MASA Assist provides membership-based emergency medical transportation assistance for people living in the Caribbean and beyond. The organization focuses on helping members access medical care when local facilities cannot meet their needs and transportation to another island, Puerto Rico, the United States, or another destination is required. With more than 25 years of service in the Caribbean, MASA Assist says it was the first company to offer emergency air protection in the region.

Membership benefits include emergency air and ground ambulance transportation, patient return and repatriation to a hospital near home, and transportation for companions. Additional services may include continued care after admission, extended hospital stay support, assistance locating attorneys or physicians, and return transportation for minors, pets, vehicles, and recreational vehicles. Benefits also include services related to organ retrieval and transplantation, hospital visits, and mortal remains return. MASA Assist offers membership plans intended to help members manage the potential financial burden of emergency transport. Its website also provides membership information, frequently asked questions, and educational resources.