Certificates (COIs) & Additional Insureds (AIs)

Our General Liability product includes a Blanket Designated Additional Insured and Waiver of Subrogation (WOS) endorsement for all policies. Simply add a Certificate Holder to the policy, and these endorsements will automatically generate behind your COI.

To add or edit an additional insured in the Thimble Broker Portal, follow these steps:

1. Access the Broker Portal: Log in to your Thimble Broker account.

2. Navigate to Policies: Click on the “Policies” section in the main menu.

3. Select the Client's Policy: Locate your client's active policy and click “Manage Policy” to open the policy details page.

4. Modify Additional Insureds: Scroll to the “Additional Insureds” section and click the “Add or Edit” button.

5. Update Information: Follow the prompts to add or edit the additional insured's details. Note that adding certain endorsements, such as completed operations coverage, may result in an additional premium.

To locate previously completed Certificates of Insurance (COIs) in the Thimble Broker Portal:

1. Navigate to Policies: Go to the “Policies” section of the portal and find your client’s active policy. Click on “Manage Policy” to access the policy details page.

2. Access COIs: On the right side of the policy details page, locate the “Documents” section. Under “Certificates,” click the “View” link.

View and Share COIs: A screen will open displaying all COIs for the policy. At the bottom, you’ll see a list of recipients who have received a COI. Click the document icon on the right to view, download, or share another copy.

Removing Additional Insureds

At this time, AIs cannot be deleted midterm, but you can set an AI to not be included on the policy at renewal. If you would like to remove an AI at renewal, you should edit the Additional Insured and toggle the button under the applicable AI to the off position as shown below.

For any other assistance please contact us at brokerprogram@thimble.com.

Updated October 16, 2025 19:28