| Name                      | Vessel/Activity | Organization     | Ownership percentage |
|---------------------------|-----------------|------------------|----------------------|
|                      |            |             |                 |
| Star Bulk Management Inc. | Management Co.  | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Bulk S.A.            | Management Co.  | Liberia          | 100%                 |
|                      |            |             |                 |
| Star Alpha LLC            | Star Alpha      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Beta LLC             | Star Beta       | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Gamma LLC            | Star Gamma      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Delta LLC            | Star Delta      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Epsilon LLC          | Star Epsilon    | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Zeta LLC             | Star Zeta       | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Theta LLC            | Star Theta      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Kappa LLC            | Star Kappa      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Lamda LLC                 | Star Sigma      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Omicron LLC          | Star Omicron    | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Cosmo LLC            | Star Cosmo      | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Ypsilon LLC          | Star Ypsilon    | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Aurora LLC           | Star Aurora     | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Borealis LLC         | Star Borealis   | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Polaris LLC          | Star Polaris    | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Big LLC              | Star Big        | Marshall Islands | 100%                 |
|                      |            |             |                 |
| Star Mega LLC             | Star Mega       | Marshall Islands | 100%                 |