WHOI maintains technicians aboard its three largest research vessels and also on shore.
The WHOI mooring construction and rigging shop offers a wide range of services and an extensive marine hardware inventory.
Diving operations at the Institution and aboard Institution vessels are governed by the WHOI Diving Program and supports approximately 50 divers.
WHOI maintains a facility in Woods Hole village with three vessels for external pressure testing of scientific and engineering equipment.
Researchers at WHOI operate a CTD calibration laboratory and a meteorological calibration laboratory.