I personally like modern business style websites a lot and in particular, the recent trend using flat and minimalistic design. As you can see from the examples I have found below, especially corporate websites are excellent at making designs that draw attention and stand out while still representing the feel and purpose of the company in a professional manor.
The ability to tie together the professional look and the need for conveying information in a direct and usable manner is as highly valued as having focus on graphics, layouts and color palettes.
These examples below of corporate website designs show how gracefully you can combine the need for a website with the professional image you wish to represent to visitors. As you can see, there are no golden rule for corporate designs. It is common though to use a slider and columns on the front page to feature important content.
When designing a corporate website you need to find a special style that represent your business and model it into a design that represents the exact look and feel of the business values and products. If you are looking for inspiration for an upcoming business site, you might want to take a look at this article that rounds up some of the best WordPress themes for building business websites.
I hope you will find this collection of excellent corporate website designs useful and that they will give you the needed inspiration for your next project. Enjoy!