Aeternity is a smart contract driven blockchain platform that aims to integrate real world data and improve the overall performance of smart contracts. Aeternity has a hybrid consensus algorithm that combines PoW for verifying transactions, and PoS for governance purposes. The platform is based on a system of state channels that allow users to interact privately with each other and record this information off-chain.

Kadena is a software development company that builds blockchain-based platforms for a range of businesses. They develop purpose-built blockchain solutions for their clients by using proprietary solutions that are aimed at being both secure and scalable. Kadena offers both private and public blockchain platforms, with smart contracts written in the Pact programming language. They've also developed an innovative proof-of-work architecture called ChainWeb that could have a variety of applications.
Kadena's founders have experience working for the U.S. Securities and Exchange Commission (SEC) and JPMorgan Chase Bank. The company has raised significant funding and is well positioned to be play a big role in developing future blockchain solutions for large financial institutions.

Swarm is building a tokenization platform designed to leverage the benefits of blockchain to make it easier to fund and govern a variety of large real world projects. They hope to make it easier to tokenize real world assets, and make them available as investment opportunities. Swarm is also developing the SRC-20 protocol, which will define a common set of rules that a security token must follow, and will give users the ability to create DApps that follow these accepted properties. Swarm is powered by the SWM token.