An ICU ambulance, short for Intensive Care Unit ambulance, is a specialized ambulance designed to transport critically ill patients who require intensive medical care. These ambulances are equipped with advanced medical equipment and staffed by trained medical professionals who specialize in critical care.

Individuals who require transportation via an ICU ambulance are typically those who have sustained significant injuries or are experiencing a medical emergency such as a heart attack, cardiac arrest, stroke, asthma attack, respiratory failure, severe bleeding, seizures, unconsciousness, poisoning, burn, head injury, polytrauma, diabetic emergency, pregnancy complications, and other serious medical conditions.

Ambulance Service Bangladesh is a renowned provider of ICU ambulance services in Dhaka, Sylhet, and Chittagong, Bangladesh. They operate three ICU ambulances, with one based in Dhaka, another in Sylhet, and the third in Chittagong. Their medical team comprises of four nurses, four paramedics, and four MBBS doctors specialized in ICU care, who are always available to provide exceptional medical attention to patients during emergency situations.

Ambulance Service Bangladesh is the sole incorporated company in Bangladesh that has established a strong partnership with Guardian Life Insurance Ltd. They offer cashless ambulance services to people insured by Guardian Life Insurance Ltd.

A freezing ambulance service, also known as a "mortuary ambulance" or "funeral van" is a specialized type of ambulance used for transporting deceased individuals from the place of death to the funeral home or mortuary. These ambulances are equipped with refrigeration units to preserve the body and ensure proper handling of the deceased. They are typically operated by funeral homes, mortuaries, or specialized transport companies and may also be used for transporting bodies between different locations for funerals or burials.