Investment Banker Investment bankers have expertise, contacts, and the sales organization to efficiently market securities to investors Thus, the services can be provided at a lower cost to the firm than the firm can perform the same services internally n Three primary means companies offer securities to the general public. Traditional (firm commitment)underwriting Best efforts offering Shelf registration 19-719-7 Investment Banker Thus, the services can be provided at a lower cost to the firm than the firm can perform the same services internally. Three primary means companies offer securities to the general public: Traditional (firm commitment) underwriting Best efforts offering Shelf registration Investment bankers have expertise, contacts, and the sales organization to efficiently market securities to investors