As a major logistics and transit hub, SeaTac is home to the corporate headquarters and major operations of several notable companies.
* **Alaska Air Group**: The parent company of Alaska Airlines and Horizon Air is headquartered in SeaTac. It is one of the most prominent employers and corporate entities in the region. * **Port of Seattle**: While headquartered in Seattle, the Port’s aviation division operates SEA Airport within SeaTac, acting as the largest economic engine and one of the largest employers in the immediate area. * **Hospitality Groups**: The city serves as a regional base for numerous hotel management companies and aviation logistics firms operating in and around the airport.