What CYMI does

CONTROL Y MONTAJES INDUSTRIALES CYMI, S.A. is a Spanish EPC (Engineering, Procurement, Construction) and BOT (Build, Operate, Transfer) contractor founded in 1962 and headquartered in Madrid. The company delivers industrial engineering, supply, construction and commissioning services across four operating pillars: Energy (high-voltage transmission and distribution up to 800 kV, substations, renewable generation including wind, solar thermal, photovoltaic, and hydroelectric, and nuclear power plant services including SMR), Industrial (steel pipeline installation via its DAIP subsidiary, mining electrical installations, fuel storage terminals), Technology (data centres, hospitals, pharmaceutical and biotech facilities, and smart city infrastructure), and Infrastructure (airports, roads, ports, tunnels, smart buildings). Underlying technical capability centers on highly regulated, capital-intensive projects requiring specialist certifications — 180+ substations delivered, 1 GW+ of clean energy installed, offshore HVDC platform execution (DolWin6 at 900 MW, BorWin5), and nuclear plant work spanning Spain, China and South Korea (Qinshan, Kori, Garoña, Almaraz, Ascó-Vandellós, Trillo).

CYMI operates a project-based revenue model priced per tender. Income is generated through one-time EPC contracts, managed-services-style BOT arrangements that include an operating period before transfer to the client, and recurring Operation & Maintenance (O&M) on installed renewable and substation assets. GTM is sales-led and enterprise-field-driven: direct sales teams engage with energy majors, infrastructure developers, industrial firms and government entities, with regional offices in the USA (Virginia), Canada (Toronto), Peru (Lima) and Colombia (Bogotá) supporting cross-border tenders. Pricing is non-public, quote-based, and contracted on multi-year schedules.

The company has been wholly owned by COBRA IS Group — itself part of VINCI — since the end of 2021, and operates under VINCI's compliance regime (Code of Ethics, Anti-Corruption, Human Rights, Environmental and Safety standards). CYMI carries a comprehensive ISO certification stack (9001, 14001, 45001, 50001, 27001, 37001, 19601, 19603), employs more than 700 professionals, and executes projects across four continents and over 20 countries. Customer concentration skews toward large Spanish utilities (Iberdrola, Endesa, Naturgy, Repsol, Cepsa), energy and construction primes (Siemens Energy, Ferrovial, Acciona, ACS, FCC), and large public-infrastructure counterparties (Adif, Aena, Metro Madrid).

Name

CYMI

Legal name

CONTROL Y MONTAJES INDUSTRIALES CYMI, S.A.

Website

https://cymisa.com

Company type

Private

Founded year

1962

Operating status

Operating

Short description

Spain-based EPC and BOT contractor (founded 1962) delivering high-voltage transmission, substations, renewables, nuclear, oil-and-gas pipelines, data centres, and transport infrastructure for energy majors, utilities, and government clients across 20+ countries.

Ownership category

akta.pro rank

Product category

Industrial Engineering & Construction Services

NAICS

Electric Power Generation, Transmission and Distribution (2211)

SIC

Construction Machinery & Equip (3531)

akta.pro primary industry

Substation & Interconnection EPC (Collector/POI Substations, Switchyards) (EUAEADAC)

akta.pro secondary industries

FACTS / Reactive Power & Power Quality Systems EPC (SVC/STATCOM, Capacitor Banks) (EUAEABAE), Project & Program Management (PMO), Controls & Reporting (EUAKAAAC), Distribution Substations & Switching Stations (MV) EPC (EUAEACAC)

Keywords

• Industrial EPC services
• High voltage transmission
• Power infrastructure construction
• Renewable energy construction
• Oil gas pipeline installation

Headquarters

HQ city

Madrid

HQ country

Spain

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. EPC Contracts: CYMI generates revenue primarily through Engineering, Procurement, and Construction (EPC) contracts for industrial facilities, energy plants, transmission lines, substations, and infrastructure projects. These are typically large-scale, long-term projects with significant contract values.
2. BOT Projects: Build, Operate, Transfer (BOT) contracts where CYMI constructs, operates, and eventually transfers projects to clients, providing ongoing revenue during operation phases.
3. Operation and Maintenance (O&M): Ongoing operation and maintenance services for installed infrastructure including renewable energy plants, substations, and industrial facilities.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

CYMI provides engineering, procurement, construction (EPC) and build-operate-transfer (BOT) services for industrial, energy, technology, and infrastructure projects. Core deliverables include very high voltage transmission lines and substations up to 800 kV, renewable and nuclear power plants, data centres, hospitals, oil & gas pipelines (via the DAIP subsidiary), mining electrical installations, fuel storage terminals, and transportation infrastructure systems. The company also delivers operation and maintenance (O&M) services for installed infrastructure across more than 20 countries.

Product overview

CYMI (Control y Montajes Industriales) is an industrial services company offering a portfolio of integrated engineering, construction, and commissioning services across four main business areas: Industrial (Oil & Gas pipelines through DAIP subsidiary, mining solutions, fuel storage terminals), Energy (high voltage transmission lines up to 800 kV, electrical substations, renewable energy plants with over 1GW installed capacity, nuclear power plant services including SMR), Technology (data centre solutions, hospital construction, pharmaceutical/biotechnology facilities, smart city infrastructure), and Infrastructure (airports, roads, ports, tunnels, smart buildings). The company operates on a project-based EPC (Engineering, Procurement, Construction) and BOT (Build, Operate, Transfer) delivery model, serving clients globally across energy, industrial, technological, and transport infrastructure sectors.

Differentiator

Problem solved

Functional benefit

Brands

• DAIP: Internacional de Pipelines DAIP, a CYMI Group company specializing in the installation and maintenance of steel pipelines for transporting fluids such as crude oil, gas, water and refined products.

Products and services

• High Voltage Transmission Lines Execution of EPC and BOT projects on Very High Voltage (VHV) Transmission Lines up to 800 kV, both overhead and underground, for utility and transmission system operator clients.
• Power Distribution Lines Execution of EPC and BOT projects on Power Distribution Lines up to 45 kV, both overhead and underground, for utilities and industrial customers.
• Electrical and Transformer Substations Execution of EPC and BOT projects in Electrical and Transformer Substations up to 800 kV, ranging from conventional to GIS substations; more than 180 substations delivered nationally and internationally.
• Data Centre Solutions Global solutions for Data Centre projects, offering EPC, Design and Build, and Design-Bid-Build approaches for mission-critical digital infrastructure clients worldwide.
• Hospital Construction and Commissioning Construction and commissioning of hospitals using advanced technologies and best practices to deliver safety, functionality, and efficiency for healthcare operators.
• Pharmaceutical and Biotechnology Solutions Comprehensive design and construction solutions for pharmaceutical production plants, including cleanrooms, laboratories, and controlled storage areas for pharmaceutical and biotechnology clients.
• Smart City Infrastructure Deployment of smart energy grids, water management, district heating, electric vehicle infrastructure, street lighting, and smart surveillance systems for municipal urban transformation programs.
• Oil & Gas Pipeline Installation (DAIP) Installation and maintenance of steel pipelines for transporting crude oil, gas, water, and refined products, delivered by the DAIP subsidiary for oil & gas majors and pipeline operators.
• Mining Solutions Design and installation of industrial cabling and assemblies, pre-commissioning, and functional testing for mining operators, supporting safe and efficient mining operations.
• Fuel Storage Terminals Turnkey contracts covering detailed engineering, procurement management, construction supervision, execution, commissioning, operation, and maintenance of fuel storage terminals with atmospheric and pressurised tanks for oil & gas and logistics clients.
• Renewable Energy Plants Construction of wind farms, photovoltaic and solar thermal plants, and hydroelectric projects, with over 1 GW of clean energy installed and 50+ hydroelectric power plant projects delivered.
• Nuclear Power Plant Services Comprehensive services from technical and economic feasibility studies to design, engineering, construction, and commissioning of nuclear power plants, including innovative Small Modular Reactor (SMR) plants, for nuclear operators and government agencies.
• Infrastructure Installations Comprehensive electrical and electromechanical installations for road, airport, port, tunnel, and housing development infrastructure, including beaconing, lighting, power stations, transformer substations, emergency supplies, terminals, and automatic baggage handling systems, delivered for transport authorities and concessionaires.
• Smart Building Systems Installations and systems for intelligent buildings including air conditioning, heating, electricity, telecommunications, home automation, plumbing, public address systems, fire detection and suppression, solar energy, and security for commercial and institutional building operators.

Quantifiable outcome

• Over 1GW of clean energy installed capacity
• +4 more outcomes

Named customers44 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• COBRA IScoreStrategic or Co-development Partner · 1 January 2021CYMI has been part of the COBRA IS group since the end of 2021. COBRA IS is a major Spanish industrial services group, providing CYMI with corporate backing and integration into a larger network of infrastructure and energy service companies.
• VINCIcoreStrategic or Co-development PartnerCYMI is adhered to the VINCI norms and standards, which establish shared principles for all employees and business partners. VINCI is a global concessions and construction company. CYMI follows VINCI's Code of Ethics and Conduct, Anti-Corruption Code of Conduct, Human Rights Guidelines, Environmental Guidelines, and Safety Declaration.
• DAIP (Internacional de Pipelines)coreStrategic or Co-development PartnerDAIP (Internacional de Pipelines), a CYMI Group company, specializes in the installation and maintenance of steel pipelines for fluid transport. Founded in 1974, DAIP has executed oil and gas projects in Spain, Algeria, Morocco, Brazil, Colombia, Chile, Portugal, Saudi Arabia, and the United States, playing a crucial role in developing the Spanish Gas Network and Maghreb-Europe Gas Pipeline.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Ingeteam: Spanish power electronics and EPC firm specializing in wind, PV, hydro, and substation energy conversion; comparable to CYMI on renewable energy EPC and electrical infrastructure delivery in Spanish-speaking markets.

Broad incumbents

• Ferrovial Construcción: Spanish-listed infrastructure major with construction, services, and energy project execution; competes with CYMI in transportation infrastructure (airports, rail, roads) and shares clients like Aena and Adif.
• Acciona Infrastructure: Spanish-listed infrastructure conglomerate with construction, energy concessions, and industrial divisions; broader and larger than CYMI but directly competes for renewable EPC, transmission, and large infrastructure tenders in Iberia and LatAm.
• VINCI Energies: Energy arm of CYMI's ultimate parent VINCI, operating across electrical infrastructure, telecom, and industrial automation globally; a sister-company incumbent that competes for the same European utility and infrastructure clients CYMI serves.
• ACS Group / Cobra Industrial: Spanish-listed construction and industrial services conglomerate; competes with CYMI on energy EPC, substations, and large infrastructure tenders through its industrial and construction divisions.

Direct peers

• Elecnor: Spanish-listed EPC and infrastructure group with comparable activities in energy T&D, substations, renewables (wind, PV), telecom installations, and water; operates in similar geographies (Iberia, LatAm) and shares many of the same utility and infrastructure clients as CYMI.
• Técnicas Reunidas: Madrid-based EPC contractor for oil & gas, refining, and power generation; overlaps with CYMI on energy project execution, large international EPC contracts, and Spanish corporate footprint.
• TSK: Spanish private EPC firm specializing in power generation, electrical installations, and industrial plants; comparable to CYMI in energy infrastructure focus, EPC delivery model, and international footprint.
• SENER Engineering and Construction: Spanish engineering and construction group active in power, oil & gas, and infrastructure EPC; shares CYMI's specialty EPC positioning, Spanish heritage, and execution on complex multi-year projects for energy majors.
• Cobra Instalaciones y Servicios (Cobra IS): Parent company of CYMI within VINCI, Cobra IS provides industrial installation and energy services across Iberia and Latin America with a nearly identical portfolio in HV substations, renewables, and telecom installations; it is the most directly comparable peer for CYMI on scope, geographies, and client base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/cymi-s-a-

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CYMI