Do you have a DUNS number? November 17, 2020 12:28 Updated Follow OffSec Services Limited is organized under the laws of Gibraltar. Our DUNS number is 56-556-8585. Related articles Am I able to switch payment methods after the purchase is complete? Do you offer installments or payment plans? What types of payments do you accept? Are there any additional fees for international transactions? What courses can I purchase as a bundle?