We can share the AMI with other AWS accounts and this article explains the steps to achieve the same.
Step1: Login to AWS console.
Step2: Select the EC2 management page.
Step3: Choose AMI from the menu and select the the AMI that to be shared from the list.
Step4: Choose "Modify Image Permissions" from Actions.
Step5: Specify the AWS account number to which the AMI need to be shared and save the configuration.
Now the AMI will be available in the other AWS account that we specified here.