Half of the top 10 companies on the SEA 500 are headquartered in Singapore. No. 1 goes to commodity giant Trafigura, with revenue of $240 billion.

Thailand and Indonesia have the most companies on the list. But Vietnam is responsible for roughly a quarter of this year's total revenue growth.

Half of the top 10 companies on the SEA 500 are headquartered in Singapore. No. 1 goes to commodity giant Trafigura, with revenue of $240 billion.