Investor Presentation / Investor Pitch Deck with Business Plan & Proposal, Financial projections, using PowerPoint, Excel

I need to create an Investor Presentation / Investor Pitch Deck that includes a Business Plan & Proposal, Financial projections, and some graphics to illustrate the business model. The presentation should not be more than 12 to 20 slides. I would like to work on an hourly basis, because the presentation may require constant updates.

Please only experienced presentation developers for Investment Presentations, please have an example of your work available.