A business letter of responsibility is required, to be typewritten on your company letterhead and addressed to:
Embassy of Saudi Arabia, Visa Section, Washington DC
The letter must explain all of the following:
Nature of business to be performed
Name and address of reference to be visited
This letter should request Multiple Entries visa if required
Guarantee of return transportation and sufficient funds for the visit
The letter should be signed by an officer of the company other than the applicant.
Invitation Letter
Your sponsor in Saudi Arabia must arrange an invitation approved by the Saudi Arabia Ministry of Foreign Affairs. The approval should be telexed to the Saudi Embassy in Washington DC and a notification is usually sent to the applicant.