Your benchmark in Italy for purchase and maintenance of marine diesel engines
Logo Tonissi Naval
In mid-2019, Ranieri Tonissi laid the foundations for what would soon become a new division of the company: TONISSINAVAL.
The new division, using top-level expertise, aims to become a reference for shipping industry.


The TONISSINAVAL department takes advantage of the experience of Ranieri Tonissi SpA in the naval industry and brings its expertise and highly qualified partnerships to the market.
As dealer and agent of the following brands, TONISSINAVAL department is a reference point for the supply of services, spare parts and equipment for the engine room.


The renewed branch in Genova Bolzaneto is equipped to perform any kind of repair and maintenance operation on turbochargers. The workshop consists of 1000 m2 and more than 600 m2 of spare parts warehouse (OEM).
Our technicians, specialized on different types of turbochargers, garantee a quick solution to a wide range of possible problems.


Our personnel and superintendent engineers are specialized and certified for work on MAN two-stroke engines and four-stroke engines from Wabtec, MAN, MaK, Bergen, as well as on Emerson (Aventics) pneumatic manoeuvring systems.
We perform troubleshooting, pre-docking inspections, engine diagnostics and performance measurements, supervision and coordination of on-board and shop floor work.
In collaboration with TSI UK and the TSI international network, we ensure rapid on-board intervention coordinated from our Genoa office.


Andrea Rossetto
Roberta Ferretti
Maurizio Marinucci


Prestigious representations and exclusive imports for Italy. Ranieri Tonissi is the reference point for some of the most important brands in the sector. Choose the brand you are interested in to find catalogues, technical data sheets and more.

Maintenance friendly marine coolers.
The product portfolio for Hydroniq Coolers consists of the Hydroniq Rack cooler and Hydroniq Pleat cooler, as well as the long existing shell and tube heat exchangers.

wabtec corporation

TonissiNAVAL department is Channel Partner of Wabtec Corporation for the supply of marine engines, spare parts and service Wabtec (former GE Transportation).

TonissiNAVAL offers, in cooperation with TSI, a complete package of turbocharger spare parts and service from its workshop in Genoa.

Ranieri Tonissi is the Italian dealer of Marex and Pneumatics products manufactured by Emerson Aventics.
Emerson’s integrated solutions help make ship operations more efficient in all conditions and ensure the safety of crews and goods.

logo renk

Ranieri Tonissi has been RENK AG agent in Italy since the early 50’s for industrial applications, dealing also with naval applications today.

We represent Orcan Energy AG, Europe’s leading company in heat recovery. By means of efficient solutions based on ORC (Organic Renkine Cycle) technology we convert the heat dissipated in the exhaust gases or dispersed in other procedded in the form of steam into electricity.


Our sales and service departments are staffed by highly qualified personnel. We guarantee a prompt intervention and assistance service in compliance with the standards set by the manufacturers we represent.