GES
- Company typePrivate
- Founded1996
- HeadquartersZamudio, Spain
- Headcount1,001–5,000
- GTM typeB2B
- OfferingServices
GES firmographics
Firmographics- Name
- GES
- Legal name
- GLOBAL ENERGY SERVICES SIEMSA S.A.
- Website
- https://services-ges.com
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Ownership category
- akta.pro rank
GES industry classification
Industry- Product category
- Renewable Energy Engineering and Construction Services
- NAICS
- Wind Electric Power Generation (221115), Solar Electric Power Generation (221114), Electric Bulk Power Transmission and Control (221121)
- SIC
- Switchgear & Switchboard Apparatus (3613), Power, Distribution & Specialty Transformers (3612)
- akta.pro primary industry
- Wind Farm EPC & Balance of Plant Construction (Civil, Electrical, Substations) (EUAMACAF)
- akta.pro secondary industries
- Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal) (EUAEAGAB), Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF), Substations, Transformers & Grid Step-Up Facilities (EHV Substations, GSU Transformers) (EUAMAFAE), Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB)
Keywords
Where GES is headquartered
LocationHeadquarters
- HQ city
- Zamudio
- HQ country
- Spain
- HQ region
- Europe
Offices6 records
Markets served
GES business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Infrastructure, Marketing or Sales
Revenue model
- Construction Services: EPC contracts for renewable energy projects including wind farms, solar plants, and BESS installations. Revenue recognized upon project completion with fixed-price or cost-plus arrangements.
- O&M Contracts: Ongoing operation and maintenance services for installed renewable energy assets, typically multi-year service agreements.
- Repowering Services: Wind turbine modernization projects replacing older units with new, higher-capacity turbines.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Enterprise B2B services with custom pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
GES product offering
Product offeringCore offering
GES provides engineering, construction, and operation & maintenance services for renewable energy assets including wind farms, solar photovoltaic plants, and battery energy storage systems (BESS). The company operates two divisions — Construction (engineering, BOP, EPC solar, solar assembly, BESS, substations) and Services (O&M, wind turbine installation, repowering, major correctives, permitting). GES delivers turnkey EPC projects plus multi-year O&M contracts across Europe, EMEA, and Latin America with a track record of 400+ renewable assets built and 7,200+ wind turbines installed.
Product overview
GES – Global Energy Services is a Spanish specialist providing engineering, construction, and operational services for renewable energy assets. The company operates a two-division model: Construction (covering project development through commissioning) and Services (covering the full operational lifecycle). Under Construction, the portfolio includes Wind BOP, Solar EPC, Solar Assembly, BESS, Transmission, and Engineering. Under Services, GES offers O&M, Wind Turbine Assembly, Repowering, Major Correctives, and Permitting. The company also integrates these capabilities into hybrid project delivery combining wind, solar and storage at single sites. GES operates across Europe, EMEA and Latin America with a track record of 400+ renewable assets built and 7,200+ wind turbines installed.
Differentiator
Problem solved
Functional benefit
Products and services
- Wind BOP (Balance of Plant) Engineering and construction of wind farm balance of plant infrastructure, covering civil works, electrical infrastructure, and balance-of-plant scope for wind energy projects. Targeted at renewable energy developers and operators of utility-scale wind farms.
- Solar EPC Turnkey engineering, procurement, and construction (EPC) services for utility-scale photovoltaic solar plants, from project design through commissioning. Targeted at solar plant developers and investors.
- Solar Assembly Specialized assembly and mounting services for photovoltaic solar installations, covering structural and mechanical works for solar plants. Targeted at solar plant developers and EPC contractors.
- BESS (Battery Energy Storage Systems) Construction and integration of battery energy storage systems, enabling grid stabilization and energy management alongside wind and solar renewable assets. Targeted at renewable energy developers and utilities.
- Transmission (Substations and High Voltage Lines) Construction of electrical substations and high-voltage transmission lines for renewable energy projects, ensuring grid connection infrastructure. Targeted at renewable energy developers and grid operators.
- Engineering Project engineering services that optimize the CAPEX/OPEX balance of renewable energy assets from the earliest project stages, covering design, simulation and technical optimization. Targeted at renewable energy developers and asset owners.
- Operation & Maintenance (O&M) Ongoing operation and maintenance services for wind, solar and BESS assets, maximizing efficiency, availability and profitability throughout the asset lifecycle. Targeted at wind farm operators and solar plant owners.
- Wind Turbine Assembly Specialized wind turbine installation services, handling the mechanical and electrical assembly of turbines at project sites. Targeted at wind farm developers and turbine OEMs.
- Repowering Wind farm repowering services that replace older, lower-capacity turbines with newer, higher-capacity units, extending asset life and increasing energy yield. Targeted at operators of aging wind farms.
- Major Correctives Large-scale corrective maintenance services for renewable energy assets, addressing major component failures or structural issues in wind and solar installations. Targeted at wind farm and solar plant operators.
- Permitting Permitting and regulatory approval services for renewable energy projects, managing the administrative and legal processes required for project development and construction authorization. Targeted at renewable energy developers and investors.
- Hybrid Project Integration Integrated construction and services combining wind, solar photovoltaic and battery energy storage (BESS) at a single site, enabling multi-technology renewable energy facilities. Targeted at large-scale renewable energy developers.
Quantifiable outcome
- 100% on-time project delivery
- +2 more outcomes
Companies that use GES
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
GES technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
GES partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Envision EnergycoreGES partnered with Envision Energy to expand two-blade turbine installations across Europe. Envision developed a two-blade wind turbine design after years of R&D to address high production and transportation costs of conventional three-blade turbines. GES brings its construction and O&M expertise to support deployment of this innovative technology, positioning it as a potential new industry standard.
- TECNALIAcoreGES and TECNALIA developed the ITACA research project to advance toward a data-driven, prescriptive solar maintenance model. The project aims to assess and characterize the condition of solar photovoltaic assets, enabling failure anticipation, production loss estimation, and optimal maintenance strategy prescription.
- CL Grupo IndustrialcoreGES is part of CL Grupo Industrial, a Spanish industrial group composed of 27 companies sharing a culture of innovation, opportunity, and recognition. The group operates in Spain and 10 other countries.
Scale indicators8 records
Recent moves8 records
Expansion highlights6 records
GES competitors and assessment
Company assessmentBroad incumbents
- Acciona Energía: Spanish global renewable energy developer, operator and EPC contractor with wind and solar projects across multiple continents. Acciona Energía is a direct competitor to GES in Spanish and LATAM renewable EPC markets and also operates as a developer/owner that hires EPC contractors.
- Siemens Energy (Wind / Gamesa): Global wind turbine OEM and service provider through Siemens Gamesa, offering integrated EPC, commissioning and O&M services worldwide. Direct competitor for wind O&M contracts and hybrid project delivery, with the scale advantage of being a turbine OEM.
- Cobra (ACS Group / VINCI): Major Spanish EPC contractor (now part of VINCI) with extensive renewable energy construction portfolio in wind, solar and transmission. Cobra is one of the largest competitors to GES in Spanish and LATAM renewable EPC and substation/transmission construction.
- Vestas Wind Systems: Global wind turbine OEM with one of the largest wind O&M service businesses in the world (Service segment). Competes with GES for wind O&M contracts, particularly for fleets where Vestas has the OEM relationship; broader scope than GES due to equipment manufacturing.
- Enel Green Power: Global renewable energy developer and operator with significant wind, solar and storage projects across Europe, LATAM and globally. Enel Green Power is both a potential customer for GES's EPC services and a competitor when it in-houses construction capabilities.
- Iberdrola Renovables (Iberdrola Energía Renovable): Spanish global utility with one of the world's largest renewable energy portfolios in wind, solar and storage. Iberdrola is both a key potential customer of GES for EPC and O&M services and a competitor that can internalize construction capabilities at scale.
Direct peers
- Elecnor: Spanish infrastructure and energy EPC contractor with substantial renewable energy (wind, solar, BESS) and electrical transmission/substation construction business. Elecnor is the closest direct peer to GES in Iberian renewable EPC services and competes on similar projects in Spain and LATAM.
- TSK: Spanish EPC contractor specializing in energy infrastructure including renewable power plants, substations and industrial facilities. TSK directly competes with GES in wind/solar EPC and electrical infrastructure construction across Spain and international markets.
- Mortenson Construction: Major US-based EPC contractor specializing in wind and solar energy construction, with significant repowering experience. Mortenson is the closest US analogue to GES in utility-scale wind/solar EPC services and a comparable pure-play renewable construction specialist.
Regional players
- SENER Grupo de Ingeniería: Spanish engineering and technology group with renewable energy, power and infrastructure capabilities including wind and solar project engineering. SENER competes with GES in engineering and project development for renewable energy, primarily in Spain and other Spanish-speaking markets.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
GES social profiles
Digital presenceGES compliance and trust
Trust signalCompliance9 records
GES financial estimates
Financial estimateRevenue estimate
Valuation estimate
GES leadership team
Management profileNumber of profiles
Profiles1 record
GES funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GES M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GES
What does GES do?
GES provides engineering, construction, and operation & maintenance services for renewable energy assets including wind farms, solar photovoltaic plants, and battery energy storage systems (BESS). The company operates two divisions — Construction (engineering, BOP, EPC solar, solar assembly, BESS, substations) and Services (O&M, wind turbine installation, repowering, major correctives, permitting). GES delivers turnkey EPC projects plus multi-year O&M contracts across Europe, EMEA, and Latin America with a track record of 400+ renewable assets built and 7,200+ wind turbines installed.
Is GES a public or private company?
GES is a private company. It is classified as corporate owned and is currently operating.
When was GES founded?
GES was founded in 1996. It employs 1,001 to 5,000 people.
Where is GES based?
GES is headquartered in Zamudio, Spain, in the Europe region.
How does GES make money?
Three revenue lines are on record. Construction Services are the primary driver. The others are O&M Contracts and repowering Services.
Who are GES's main competitors?
Broad incumbents on record are Acciona Energía, Siemens Energy (Wind / Gamesa), Cobra (ACS Group / VINCI), Vestas Wind Systems, Enel Green Power and Iberdrola Renovables (Iberdrola Energía Renovable). Direct peers are Elecnor, TSK and Mortenson Construction. SENER Grupo de Ingeniería is listed as a regional player.
Does GES have an API?
No public API is recorded for GES.
What industry is GES in?
GES's product category is Renewable Energy Engineering and Construction Services. Its primary akta.pro industry code is EUAMACAF, Wind Farm EPC & Balance of Plant Construction (Civil, Electrical, Substations), with a secondary code of EUAEAGAB, Renewable Energy Asset O&M (Wind, Solar, Hydro, Geothermal). Its NAICS code is 221115 and its SIC code is 3613.