Yes, amongst others. BTS is funded by a range of individuals, funds, human rights organisations and agencies, both private and state, including NIF in Israel, and a number of other Jewish and Israeli funders. It publishes the names of all donors on its website.
Foreign governments and government agencies who provide funding are countries which are long-standing good friends of Israel, like Holland, Denmark and Switzerland. They invest hundreds of millions of euros in the Israeli economy.
Unlike many settler and pro-Occupation organisations, BTS receives no funding from the Israeli government.