in on the ground floor
US /ɪn ɑn ðə ɡraʊnd flɔr/
UK /ɪn ɑn ðə ɡraʊnd flɔr/

1.
sejak awal, dari awal
involved in something from the very beginning, especially a business venture, to gain an advantage
:
•
He got in on the ground floor with the new tech startup and made a fortune.
Dia ikut sejak awal dengan startup teknologi baru itu dan menghasilkan banyak uang.
•
If you want to succeed, you need to get in on the ground floor of emerging industries.
Jika Anda ingin sukses, Anda harus ikut sejak awal di industri yang sedang berkembang.