CGL - How many Additional Insureds may I add to my General Liability policy and how quickly do they appear? Taylor Smith June 22, 2021 14:44 Updated You may add an unlimited number, they are added to your policy instantly, you can do this during or after purchase (but before expiration) and in all cases there is no additional charge. Related articles CGL - How do I add or edit an Additional Insured on an existing General Liability policy? CGL - How do I insure the work of multiple people with Thimble? Why doesn’t Thimble have a customer support phone number listed? CGL - May I add my company to receive coverage under the policy? How do I report a claim?