Doing a quick search of TESS2 for trademarks look they already have the trademark registered for ZEIT (registered in 2017). So it was probably for other reasons

Doing a quick search of TESS2 for trademarks look they already have the trademark registered for ZEIT (registered in 2017). So it was probably for other reasons. Which is a shame, because Zeit is very concise, easy to remember, and has a strong brand today - at least with their initial audience. Sounds like they're trying to go for a more corporate customer with their new name.