Grafana and Prometheus provide observability. Core development uses Haskell with Rust and Go for performance-critical components. DevOps relies on Nix for reproducible builds, GitHub Actions for CI/CD, and shell scripting for automation. The team also uses Python, TypeScript, and JavaScript for various applications. GitOps workflows and Linux administration are central to operations.
Benefits
IOG offers full remote work with no office requirement across 50+ countries. The DevOps role provides flexible scheduling (Sunday-Thursday or Tuesday-Saturday) with only 1-2 hours daily overlap required with US or EU time zones. US employees receive fully covered medical, dental, and vision insurance plus Health Savings Account. UK/Ireland employees get monthly wellness stipends and pension contributions. All employees receive laptop reimbursement, minimum four weeks vacation, birthday holiday, and mental health support. The culture emphasizes continuous learning and internal promotion opportunities.