COMSA Corporación is a Spanish infrastructure and engineering group founded in 1891. In 2017, it had a turnover of €1.08 billion and over 7,700 employees. It operates internationally in 24 countries across five continents. COMSA provides comprehensive infrastructure, industrial engineering, environmental, and technology services, with a focus on railways, civil works, buildings, and maintenance. The company has over 120 years of history in infrastructure development and international recognition for its expertise and innovation.

1. COMSA Corporación
A benchmark group in the infrastructures and engineering sector
Communication Department - COMSA Corporación

2. Press Kit
A benchmark group in infrastructures
COMSA Corporación is the first-largest Spanish unlisted group in the
infrastructures and engineering sector. Founded in 1891, the company delivers
comprehensive infrastructure, industrial engineering, environmental and technology
services. COMSA Corporación has closed 2017 with a turnover of €1,080 million
and more than 7,700 employees (on 31.12.17).
One of the pillars of COMSA Corporación’s progress is its business operations
abroad, where the company has a turnover of €582 million and a workforce of more
than 4,000 people. The group’s expansion over recent years has enabled it to put
in place projects on five continents.
COMSA Corporación is present in 24 countries: Algeria, Andorra, Argentina,
Australia, Brazil, Chile, Colombia, Croatia, Denmark, France, Latvia, Lithuania,
Mexico, Morocco, Paraguay, Peru, Poland, Portugal, Romania, Spain, Switzerland,
Sweden, Turkey and Uruguay.

3. Press Kit
More than 120 years of history
The history of COMSA Corporacion dates back to 1891, the year in which the
company “José Miarnau Navás Contratista de Obras” was created in Reus
(tarragona). In its early years the company focused on track and station renovation
works. In the 1930s the company moved its headquarters to Barcelona and
became a public limited company under the name of Hijos de José Miarnau Navás
and under the leadership of the second generation of the family. During the 1940s
diversified its activities and starts constructing roads, bridges, buildings, etc.
In the late 1950s the third generation of the family took over the reins and in 1964
the company was renamed Construcciones Miarnau. This phase was characterised
by the increasing mechanisation of the works, especially those involving railways, a
process that the company successfully managed, with the incorporation of
specialised machinery.
In the 1960s and 1970s the company consolidated the diversification of its business
and began its geographical expansion throughout Spain, first in Madrid and
Valencia and later in other areas. Coinciding with this growth, the company was
renamed COMSA.
In the following years, COMSA maintained its commitment to technological
innovation and in 1982 incorporated the Rapid Track Renewal Train (TRR), which
is still unique in Spain and which represented a qualitative leap for the railway
projects. In the 1980s the company strengthened its presence throughout the
country and at the end of the decade began executing major infrastructure projects.
This led to participation in the construction of the first Spanish high-speed line
(Madrid-Seville), inaugurated in 1992 for the Universal Exhibition. In parallel, the
company carried out various works related to the Olympic Games in Barcelona,
most notably the construction of the Palau Sant Jordi.
The 1990s saw the progressive entry of the fourth generation into the company,
while internationalisation began in countries such as Portugal, Argentina and Chile.
With the arrival of the new century, COMSA increased its international presence,
now operating in ten countries, and diversified its business into activities such as
the environment, transport by rail, renewable energy and concessions.
The incorporation of the engineering company EMTE in 2009 allowed the formation
of one of the most important infrastructure and engineering groups in Spain.
Currently, the COMSA Corporación is present in more than twenty countries and
enjoys international recognition, a result of a century of experience in the
development of infrastructure, particularly involving railways.

4. Press Kit
International commitment
Internationalization is one of the main commitments of COMSA Corporación. 2017
was marked by the expansion of the Infrastructure and Industrial Engineering’s
international activities, whose sales accounted for 60% of the group’s total turnover.
Foreign contracts in 2017 exceeded 582 million Euros.
In 2017 COMSA Corporación has focused on markets with high opportunities for
the development of new infrastructures and modernization of the already existing
ones. For this reason, the group acceded to Denmark with a relevant contract for
the construction of the tram in the city of Odense. At the same time, it strengthened
its presence in Poland with a project for the refurbishment of 90 kilometres of track
on line 405 between Szczecinek and Ustka carried out by the subsidiary Trakcja
PRKiL. In Latvia, Kauno Tiltai has led the modernization of a section of the Baltic
motorway. Moreover, COMSA Corporación continues working the Lugoj - Deva
motorway in Romania and maintaining the CERN facilities in France and
Switzerland.
At the same time, it consolidated its presence in strategic countries in Latin
America. In Brazil, it maintains the second phase construction of Line 4 of the Sao
Paulo metro and, recently, it has completed the doubling of the section 4 of the
Régis Bittencourt motorway in the Serra de Cafezal. In Argentina and Uruguay, the
company has various railway refurbishment contracts, among others, the
remodelling of a 327-kilometer section between Piedra Sola and Salto Grande.
Likewise, it is developing the supply, installation and commissioning of the
electromechanical equipment and control systems for the La Línea tunnel in
Colombia, whereas in Peru it is carrying-out the maintenance works in the
transmission and distribution network for ENEL in Norte Chico and Lima.
In Africa, it stands out its role in Algeria where it has carried-out a water treatment
plant in Constantine, as well as a new pharmaceutical plant of oral solutions for the
company Saidal. On other hand, its airport business unit goes on its activity in
Morocco. In 2017, it supplied air-navigation systems in nine airports of the country.
Its specialization in railways, industrial engineering, civil works, building,
installations and systems, and maintenance, combined with a range of services that
are characterized by their innovation, technology and excellence, position COMSA
Corporación as a benchmark player in these sectors while at the same time
providing a differentiating value in markets that are becoming more and more
demanding and increasingly mature.

5. Press Kit
Main figures 2017
 COMSA Corporación turnover €1,080 m
Infrastructures and Industrial Engineering €964 m
Other Businesses €116 m
 International turnover €582 m
 Workforce 7,785 people
BUSINESS AREAS
Infrastructures
The origins of COMSA Corporación date back to 1891 when it started out in track
work and station renovation. Today it is one of the leading constructors in Spain.
The company offers comprehensive services in the rail sector which encompass
the construction and maintenance of railway infrastructures and superstructures for
high-speed and conventional rail, metros, tramways, etc.
It is the leader in Spain in this business area and it also has operations in
Argentina, Brazil, Croatia, Denmark, Lithuania, Mexico or Poland, among others. It
has also taken part in a large number of projects in other markets such as
Australia, India, Italy, Malaysia, the Philippines, Taiwan, etc.
It carries out a wide variety of projects in the construction sector including roads,
hallmark buildings, airports, urban development, maritime, port and hydraulic
projects, tunnels and underground projects, upkeep and maintenance of roads,
water treatment, etc.
Aggregate and Precast Concrete
COMSA Corporación works through investee companies to produce and market
quarry aggregate for the construction industry and to make precast concrete
railway components.

6. Press Kit
Industrial Engineering
COMSA Corporación accumulates more than 50 years of experience in the
development of high technological engineering projects, focusing on the design and
execution of installations for the infrastructure, industrial and services sectors.
The company offers comprehensive solutions, covering several activity areas, and
at the same time, it has the necessary specialization to manage concrete projects.
In the industrial engineering field, COMSA Corporación focuses on installations and
systems, railway electrification and systems, fire protection, solutions for
Bio&Pharma, airports and ports, telecommunications and electricity transmission
and distribution.
Maintenance and Services
COMSA Corporación provides building and infrastructure maintenance, the
installation and maintenance of security systems, as well as auxiliary services such
as cleaning, janitorial and gardening, among others.
Transport, Logistics and Machinery
Through parent company COMSA Rail Transport and investee enterprises, the
group delivers rail freight services, services in terminals and rail traction for various
needs.
The company GMF provides maintenance and spare part services for rail vehicles
(rental, repair and maintenance, manufacture and sale of spare parts and swap
bodies). It also manages COMSA Corporación’s fleet of equipment.
Environment
In the Environmental business COMSA Corporación encompasses construction
and environmental services activities related to industrial waste management (soil
remediation, asbestos removal, landfill management).

7. Press Kit
Technology
In the technological sector COMSA Corporación is specialized in water an
environment technology (Adasa) and radio frequency broadcasting systems
(Egatel).
In this sense, the company has an important international activity in the
technological area, with projects in markets such as Algeria, Argentina, Australia,
Colombia, Peru, Morocco, Mexico or Romania.
Concessions
COMSA Corporación has a presence in all spheres of partnership with government
in the financing and management of infrastructures. Its concession operations are
divided into roads (motorways and dual carriageways), rail transport (metros and
tramways), real estate and equipment (hotels, hospitals, prisons, court buildings,
offices).
Renewable Energy
Its business is featured by the promotion, operation and maintenance of special
system energy generation facilities. It currently has projects in wind energy, solar
photovoltaic energy (on the ground and on rooftops), solar thermal energy and
biomass energy recovery. It also develops and executes energy projects.

8. Press Kit
Innovation
COMSA Corporación maintains a firm commitment to the technological transfer of
its R&D applied to the construction and maintenance of infrastructures. As a result
of its participation in major international consortia, the group has begun to market
Neoballast, a ballast with low degradation which reduces the noise and vibrations
caused by train traffic. It has also launched eQualtiq, a start-up providing
technological solutions for the optimization of energy consumption in facilities and
tertiary buildings in accordance with sustainability and energy efficiency criteria.
COMSA Corporación has also introduced BIM (Building Information Modelling)
procedures in the construction of infrastructures, a system which enables the
various building stages to be represented in three dimensions for the purpose of
optimizing project management, facilitating decision-making, and reducing costs.
This technology has already been implemented in renowned projects such as the
new Odense tram (Denmark), the construction of the Johan Cruyff stadium for the
FC Barcelona and the maintenance of the CERN installations in France and
Switzerland.
COMSA Corporación currently has more than 39 ongoing innovation projects. In
2017 the group developed R&D activities and projects totalling over 8 million Euros.
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