Under the contract, SAIC will provide ashore and afloat communications and IT services for MSC ships.
The follow-on contract has a total value of more than $49m with a one-year base period of performance and four one-year options.
The MSC is involved in finding innovative maritime solutions to ocean transportation challenges.
The command also operates 110 noncombatant civilian-crewed ships, conducts specialised missions, strategically positions cargo at sea, and moves military cargo and supplies used by deployed US forces and coalition partners.
Work will be carried out at MSC facilities in the US.