History

COELMO design and manufactures Industrial and Marine Generating Sets from 3 to 3000 kVA since 1946.

Having three production plants, an integrated management system for engineering and production, a wide distribution network and international after sale service, COELMO is able to manufactures Generating Sets for all applications while supporting after sale services anywhere, anytime.

COELMO constantly invests in industrial and technological R&D to combine reliability of traditional energetic sources with innovative green technologies. COELMO plays a leading role with significant market shares in several sectors, from telecommunications to oil & gas, military to humanitarian organizations, from leisure to commercial marine. 

COELMO’s quality is certified according to UNI EN ISO 9001:08, 14001:2004, SA8000:08, OHSAS 18001:07.

With 70 years of experience and several projects successfully completed, COELMO is able to  provide engineering, project management, installation, testing, commissioning, maintenance and technical assistance of Generating Sets worldwide.

1946

Mario Monsurrò Spa is established
in Naples, Italy

1948

Mario Monsurrò Spa is one of the first independent Generating Sets manufacturer in Italy

1950

COELMO introduces one of the first
portableGenerating Sets

1955

Mario Monsurrò Spa starts the operations in the North Africa and Middle East

1967

Mario Monsurrò Spa becomes
the official supplier
of the Italian Army for Energy Systems

1976

Mario Monsurrò Spa
becomes COELMO
(Monsurrò Electromechanical Constructions)

1977

COELMO completes
Marcianise (Caserta, Italy) plant

1980

Subsidiaries and Branches
established worldwide

1997

COELMO is one of the first
to manufacturer to introduce
common rail engines

2001

COELMO designs and develops
a new range of Marine Generating Sets
from 3 up to 40 kVA

2006

COELMO completes Acerra 1 plant

2007

COELMO open a branch in Dubai, UAE

2008

COELMO designs and patens
Integra Plus, the Management System
for the Electrical Sources on board

2011

COELMO completes Acerra 2 plant

2013

COELMO open a branch
in Shanghai, China

2015

COELMO obtains the certification AEOF by the Customs Agency

2016

COELMO celebrates 70 years of activity

2017

COELMO open a new sales office
in Milano (Italy)

2018

COELMO inaugurates Acerra 3 plant