In Engineering, what is the importance of pre-Qualification system for of a Consultant?

I agree with MR. ALEX  AL  YAZOURI  and also very important  technical experience 

Great answer by Mr, Wolf and Mr. Alex. Thanks to all for participation.

I do pre qualification to make sure I get bids from companies that can perform the work according to the specifications and stay at there feet during and after construction.

Consulting firms must be qualified in the following areas:

Legal status

Accounting system

Capabilities

Specific technical experience

Licensing

I agree with Mr. KInsbergen and Mr. Yazouri's answers....

With experts

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