The company is scheduled to complete work on the two contracts through September 2016, iRobot said Monday.
One potential $46.7 million contract covers spares, updates and services to MTRS MK1 robots for the Naval Surface Warfare Center.
The service branch has already placed $7.9 million in initial orders under that contract, iRobot said.
A second contract worth up to $49.1 million is for production of new MTRS MK1 systems, spares, accessories and repair parts and the Navy has placed a $374, 000 order under this contract.