What Magestop does

Magestop is the operations and maintenance (O&M) entity within Spain-headquartered ENSO (Energy Environment and Sustainability S.L.U.), responsible for managing ENSO's Portuguese bioelectric biomass plants at Viseu and Fundão. Its parent ENSO is a vertically integrated bioenergy company that develops, finances, builds, and operates biomass-based industrial decarbonization assets across the Iberian Peninsula, with ~200 employees and a portfolio of six active facilities plus plants under construction. The company targets large industrial clients in chemical, food & beverage, agri-food, pulp & paper, and pharmaceutical sectors who require reliable thermal energy and process steam, replacing fossil fuels (natural gas, coal, fuel oil) with renewable biomass under the ESCO (Energy Service Company) model.

ENSO's technology stack centers on proprietary boiler designs featuring air-cooled vibrating grates, multi-stage gas cleaning, air-cooled condensers, and biogenic CO2 capture and recovery systems — with the Garray facility being the first plant in Spain to integrate biogenic CO2 capture at industrial scale. Combined heat and power (cogeneration) plants at Viseu and Fundão achieve over 89% efficiency; the Garray plant generates 127,500 MWh/year of renewable electricity and captures up to 50,000 tonnes of biogenic CO2 annually in partnership with Carburos Metálicos. The group also maintains innovation pipelines in gasification, pyrolysis, e-fuels, and by-product valorization. Magestop, based in Queijas, Lisboa, focuses on O&M management for the Portuguese portion of this footprint while ENSO leads project development, engineering, construction, and biomass supply logistics across the full value chain.

The business model combines long-term (multi-year) energy supply contracts under the ESCO model — where ENSO assumes all investment, ownership, and maintenance risk and clients receive off-balance-sheet renewable energy — with regulated grid electricity sales from bioelectric plants and ancillary biomass supply services. Pricing is fixed or CPI-indexed and not publicly disclosed. Customers include ACOR Cooperative (Olmedo), García-Carrión (Villanueva de los Castillejos), Solvay (Torrelavega, under construction), and Cítricos del Andarax (Gádor, Almería), among others. ENSO has raised €165 million in syndicated debt from MUFG, Santander, Natixis CIB, Bank of America, and Cajamar to fund greenfield development, and is majority-owned by Igneo Infrastructure Partners, with the Marguerite Fund holding a 90% stake in the Viseu plant.

Name

Magestop

Legal name

Magestop

Website

https://enso.energy

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Magestop is the operations and maintenance entity within Spain's ENSO group, managing the Viseu and Fundão bioelectric biomass plants in Portugal under the ESCO model. ENSO finances, builds, and operates dedicated biomass energy facilities serving enterprise industrial clients in food & beverage, agri-food, and chemicals.

Ownership category

akta.pro rank

Product category

Bioenergy Plant Operations & Maintenance

NAICS

Solid Waste Combustors and Incinerators (562213)

SIC

Cogeneration Services & Small Power Producers (4991), Motors & Generators (3621)

akta.pro primary industry

Environmental & Permitting Execution Services (Erosion Control, Habitat Mitigation, Compliance) (EUAEADAL)

Keywords

• Biomass plant operations
• Bioenergy maintenance
• Power plant O&M
• Renewable energy services
• Industrial energy operations

Headquarters

HQ city

Queijas, Lisboa

HQ country

Portugal

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Supply Chain

Revenue model

1. Energy Supply Contracts (ESCO Model): ENSO develops, finances, builds, and operates biomass plants under the Energy Service Company (ESCO) model, supplying thermal and/or electrical energy to industrial clients under long-term supply contracts. The company assumes investment, ownership, and maintenance, while clients receive energy with no initial investment required and off-balance-sheet treatment.
2. Renewable Energy Generation and Grid Sales: ENSO develops and operates regulated renewable energy assets (bioelectric plants) that generate electricity sold to the national grid. Plants like Garray, Viseu, and Fundão operate under regulated frameworks, producing electricity sold to distribution networks.
3. Biomass Supply and Logistics Services: ENSO plans and operates the entire biomass supply chain from source regions to plants, providing customized supply solutions for different facilities, fuel types, and consumption profiles with guaranteed traceability.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Magestop is the operations and maintenance (O&M) entity within the ENSO group, responsible for managing the Viseu and Fundão Bioelectric Plants in Portugal. The company handles plant operations, predictive maintenance, environmental control, and operational data platform management for biomass-to-energy facilities, sharing ENSO's management model and operational expertise across the group's Iberian portfolio.

Product overview

ENSO operates as a comprehensive bioenergy and industrial decarbonization company offering a portfolio of regulated renewable assets (bioelectric and biothermal plants), full-cycle bioenergy services (project development, engineering, construction, biomass supply, and operations & maintenance), and strategic innovation areas (CO2 capture, e-fuels, by-product valorization, and gasification/pyrolysis). The company operates six active facilities across Spain and Portugal, with projects under development, all delivered primarily under an ESCO (Energy Services Company) model that provides off-balance-sheet decarbonization solutions for industrial clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Operations and Maintenance of Bioeléctrica de Viseu Managed operations and maintenance of the 15 MWe and 49 MWt Viseu bioelectric plant in Portugal, operating at over 89% efficiency using pine and eucalyptus forest residues.
• Operations and Maintenance of Bioeléctrica de Fundão Managed operations and maintenance of the 15 MWe and 49 MWt Fundão bioelectric plant in Portugal, generating approximately 120,000 MWh of renewable electricity per year from local forest biomass.
• Comprehensive Plant Operations and Maintenance Services Cross-functional O&M service package including predictive maintenance, environmental control, and operational data platform management to maximize efficiency and service life of biomass power plants.

Quantifiable outcome

• 50,000 tonnes of CO2 avoided annually across operations
• +5 more outcomes

Named customers4 records

Segments5 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Partnerships

Nine partnerships are on record, tiered core, major and minor.

• FPT EnergíacoreStrategic or Co-development PartnerLocal partner in Portugal for development of Viseu and Fundão biomass plants, collaborating with ENSO on international bioenergy projects.
• Carbursos Metálicos (Air Products Group)coreStrategic or Co-development PartnerPartnership for CO2 capture plant at Garray biomass facility. Carbursos operates the capture plant while ENSO provides steam and energy. Project prevents 100,000 km/year of road transport for liquid CO2 and is supported by European LIFE Program.
• ELECNORmajorImplementation/ SI/ Consulting PartnerEPC contractor providing construction and execution supervision for Viseu and Fundão biomass plants.
• MagestopcoreStrategic or Co-development PartnerResponsible for operation and maintenance management of Viseu and Fundão biomass plants, sharing management model and operational expertise.
• García-CarrióncoreStrategic or Co-development PartnerMajor agri-food company (Europe's largest winery) partnered with ENSO for biomass plant construction and operation to supply thermal energy under ESCO model at Don Simón plant in Huelva.
• ACOR CooperativecoreStrategic or Co-development PartnerAgricultural cooperative partnered with ENSO for construction of largest cogeneration plant from biomass in Spain's agro-industrial sector, supplying renewable energy from biomass produced by cooperative members.
• FPNCYL (Fundación Patrimonio Natural de CyL)minorStrategic or Co-development PartnerFoundation collaborating on decarbonization and industrial symbiosis project at Garray plant in Castile and León.
• Junta de Castilla y LeónmajorOthersRegional government providing support and backing for major projects including Olmedo cogeneration plant development.
• AVEBIOMminorOthersSpanish biomass association where ENSO's CEO participated in Bioenergy Congress presenting on biomass challenges and opportunities.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Regional players

• Statkraft: Norwegian state-owned renewable energy generator with European biomass and bioenergy assets. Comparable as a regional/northern-European biomass operator, providing a benchmark for scaling biomass-based generation beyond Iberia.

Broad incumbents

• Veolia Environnement: Global environmental services and energy operator with biomass, waste-to-energy, and industrial energy services operations. Comparable given overlapping technology stack (waste/biomass combustion) and ESCO-style industrial contracts.
• Iberdrola: Global Spanish utility with renewable generation including biomass plants across Spain and Portugal. Larger and more diversified than ENSO but overlaps in Iberian biomass generation, cogeneration, and ESCO-type industrial supply.
• Acciona Energía: Spanish pure-play renewables IPP with biomass capacity alongside wind and solar. Comparable as a large Iberian renewables operator with cogeneration experience and infrastructure-scale project finance capability.
• ENGIE: Global energy and energy services company with biomass, cogeneration, and ESCO operations across Europe. Comparable as a large incumbent running industrial decarbonization and on-site energy supply contracts similar to ENSO's model.
• Naturgy Energy Group: Major Spanish gas and electricity utility with a renewable generation portfolio that includes biomass and cogeneration assets. Operates broader portfolio but has overlapping capability in biomass energy and industrial supply.
• EDP - Energias de Portugal: Portuguese-headquartered global utility with renewable assets including biomass in Iberia. Directly comparable given ENSO's Portuguese operations at Viseu and Fundão and overlap in regulated renewable generation.

Direct peers

• Ence Energía y Celulosa: Spanish pulp and renewable energy company operating biomass cogeneration plants tied to its industrial sites and third-party offtakers. Closest direct peer to ENSO's biomass-cogeneration-for-industrial-clients model in Iberia.
• Forestalia: Spanish developer of biomass-fired renewable energy projects, active in forestry regions of Aragón and elsewhere. Directly comparable as a project developer and operator of forest-biomass plants serving industrial and grid offtakers in Spain.

Emerging players

• Repsol: Spanish integrated energy company expanding into renewables and industrial decarbonization. Less mature in biomass but increasingly relevant as a counterparty for industrial offtakers that could otherwise use biomass.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/magestop

Compliance8 records

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 Magestop