How to design a website for both customers and business?

Situation

We've designed a website for a client that caters to their own clients and to businesses. When you arrive on the website it's focussed on their clients but we have a quick link at the bottom of the page, but still above the fold, to the business side of their website.

Problem

We got feedback that the business side of the website isn't found by it's target audience.

Question

How can we make sure that the business audience finds their part of the website more easily? I allready got some ideas but I'm curious if people had similar experiences (and solutions)!