About 14:
Apple ($4.98T), NVIDIA ($4.51T), Microsoft ($3.94T), Alphabet ($3.49T), Amazon ($2.80T), TSMC ($1.95T), SpaceX ($1.82T), Saudi Aramco ($1.69T), Meta ($1.56T), Tesla ($1.42T), Broadcom ($1.40T), Berkshire Hathaway ($1.22T), Eli Lilly ($1.21T), (Walmart ($0.996T))
I remember Apple being the first ever one-trillion-dollar company in the world. It was in 2018.