Sales Boost for Business-oriented Website

I'm in need of a digital expert who can revamp my website strategically to effectively engage businesses, my primary target audience. By end of the project, I expect a significant increase in sales. Ideally, you will have solid experience in user engagement and sales funnels. Specific functionality will be a point of discussion as I'm open to ideas. Your focus should be on methodologies that have proven to result in sales increase for B2B platforms.