
Alliance (A5345) is a Research Vessel owned by NATO and operated by Marina Militare as a NATO Research vessel and owned by the CMRE – Centre for Maritime Research and Experimentation, in La Spezia, Italy. Alliance has the status of an auxiliary ship of the Marina Militare.
Ammiraglio Magnaghi is a hydrographic survey vessel in service with Italian Navy. It's the first survey vessel ever to be designed and built completely in Italy for the Marina Militare. It has been regularly modernized and constantly upgraded.

USS St. George (AV-16) was a Kenneth Whiting-class seaplane tender in the United States Navy.

Anteo is a submarine rescue ship of the Italian Navy, assigned to Raggruppamento Subacquei ed Incursori "Teseo Tesei" (COMSUBIN). ITS Anteo is the third ship to bear this name in the Italian Navy. The ship's design was developed by the "Ufficio Navi Speciali del Reparto Progetti Navi", according to the guidelines provided by the Navy General Staff. The ship was built at Cantiere Navale Breda di Porto Marghera and commissioned to the Italian Navy on 31 July 1980.

USS Woodworth (DD-460) was a Benson-class destroyer in the United States Navy during World War II. She was named for Commander Selim E. Woodworth.

The Ciclope class of Deep sea tugboats consists of six units operated by the Marina Militare Italiana, named as Rimorchiatore d'Altura.

Elettra is an Italian Navy SIGINT vessel designated as 'Nuova Unità Polivalente di Supporto (NUPS). Designed to carry out research and surveillance activities, the vessel’s platform was developed from the RV Alliance built for NATO. Her propulsion system, based on two permanent magnet electric engines, constitutes a technological breakthrough and she is the first surface vessel in the world to be powered by this type of engine. The main characteristics of this propulsion system are: high reliability, high efficiency, low maintenance and low underwater radiated noise

Etna is an auxiliary ship that entered service with the Marina Militare in 1998. She is designed to support fleet operations with fuel and dry stores. Etna is the Italian single vessel of Etna class with a sister ship, HS Prometheus, was built under licence in Greece and entered service with the Hellenic Navy in 2003.

The Etna class is a ship class of two naval replenishment and logistic support ships used by the Italian Navy and by the Greek Navy The two ships are almost identical but they have differences in their armament and sensor equipment.

The Gorgona class is a series of six Coastal Transport ships of the Italian Navy, named as Moto Trasporto Costiero, MTC.
Leonardo is a NATO Coastal Research Vessel owned by NATO and operated by Marina Militare as Coastal Research vessel (CRV), shared by CMRE - Centre for Maritime Research and Experimentation, in La Spezia Italy.
The Ninfe class of survey vessels consists of two catamaran hulls operated by the Marina Militare Italiana.
The Panarea class is a series of four coastal oil tankers of the Italian Navy designated as Moto Cisterna Costiera, MCC. Since 5 October 2005 all vessels carry the motto Prompti ad Agendum.

USS Oyster Bay (AGP-6), originally and later AVP-28, was a United States Navy motor torpedo boat tender in commission from 1943 to 1946. She saw service in World War II.

USS Oyster Bay (AGP-6), originally and later AVP-28, was a United States Navy motor torpedo boat tender in commission from 1943 to 1946. She saw service in World War II.

The Ponza class is a series of five Coastal transport ships of the Marina Militare, named as Moto Trasporto Fari, MTF.

The Porto class of Coastal tugboats consists of nine units operated by the Marina Militare Italiana, named as Rimorchiatore Costiero.

The Stromboli class is a series of two replenishment oilers used by the Marina Militare since 1975. They are to be replaced by the Vulcano class beginning in 2019.