Corporate PowerPoint Template Creation

I need a PowerPoint template tailored for sales presentations, consisting of approximately 200 slides. The design should reflect a professional and corporate style, incorporating our company colors.

Essential elements include:
- Cover slide
- Section headers
- Bullet points
- Data charts
- Tables
- Infographics
- Images
- Icons
- Background patterns

Ideal skills and experience:
- Strong graphic design background
- Proficiency in PowerPoint
- Experience creating corporate presentation templates
- Ability to incorporate complex data visually

Please share relevant work samples.