In most cases, yes. Many air conditioning units are actually heat pumps. These HVAC systems are capable of reversing refrigerant flow, keeping you cool in the summer and warm in the winter.
They essentially work by encouraging liquid refrigerant to boil from a liquid to a gas. In its liquid state, the refrigerant passes through evaporator coils located in an indoor unit. As it does so, it absorbs heat from the indoor air, transforming into a gas in the process. The cooled air is returned to your property, whilst the gas is compressed, expelling unwanted heat outdoors. It then passess through condenser coils in an outdoor unit which cool the refrigerant and turn it back into a liquid.
This continual cycle keeps your property cool in hotter months. When the temperature drops, the cycle reverses. The refrigerant is in liquid form outdoors, absorbing heat from outside air, which it carries through the system and into your property.
Heat pumps are a good solution for business premises, as they are more energy efficient than traditional heating systems, keeping costs down and lowering your carbon footprint.