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Quality Symbol Office for Business Services – ISO Certificates and Contractor Classification Would you like to develop your business, raise the level of your establishment, and enhance your opportunities in the Saudi market? Quality Symbol Office for Business Services offers you consulting and qualification services and follows up on accreditation and classification procedures in accordance with the requirements of the competent authorities. First: ISO certificates for all activities: ISO 9001 – Quality Management. ISO 14001 – Environmental Management. ISO 45001 – Occupational Health and Safety.