Marwen Ingenieria

What Marwen Ingenieria does

GRUPO MARWEN CALSAN S.L., operating under the trade name MARWEN, is a Spanish private limited company (Sociedad Limitada) incorporated in 2018 in Jaén, Andalusia, with operational experience of more than 15 years. The firm is a multidisciplinary engineering and consulting group focused on the energy and digital transition, organized around six service lines: Energy Efficiency (audits, municipal energy management, photovoltaic self-consumption, public lighting, ESCO support), Climate Change (carbon footprint, ISO 14001/50001, sustainability/CSR strategy, circularity plans, EINF), Verification (ENAC-accredited CAE Energy Savings Certificate verification and GHG verification), Business Strategy (equality plans, grant management, ISO 9001, mentoring), ICT Solutions (custom software and web/app development, SEO/SEM, cybersecurity, digital marketing, hosting, social media), and R&D&I through its Marwenlab in-house laboratory. A seventh unit, WSpace, was launched in 2024 as the group's Aerospace & Defense division, focused on Earth observation, GEOINT and satellite-applied AI for defense, civil security and environmental emergency management.

MARWEN's technology stack combines ISO/IEC-certified consulting methodologies (ISO 9001, 14001, 50001, UNE 216701, ISO 17029:2019, ISO 14065:2021) with a suite of proprietary software tools developed in-house — I-Sustainability, iRSE, M-urbana, MWAP (GIS-based public lighting), MWIF, ITLEAN, and the GEDESI/SolAgro+/ALMAfot+/inGREEN_H2/GENPOL_H2/AGROSPACE/THALIA/SAIFFE R&D methodologies, several co-developed with the ENIAS research team at the University of Jaén. The company holds ENAC accreditation 11/VV023 as a CAE Verifier, AENOR Energy Service Provider classification, Achilles RePro qualification, the Innovative SME (MEIC) seal, and is a UN Global Compact signatory.

The business model is professional-services-led: revenue is generated through (a) project-based engineering, consulting, verification and training fees, often under multi-year frameworks with energy, industrial, public-sector and tourism clients; (b) ICT custom-software and digital-marketing project contracts (delivered via the Easywen sub-brand); (c) subsidized SME digitalization services under the Spanish government's Digital Kit and Kit Consulting programs, where MARWEN acts as an accredited Digitalizing Agent; (d) public R&D grants from CDTI, CTA, TRADE and FEDER (disclosed project budgets total ~€746k across four named projects); and (e) subsidized corporate training (formación bonificada) via the online Plataforma Teleformación. The company sells primarily through direct enterprise field sales via 16 owned offices — HQ at the Geolit Science & Technology Park in Mengíbar (Jaén) plus offices in Seville, Jaén, Madrid and 12 international locations (Argentina, Brazil, Chile, Colombia, Ecuador, Guatemala, Mexico, Nicaragua, Peru, Portugal, Uruguay and the US) — and through the Digital Kit / Kit Consulting agent channel for Spanish SMEs. Customer base includes Naturgy, Endesa, Iberdrola, TotalEnergies, Edison Next, Ignis, Acciona, Eiffage, Moeve, IKEA, Volvo, Hitachi, Rovi, Migasa, Acesur, Valentin Hotels, the Universities of Jaén and Granada, AENOR, Hefame, JCarrión, Globalia, Hellio, Codelco, Collahuasi, Pacific Rubiales, RWE, Diamond Resorts, BID, and government clients in Chile, Uruguay, Morocco and Guatemala.

Name

Marwen Ingenieria

Legal name

GRUPO MARWEN CALSAN S.L.

Website

https://marwen.es

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

51–100 employees

Short description

Marwen Ingeniería is a Spanish engineering and consulting firm specializing in energy efficiency, climate change, ISO/ENAC-accredited verification, ICT solutions, and R&D for utilities, industry, public sector, and Spanish SMEs across 17 countries.

Ownership category

akta.pro rank

Product category

Engineering & Energy Consulting Services

NAICS

Computer Systems Design Services (541512)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro industry

PRIMARYBPAHAJAF

EHS Management Systems & ISO Consulting (ISO 14001/45001)

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Environmental, Health & Safety (EHS) Consulting

SECONDARYBPADALAM

Circular Economy & Resource Efficiency

Business & Public Services/International Organizations & Development/Climate, Environment & Sustainable Development Programs

SECONDARYEUAEADAD

SCADA, Controls & Communications Integration (RTU, Fiber, Networking)

Energy, Utilities & Environment/Energy Infrastructure & Services (EPC, O&M, Field Services)/Renewable Balance-of-Plant EPC (Wind/Solar/Hydro)

Keywords

• Energy efficiency consulting
• Sustainability consulting services
• Carbon footprint verification
• ISO 50001 implementation
• Photovoltaic engineering services

Headquarters

HQ city

Jaén

HQ country

Spain

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering, Consulting & Verification Fees: Project-based professional services revenue from energy audits, ISO 50001/14001/9001 implementation, sustainability/carbon footprint reports, GHG and CAE verification, energy master plans, ESCO/ESE tendering assistance, municipal energy management, training, and strategic plans. Revenue is recurring through multi-project/multi-year frameworks with private and public clients.
2. ICT Solutions & Software Development: Custom software/app/web development, SEO-SEM, social media management, corporate image, graphic design, hosting, cybersecurity, digital marketing — delivered as project or service contracts to SMEs, municipalities, and organizations.
3. Digital Kit / Kit Consulting Subsidized Service Delivery: Revenue from delivering subsidized digitalization and consulting services to Spanish SMEs under government programs (Digital Kit €2,000–€12,000 subsidies; Kit Consulting €6,000–€24,000 subsidies depending on company size). MARWEN is an accredited digitalizing agent.
4. R&D Grants (Public Funding): Public funding from CDTI, CTA (Corporación Tecnológica de Andalucía) and TRADE Agency of Andalusia for research projects (SolAgro+, ALMAfot+, THALIA, SAIFFE, GENPOL_H2, inGREEN_H2, AGROSPACE, GEDESI). Aggregate disclosed project budgets include €251,944 (GEDESI), €188,234 (SolAgro+), €241,940.22 (ALMAfot+), €64,169.44 (AGROSPACE).
5. Bonified/Corporate Training: Revenue from subsidized training programs (formación bonificada) and online courses via the Plataforma Teleformación e-learning platform (courses catalog).

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels9 records

Core offering

Marwen Ingeniería is a private Spanish engineering and consulting firm that delivers energy and digital-transition services to enterprises, public administrations, and SMEs. Its core offerings span energy audits and ISO 50001 implementation, climate-change and carbon-footprint consulting, ENAC-accredited CAE and GHG verification, photovoltaic self-consumption engineering, ICT and software development, subsidized SME digitalization, and applied R&D through the in-house Marwenlab and WSpace aerospace/defense division.

Differentiator

Problem solved

Functional benefit

Brands

• WSpace: Aerospace and Defense division of MARWEN, focused on research and applied projects in Earth observation, satellite imagery, AI for environmental emergencies, maritime safety (THALIA), agricultural monitoring (AGROSPACE), and environmental emergency management (SAIFFE).
• MarwenLAB
• be|CAE
• Easywen

Products and services

• Energy Efficiency Services End-to-end energy efficiency consulting and implementation services for industrial, public, and commercial clients, including energy audits, municipal energy management, building energy ratings, ESCO/ESE contracting technical assistance, EVO M&V protocol, thermographic and lighting analysis, SUMPs/WTPs, and implementation of EE measures such as biomass boilers, photovoltaic self-consumption, LED lighting, EV charging points, and public lighting panel adaptation.
• Climate Change Consulting Services Climate change and sustainability consulting for enterprises and municipalities, including carbon footprint calculation, CSR/EINF reports, ESG sustainability strategies, ISO 50001 and ISO 14001 implementation, Circularity Plans, Agenda 21, Mayors' Pact, green procurement, life cycle analysis, registration in Andalusian and Spanish carbon footprint registries, local climate action plans, and emission compensation.
• Verification Services (CAE and GHG) Independent verification services including ENAC-accredited CAE (Energy Savings Certificate) Verification under accreditation number 11/VV023 — referencing ISO 17029:2019 and ISO 14065:2021 — and GHG (Greenhouse Gas) verification, supporting regulatory compliance, transparency, and credibility in the Spanish CAE system established by Royal Decree 36/2023.
• Business Strategy Services Business strategy and corporate consulting covering business mentoring, subsidized training, equality plans, grant management, strategic plans, internationalization plans, gender awareness actions, municipal equality plans, marketing plans, data protection, youth plans, ISO 9001 quality management implementation, and contractor classification files.
• ICT Solutions Services (Easywen) Custom ICT and digital solutions delivered under the Easywen brand, including app and web design and development, custom software, SEO/SEM positioning, social media management, corporate image, graphic design, hosting, email, corporate videos, cybersecurity, and digital marketing, plus delivery of the Spanish government's Digital Kit and Kit Consulting subsidized digitalization programs for SMEs.
• R&D&I / Marwenlab Research Services Applied R&D&I services and consulting delivered through the in-house Marwenlab ideas laboratory, covering energy, transport, and environment research, framed within National and European R&D&I Plans and Programs, and producing proprietary software tools and methodologies for clients.
• WSpace Aerospace and Defense Division Aerospace and Defense division of GRUPO MARWEN CALSAN S.L., delivering AI and satellite-imagery solutions for Earth observation, remote sensing, GEOINT, and defense and security applications — including the THALIA maritime critical infrastructure surveillance project, the SAIFFE environmental emergency management project, and the AGROSPACE agricultural monitoring project.
• be|CAE CAE Verification Platform Web-based platform for the Spanish Energy Savings Certificate (CAE — Certificado de Ahorro Energético) system, supporting standardized and singular efficiency actions and the corresponding ENAC-accredited verification workflow, operated by GRUPO MARWEN CALSAN S.L. as a CAE Verifier under accreditation 11/VV023.

Named customers46 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability14 records

Feature14 records

Partnerships

13 partnerships are on record, tiered core and minor.

• University of Jaén — ENIAS Research TeamcoreStrategic or Co-development PartnerLong-standing strategic research partnership: MARWEN co-develops multiple R&D projects with the ENIAS research group at the University of Jaén, including GEDESI (CDTI, €251,944), SolAgro+ (CDTI/CTA, €188,234, 2023–2025), ALMAfot+ (CTA, €241,940.22, 2024–2026), and inGREEN_H2 (CTA, 2024). MARWEN also co-locates an office at the University's Campus Las Lagunillas in Jaén.
• ENAC — Entidad Nacional de AcreditacióncoreOthersNational accreditation body that accredited GRUPO MARWEN CALSAN S.L. as CAE Energy Savings Certificate Verifier (accreditation 11/VV023) under ISO 17029:2019 and ISO 14065:2021 and Annex III of CGA-ENAC-CSG.
• AENORcoreOthersSpanish standards and certification body that certified MARWEN's ISO 9001 (Quality), ISO 14001 (Environment), ISO 50001 (Energy) management systems and the UNE 216701 Energy Service Provider (PSE) classification (renewed July 2024).
• Universidad de Jaén (campus office and Fundación Universidad de Jaén Empresa)minorStrategic or Co-development PartnerMARWEN is a member of the University of Jaén Business Foundation and co-locates an office on the University campus (Campus Las Lagunillas, Jaén). The partnership supports talent pipelines, training and R&D collaboration with the ENIAS team.
• CEJ — Confederación de Empresarios de JaénminorGTM or Marketing PartnerMARWEN is a member of the Jaén Business Confederation (CEJ) and jointly promotes decarbonization initiatives such as the Jaén Sostenible project (new edition developed in 2025, January 2026 announcement).
• A3E — Asociación de Empresas de Eficiencia EnergéticaminorStrategic or Co-development PartnerMARWEN is a member of A3E, the Spanish Association of Energy Efficiency Companies, providing industry advocacy and networking in the energy efficiency sector.
• ON-TECH-INNOVATIONminorStrategic or Co-development PartnerMARWEN is a member of the ON-TECH-INNOVATION innovation ecosystem cluster.
• PROA — Plataforma 8.20, de Empresarios y Profesionales de JaénminorGTM or Marketing PartnerMember of PROA, a local business and professional platform in Jaén, Spain.
• UIM — Unión Iberoamericana de MunicipalistasminorStrategic or Co-development PartnerMARWEN is a member of the Ibero-American Union of Municipalities, supporting its international municipal-government consulting work.
• Fundación Vicente FerrerminorGTM or Marketing PartnerThrough the "40,000 Brazadas Solidarias" sponsorship, MARWEN supports the Fundación Vicente Ferrer program to build adapted homes for families in Gorantla, India.
• ASPACE JaénminorGTM or Marketing PartnerMARWEN collaborates with ASPACE Jaén, supporting projects benefiting people with cerebral palsy and related disabilities (social-responsibility partnership).
• Fundación Fulgencio MeseguerminorGTM or Marketing PartnerMARWEN collaborates with the Fulgencio Meseguer Foundation to support entrepreneurship, research, and socioeconomic progress.
• WSpace (MARWEN internal Aerospace & Defense division)coreOthersInternal division (not external partner) — emerged from a shared vision at Geolit Science and Technology Park to transform knowledge into innovative aerospace and defense solutions. Develops SAIFFE, THALIA and AGROSPACE projects. Has its own website (wspace.es).

Scale indicators9 records

Recent moves9 records

Expansion highlights7 records

Broad incumbents

• SGS: Global TIC leader headquartered in Switzerland with extensive energy efficiency, environmental, sustainability, and ISO certification services. MARWEN's ENAC-accredited CAE verification and ISO implementation services compete directly with SGS Iberica's energy practice, especially for enterprise clients.
• Applus+: Barcelona-headquartered global Testing, Inspection and Certification (TIC) firm with energy, environmental and ISO certification services. Directly comparable to MARWEN's CAE verification and ISO 50001/14001/9001 certification-adjacent work, but at vastly greater scale (€2B+ revenue, 25,000+ employees).
• Bureau Veritas: France-headquartered global TIC firm offering energy management, sustainability, carbon footprint verification, and ISO certification services. Overlaps with MARWEN on industrial ISO 50001 implementation, GHG verification, and CSRD/sustainability assurance.
• SENER Aeroespacial: Basque-country headquartered engineering group with an aerospace/defense division working on space systems, GEOINT and satellite programs. Comparable to MARWEN's WSpace division for AI/satellite imagery applied to defense and environmental monitoring, though at significantly larger scale.

Direct peers

• Ingeteam: Spanish energy engineering company specializing in photovoltaic inverters, energy storage, grid integration and renewable energy projects. Comparable to MARWEN in industrial photovoltaic self-consumption, BESS integration (ALMAfot+) and Andalusian renewable energy market.
• IDOM: Spanish-headquartered multinational engineering, architecture and consulting firm with strong energy and environment practices. Comparable to MARWEN in providing energy audits, photovoltaic self-consumption engineering, sustainability, and green hydrogen consulting across Europe and Latin America.
• TÜV Rheinland Iberica: German global TIC giant with a strong Iberian presence offering ISO 50001/14001/9001 certification, energy audits, photovoltaic system certification, and carbon footprint verification — direct overlap with MARWEN's energy efficiency, climate change and verification service lines.
• Ayesa: Seville-headquartered Spanish engineering, technology and consulting group with energy, environment and digitalization practices. Comparable to MARWEN as an Andalusian-rooted engineering firm serving utilities, industry and public administration across Iberia and LatAm.
• TÜV SÜD Iberica: German-headquartered TIC firm with Spanish operations providing ISO management systems certification, energy audits, photovoltaic testing, and sustainability assurance. Direct competition in Spain for ISO 50001 implementation and energy services mandates.

Others

• Fundación CIDE (A3E member firms): MARWEN is itself a member of A3E (Asociación de Empresas de Eficiencia Energética), the Spanish trade association of energy efficiency companies whose member firms (e.g., Geolia, Etra, Efficiency One) compete with MARWEN in Spanish ESCO/energy efficiency tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCjUZK597cA3tGpIG2tdatog
• Facebookfacebook.com/somosmarwen
• LinkedInlinkedin.com/company/marwen-grupo
• Instagraminstagram.com/somosmarwen
• Xx.com/grupo_marwen

Compliance19 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries2 records

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 Marwen Ingenieria