15-slide Powerpoint Deck Needs Reworking

I need a 15-slide Powerpoint presentation reworking for a new company without a style guide for
a number of customer meetings next week. You can find our more about the company at www.diligentsia.co.uk.

Target territory: UK
Target audience: small and medium sized companies' CEOs and professional advisors, accountants, lawyers, VCs.
Brand values: trust, professional, easy to use, data, security, friendliness

Number of slides in the .ppt presentation - 15

Issues:
1. We have not yet undertaken the corporate branding/style guide etc. for this new company, but I need the presentation for customer meetings next week. So we will need to create a style for the deck and take it from there.
2. Our web site has a modern data-orientated feel (deliberately). But I have mixed up a number of styles in the deck slides themselves. You will need to agree a suitable standard style with me at the outset of the project once I have supplied the deck of 15 slides.

Completion Date: I require the project to be completed by 20th October.

Creds: Please provide me (or provide links) to a sample of your work so that I can be assured that you have undertaken some B2B projects as well as B2C.