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.

EdenChain is developing an enterprise tokenization platform that will be based on their permissioned blockchain technology. Their goal is to enable enterprises to create customized digital assets based on their unique needs, and still maintain a high degree of control and privacy. EdenChain will use Merkle Tree and Namespace technology to solve performance issues by executing transactions in parallel; thus enabling more transactions per second, with lower transaction fees. EdenChain utilizes both a hardware and software solution to arrive at a consensus, and has a triple layer architecture that is significantly different from other tokenization platforms. Their hybrid consensus mechanism that will combine a protocol called Median Voter Thereom (MVT) with Proof-of-Elapsed-Time (PoET). PoET was designed and marketed by Intel, and is similar to PoW but requires less electricity. The company issued an Ethereum-based token called EDN.

Blockstream is a private, for profit, blockchain technology company, that has played a key role in helping to develop, and fund, many of the key features of the Bitcoin Core platform. Blockstream is focused on developing bitcoin applications and has raised significant funding from several large investment funds. The company also employs several developers that are very influential within the Bitcoin Core development project. This, as well as being of Bitcoin's largest donors, has led to some criticism about conflicts of interest.
Blockstream is developing a number of Bitcoin applications that are intended to encourage adoption and improve transaction times on the bitcoin network. Their primary focus is on Sidechains, which are are extensions to existing blockchains that improve their functionality. The company is also working closely with industry leaders to create the Bitcoin Lightning system that will support higher trading volume and faster transactions on the bitcoin network. Blockstream is also developing a data feed, satellite network, and other applications that they hope will make blockchain more accessible.