Modern Logo & Banner Design

I'm seeking a modern, minimalistic logo and banner for my new business, Solid Foundation Geotechnical - Engineering Consultants.

Requirements:
- Banner for email signatures and Word/Excel templates.
- Logo: "SFGEO" in dark grey, with green and blue highlights.
- Light grey background image of modern building design with pile and pad footing foundations.
- Final files in JPEG format.

Ideal Skills & Experience:
- Strong portfolio in modern, minimalistic designs
- Proficiency in logo and banner creation
- Experience with construction or engineering-themed graphics

Please share your portfolios and estimated timelines.