Tāmen huā le sān nián shíjiān chóujiàn zhè jiā gōngsī.
They spent three years setting up this company.
Tips
usage
筹 ('to plan; to raise funds') + 建 ('to build'). Covers the entire pre-construction phase: fundraising, planning, hiring, permitting — everything before ground is broken. Pairs with 筹备 (chóubèi, 'to make preparations') for non-construction setups.