[I_am_tiberius]

It was developed in Russia.

[justinclift]

Looks like the ownership was moved to a Singaporean holding company in 2023:

https://en.wikipedia.org/wiki/OnlyOffice#Ownership

The ownership info for the holding company doesn't appear to be public info, so it's definitely possible the move was just a bullshit exercise to avoid sanctions.

No real idea personally though.