The Ark Blockchain was launched in February 2017 by a group of 27 member spread across the globe, making for a truly decentralized team. Currently the core team consists of 17 members.
One of the primary founders, and the current CTO of ARK, is FX Thoorens, who was also a core developer at Lisk prior to working on the ARK project.
ARK was modeled heavily on bitshares Lisk and Crypti, three older projects all using the Delegated Proof of Stake (dPoS) consensus algorithm. This is a variant of traditional Proof-of-stake(POS) consensus 😎 algorithms.