Question

how can a company achieve it's purpose?

Answer 1

by putting up banners and posters and a web sight and basically putting it out in public for the world to see

hope this helps!

Answer 2

A company can achieve its purpose by knowing what the company wants, what they want to produce out of their work, what qualities they want to achieve, how they are going to help their community, and what their goals are. 
I hope this helps.