Hi,
You can find info about the devs here https://github.com/orgs/Tesoro-Dev/people

Tesoro is developed by a team of 5 independent devs at the moment. The purpose of Tesoro is to be a token of the eco system within Blockfinex and other Dan Ventures projects. Some users simply mistakes Tesoro to be a quiet project with no team. We are working on the next phase which is the listing in Blockfinex and lightweight wallet development.