Your Corporate Identity needs to be right. It needs to present the core values of your business. It should demonstrate a high degree of professionalism.
Successful Corporate Identities are often very simple but beautifully presented. To be successful they need very strict control on how the image is displayed and presented.
Perhaps you already have a Corporate Identity and just need someone to implement it, someone to keep it on the right track and solve any ongoing problems. Such as dealing with artwork, providing digital media, dealing with suppliers.
A Corporate Manual is a good idea especially for International Companies. Suppliers need to know exactly how to use your logo, the colour references, size, proportions, backgrounds, artwork etc.
Tom has worked on Corporate Identity for lots of large companies such as: