start (sth) up
phrasal verb with start verb uk/stɑːt/ us
if a business or other organization starts up, or if someone starts one up, it is created and starts to operate:
The funding means that by the time it starts up in December, the group will have an annual operating budget of about $70 million.
She's talking about starting up a totally new business.
See also
jump-start verb
kick-start
start-up