Tezos is a smart contract platform with its own blockchain and a native token (Tezos, XTZ). The governance is performed via Proof-of-Stake algorithm. It means that stakeholders (those who own at least 10,000 XTZ) vote for changes in the protocol. These validators ("bakers") get rewards for the performance of validation. The rewards are generated via inflation. Those who delegate their XTZ to bakers can earn, too.
Tezos has a built-in "self-amendment" mechanism which makes it possible to shape the network without having to make forks. It keeps the community united and makes development process easier.
Ontology is a business-to-crypto platform from Singapore. It assists companies in using blockchain, smart contracts, , and other solutions associated with decentralization and distributed ledger. The network has two native tokens, ONT and ONG. Ontology was the first project to implement the idea of digital identity.