What HMS does

HMS (legally HIGH MAINTENANCE SERVICES, S.L.) is a privately held Spanish industrial services company headquartered in Albacete, Spain, founded in 2007. The firm specializes in industrial electromecánica services across five core service lines: wind energy (Energía Eólica), photovoltaic energy (Energía Fotovoltaica), electrical substations (Subestaciones Eléctricas), industrial maintenance (Mantenimiento Industrial), and a specialized blade repair / height work department (Departamento de Palas). The company employs between 11 and 50 people and positions itself as a global services provider, dispatching technical teams to client sites worldwide for installation, maintenance, inspection, and repair work.

The company's technical capabilities are anchored in two differentiated areas. First, it designs and manufactures proprietary modular prefabricated electrical substations with factory-assembled control systems, custom SCADA integration, and IP-67 quick-connect outdoor connectors for rapid on-site deployment. Second, it operates a GWO-certified Blade Repair Department with Amu Sud Blade Repair B certification, performing drone and rope-access inspections, anti-lightning system repairs, vortex repairs, serration installations, and structural composite work on wind turbine blades. The firm also maintains proprietary sizing and design tools for multi-site photovoltaic deployments, addressing roof integrity, waterproofing, and structural anchoring considerations for commercial customers.

HMS generates revenue primarily through project-based professional services contracts for industrial maintenance and photovoltaic installations, supplemented by turnkey, one-time substation engineering and construction projects. Pricing is custom-quoted per project and not publicly disclosed. The go-to-market model is enterprise field sales with direct client relationships, supported by a content-marketing website, email inquiries, and social media integration. Primary customer segments include wind farm owners and operators (designated as the primary segment), commercial and industrial photovoltaic clients such as multi-site retail, hotel, and logistics operators, industrial power generation facilities requiring high-voltage infrastructure, and industrial manufacturing plants requiring mechanical preventive and corrective maintenance. No external funding, parent company, or public listing is disclosed.

Name

HMS

Legal name

High Maintenance Services, S.L

Website

https://hms-maintenance.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

HMS is an energy company that provides wind power, photovoltaic energy, electrical substations, and industrial energy services.

Ownership category

akta.pro rank

Headquarters

HQ city

Albacete

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Industrial Maintenance Services: Project-based maintenance and repair services for industrial plants, wind farms, and energy installations. Services include preventive maintenance, corrective repairs, and technical inspections.
2. Electrical Substation Design and Construction: Custom prefabricated electrical substation projects including high voltage engineering, factory assembly, and field installation. Turnkey projects delivered globally.
3. Photovoltaic Installation Services: Engineering design, supply chain management, and construction of photovoltaic plants for rooftop and ground-mounted installations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

HMS is an industrial electromechanical services company that provides wind power maintenance, photovoltaic energy installation, electrical substation design and construction, and industrial plant maintenance services. The company specializes in modular prefabricated electrical substations, GWO-certified wind turbine blade repair, and custom-engineered maintenance programs, delivering these services through global field-deployed technical teams to enterprise clients in the renewable energy and industrial sectors.

Product overview

HMS (High Maintenance Services) is an industrial electromechanical services company with 17 years of experience providing specialized maintenance and installation services for renewable energy and industrial sectors. The company operates across five core service lines: Wind Energy (Energía Eólica) covering turbine installation, wiring, maintenance and inspection services; Photovoltaic Energy (Energía Fotovoltaica) for roof-mounted solar installations with design engineering and project management; Electrical Substations (Subestaciones Eléctricas) for high-voltage prefabricated modular solutions; Industrial Maintenance (Mantenimiento Industrial) for mechanical plant services; and a specialized Blade Department (Departamento de Palas) for height work and fiber repairs. Services are delivered globally with operations worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Wind Energy Services (Energía Eólica) Wind energy services for wind farm owners and operators including turbine installation, electrical wiring and commissioning, turbine maintenance (tightening, alignment, lubrication, cleaning), wind turbine inspections, and vertical access work. Targeted at utility-scale wind energy installations requiring specialized electromechanical service expertise.
• Photovoltaic Energy Services (Energía Fotovoltaica) Roof-mounted photovoltaic installation services for commercial and industrial clients including design engineering, project management, proprietary sizing tools, and advisory services for waterproofing, structural calculations, anchoring solutions, and safety installations. Targeted at multi-site clients such as supermarket chains, hotels, and logistics operators.
• Electrical Substations (Subestaciones Eléctricas) High voltage electrical substation design and construction services including custom modular transportable prefabricated designs, factory assembly of control systems and equipment, SCADA integration, and rapid on-site installation with quick-connect IP-67 outdoor connectors. Targeted at industrial facilities and power generation operators requiring high-voltage electrical infrastructure.

Quantifiable outcome

• Reduced industrial plant breakdowns through preventive maintenance programs
• +1 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature2 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• TSK: Spanish EPC contractor with strong renewable energy (wind, solar PV) and electrical infrastructure capabilities; comparable to HMS as a Spanish-based multi-disciplinary contractor serving wind, PV, and industrial clients.
• Sener: Spanish engineering and technology group active in renewable energy and power infrastructure projects; comparable to HMS in combining industrial/electromechanical capabilities with energy-sector project delivery.
• Abengoa: Spanish company historically focused on renewable energy infrastructure and electrical projects; comparable to HMS through its renewable energy and electrical infrastructure activities, though at significantly larger scale.

Broad incumbents

• Elecnor: Spanish infrastructure group with significant renewable energy and electrical grid construction activities; comparable to HMS through its industrial services and energy infrastructure execution, though operating at much larger scale.
• Cobra Group (ACS): Spanish-headquartered industrial and energy services group within ACS, active in renewable energy EPC and electrical infrastructure; comparable to HMS in service mix but with substantially larger scale and geographic footprint.
• Spie: Major European multi-technical industrial services provider; comparable to HMS through industrial maintenance, electrical, and energy infrastructure services delivered to enterprise clients across Europe.
• Vinci Energies: European industrial services group within Vinci providing electrical, HVAC, and energy infrastructure services; comparable to HMS in industrial maintenance and electrical infrastructure work for energy and industrial clients.
• Equans: European multi-technical services provider covering electrical, mechanical, and energy infrastructure; comparable to HMS through industrial maintenance and energy sector services across multiple European geographies.
• Siemens Gamesa Renewable Energy: Global wind turbine OEM with a substantial services arm providing maintenance, blade repair, and condition monitoring; comparable to HMS through its wind turbine service and blade repair capabilities.
• Vestas: Global wind turbine OEM with a large service business covering maintenance, blade repair, and upgrades; comparable to HMS through its wind energy maintenance service portfolio, albeit at vastly greater scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

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 HMS