About Kadena

Meet the humans working on blockchain’s Human Layer.

Our Company

Kadena is the industry’s only truly scalable Layer-1 Proof-of-Work blockchain. More to the point, it’s the only blockchain scalable enough to fully replace the global financial system — and other legacy centralized systems — without compromising on speed or security.


With Chainweb, Kadena’s multi-braided, infinitely scalable blockchain technology, and Pact, our industry-leading smart contract language, Kadena transcends the limits of conventional Layer-1 and Layer-2 blockchains, enabling builders to create meaningful solutions to real-world problems.


In other words, Kadena is operating on a whole other layer: Layer H, the Human Layer.

Our Founders

Kadena was founded by Stuart Popejoy and William Martino. Prior to launching Kadena, Stuart led JPMorgan’s Emerging Blockchain group. After recruiting Will from his role as the Tech Lead for the SEC’s Cryptocurrency Steering Committee, the two built JPMorgan’s first blockchain, now known as JPM Coin. They left JPMorgan in 2016 to launch Kadena and begin work on what would become Chainweb and Pact.

Our Advisors

It wasn’t long before Popejoy and Martino’s work caught the attention of Dr. Stuart Haber, one of blockchain’s co-inventors. As impressed with Kadena’s technology as he was with its philosophy, Dr. Haber officially joined Kadena as an advisor in 2018. His work with Kadena continues today, with the recent release of Immutable Record, an idea decades in the making.

The Team

Executive Team

Our Partners

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