There are 3 commonly named projects that live in the same sphere: Streamr, IOTA and OceanProtocol.
Streamr is taking their traditional data transfer platform and will attempt to “blockhainize” it. While we will not go into a deep technical analysis of these projects the conclusion can be drawn from reading the whitepaper that the goal is to replace the entire IoT stack, from top to bottom, with the Streamr solution. A monumental challenge if you keep in mind that if they are operational in 2 years, they will have to replace an industry with 30 billion deployed sensors.
IOTA’s plan is similar. But they go even further, aside from replacing the entire IoT ecosystem, they also replace any underlying blockchain base with a new and untested network, using a concept called a “tangle”. Double down on the challenges.
Both Streamr and IOTA describe a data marketplace. A marketplace for data on the the Streamr or IOTA platform/network. Of, at some point in time, one of them has replaced the IoT ecosystem, the winner would indeed be a real competitor for DataBroker DAO to break down data silos and facilitate the easy transfer of data, regardless of the underlying network.
OceanProtocol is a different story. Their focus is a new kind of BigchainDB-based network specifically for buying and selling AI datasets. While not a lot is known at this point, the roadmap specifies several years before their solution will be ready and the underlying technology is less decentralised/open compared to an Ethereum based solution.
DataBroker DAO takes a radically different approach: It is built to go into production this year. This ensures we both need to use proven technology, and a first movers advantage over these other players.