A colloquialism is footprint.
As the attestations show, it is a very common phrase in the context of business expansion, and so anyone who reads about business is not likely to confuse it with "environmental footprint" or "carbon footprint" which isare a measure of a company's deleterious effects upon the planet's natural environment.
The company's footprint is getting larger. Not only has our workforce doubled in size, we have purchased land and built new facilities.