Electronics Manufacturer - SEO Case Study

[seomagician]

Can anyone point me to a successful seo case study for a electronics manufacturer or some equivalent industry?
I have a proposal out and the company wants to see a success story before they finalize. I don't have one specific to that industry and they don't care where it comes from they just want to see someone else that has used an seo service that had success.

Thanks for any help.

[seomagician]

I guess I need to clarify. They want to see a case study that shows what the seo results did for the company. For example: higher rankings, more traffic, more conversions, more sales.