Big 4 is a company that provides audit and consulting business, the largest in the world, with customers as companies listed on the stock exchange companies around the world.
Big 4 firm providing audit and consulting business in the world's fourth largest company, with a customer is listed on stock exchanges around the world.
Big 4 is a company that provides audit and consulting business in the world 4, large company. The customer is a company listed in the stock exchange all over the world.