Sphinx Solutions team has developed a smart contract based on Hyperledger and implemented the ICO in the same. All the documentation and code are clearly written and easy to understand. The team is very professional and well versed with all the technical aspects of ICO. It was a good experience working with the team. We are looking forward to a long-term association with Sphinx Solutions. I have no complaints about Sphinx Solutions. Sphinx Solutions has helped us develop a smart contract based on Hyperledger and implemented the ICO in the same. I have been working together as an advisor since April 2018 when we started this project - Spheroid (Sph) which is using smart contract technology developed by me at my startup business called 'Hyperblockchain'. As part of that work they are developing their own version or blockchain platform built around SPHEIRON tokens used within it's ecosystem rather than etherium like most other projects out there today use so far!