SADEKOSA SA

What SADEKOSA SA does

SADEKOSA SA is a Bilbao-based construction firm specializing in waterproofing, building rehabilitation, and maintenance services. Founded in 1970 (originally as SADEKO and constituted as SADEKOSA in 1982), the company has accumulated over 40 years of operational experience in the Spanish market, primarily in the Basque Country. Its technical scope spans synthetic membranes, asphalt membranes, polyurethane systems, and EPDM, supported by official contractor classifications including the State Contractor Registry, Basque Government Registry, BIEBA, and PREMIE. The firm offers warranties of up to 25 years on waterproofing work, signaling institutional-grade quality assurance for its clients.

The company's core business is project-based construction services, with case studies spanning residential communities, commercial facilities, schools, government buildings, and wineries. Recent strategic activity indicates an evolution from pure contractor toward digitally enabled specialist: SADEKOSA is participating in three Hazitek R&D consortia — DIPass (digital building passports), S3SYS (IoT-based digital twins), and GEMINECO (intelligent maintenance management) — alongside technology partners Semantic Systems, Urbelan, and TECNALIA. The General Manager, Jose Luis Fuente Ruiz, was elected President of ASCOBI-BIEBA in June 2024, anchoring the firm at the center of Basque regional construction industry representation.

SADEKOSA's customer base spans public-sector tenders (governments, education), private enterprise (wineries, banks), and residential communities. Revenue mechanics are project-based with subcontracted labor likely supplementing the small core team. The firm has expanded its geographic footprint across northern Spain, including Bizkaia, Gipuzkoa, Álava, Navarra, Cantabria, La Rioja, Burgos, Castilla-León, Asturias, and Galicia. With 6 listed employees and no disclosed revenue, the firm operates as a specialist boutique contractor with a niche regulatory position and growing technology partnership footprint.

Name

SADEKOSA SA

Legal name

SADEKOSA S.A.

Website

https://sadekosa.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

1–10 employees

Short description

SADEKOSA SA is a Bilbao-based construction firm specializing in waterproofing, building rehabilitation, and maintenance, with over 40 years of experience serving residential communities, wineries, government, and educational institutions across northern Spain.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Commercial and Institutional Building Construction (236220), Drywall and Insulation Contractors (23831)

SIC

Asphalt Paving & Roofing Materials (2950), Adhesives & Sealants (2891)

akta.pro primary industry

Building Envelope & Weatherproofing (Roofing/Waterproofing/Gutters) (IMAIABAG)

akta.pro secondary industries

Concrete Repair, Sealing & Waterproofing (Coatings/Membranes) (IMAIAKAK), Exterior Insulation & Weatherproofing (House Wrap, Air/Water Barriers) (HSAPAKAK)

Keywords

• Building waterproofing services
• Building rehabilitation services
• Preventive building maintenance
• Facade rehabilitation services
• Roof membrane installation

Headquarters

HQ city

Bilbao

HQ country

Spain

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Rehabilitation Services: Project-based revenue from waterproofing installations, building rehabilitation (facades, roofs, urbanizations), and integral building maintenance. Revenue is earned through one-time project contracts with property owner communities, industrial clients, and public institutions.
2. Product Sales (Waterproofing Systems): Commercialization and installation of waterproofing systems and sealing products, including membrane materials (asphalt, PVC, TPO, EPDM) and liquid membranes.
3. Subsidy Management Services: Subsidy management department handles all procedures for obtaining public aid and grants for building projects, providing an additional service revenue stream.
4. Financing Arrangement Services: Collaboration with financial entities to provide financing options for clients, facilitating larger project engagements.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

SADEKOSA SA commercializes and installs building waterproofing systems (asphalt sheets, PVC, TPO, EPDM, and liquid membranes) for roofs, terraces, and urbanizations, with guarantees of up to 25 years. The company also delivers integral building rehabilitation covering ventilated facades, SATE facades, roofs, and urbanizations, and provides preventive and corrective maintenance services for residential and industrial buildings. Supporting offerings include technical consulting, financing arrangement with banking partners, and subsidy/grant management for clients.

Product overview

SADEKOSA SA is a construction company offering three core service lines: (1) Impermeabilización - commercialization and installation of waterproofing systems for roofs, terraces, and urbanizations using asphalt sheets, PVC, TPO, EPDM, and liquid membranes, with up to 25-year guarantees; (2) Rehabilitación de Edificios - comprehensive building rehabilitation including ventilated facades, SATE systems, roofs, and urbanizations focused on aesthetics, energy efficiency, and ecological impact; and (3) Mantenimientos - preventive and corrective building maintenance services. The company also provides technical consulting, financing coordination, and subsidy management as supporting services. Founded in 1970 as SADEKO and constituted as SADEKOSA in 1982, the company operates in the Basque Country and Rioja regions.

Differentiator

Problem solved

Functional benefit

Products and services

• Impermeabilización (Waterproofing Systems) Specialized commercialization and installation of waterproofing systems for roofs, terraces, and urbanizations. Technical teams work with asphalt sheets, PVC, TPO, EPDM, and liquid membranes, with guarantees of up to 25 years on waterproofing work. Targeted at residential property owner communities, industrial buildings, and public sector clients.
• Rehabilitación de Edificios (Building Rehabilitation)
• Mantenimientos (Building Maintenance)
• Technical Services
• Financing Services
• Subsidy Management Services

Quantifiable outcome

• 25-year warranty on waterproofing work
• +2 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core, minor and supporting.

• ASCOBI (Asociación de Empresas de Impermeabilización y Tratamiento de Fachadas de Bizkaia)coreOthers · 1 June 2024Sadekosa is a member of ASCOBI, the association of waterproofing and facade treatment companies in Bizkaia. The company's general manager, Jose Luis Fuente Ruiz, was elected President of ASCOBI in June 2024, demonstrating leadership within the industry association.
• CAF Bizkaia (Colegio de Administradores de Fincas de Bizkaia)minorGTM or Marketing Partner · 1 December 2021Sadekosa signed a sponsorship agreement with the College of Property Administrators of Bizkaia, joining their family of sponsors. This partnership provides visibility among the association's property administrator members who represent property owner communities — a key target segment for Sadekosa.
• Semantic SystemscoreStrategic or Co-development PartnerSemantic Systems, a technology company developing advanced software and disruptive digitization solutions in industrial settings, is collaborating with Sadekosa and Urbelan on the DIPass project (Smart Process Configuration for Digital Building Passport), a pioneering Construction 4.0 initiative. Semantic Systems provides the AI and software capabilities for the digital building passport framework.
• UrbelancoreStrategic or Co-development PartnerUrbelan, a leading construction company in the Basque Country dedicated to building execution in the public and private sector, collaborates with Sadekosa and Semantic Systems on the DIPass digital construction project. Urbelan provides the construction domain expertise and use cases for developing the digital building passport system.
• TECNALIAsupportingTechnology or IntegrationTECNALIA participates as an agent of the RVCTI (Basque Research and Technology Network) in the DIPass project, contributing research and technology capabilities to the digital construction initiative led by Sadekosa, Semantic Systems, and Urbelan.
• Hazitek (R&D Aid Program)coreOthersSadekosa participates in the Hazitek R&D aid program, a Basque government support initiative for business R&D, through three projects: DIPass (digital building passport), S3SYS (IoT/BIM digital twins for scaffolding safety), and GEMINECO (intelligent maintenance management platform).

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• ACS / Dragados: Large Spanish construction group whose Dragados unit executes building, civil, and rehabilitation works nationwide, including waterproofing-adjacent envelope scopes that overlap with Sadekosa.
• OHLA (formerly OHL): International Spanish construction group with significant activity in nonresidential building and rehabilitation across Spain, competing for institutional and public tenders.
• Ferrovial Construcción: Major Spanish construction division of Ferrovial with broad infrastructure and building capabilities, including rehabilitation; competes for the same institutional and public-sector tenders in Spain.
• Acciona Construcción: Major Spanish construction division with broad nonresidential and infrastructure capabilities, regularly participating in the same public tender pool as Sadekosa in northern Spain.

Regional players

• Construcciones Amenabar: Established construction and building-rehabilitation firm in the Basque Country, operating on residential, commercial, and public-sector projects comparable to Sadekosa's core service lines.
• Grupo Balzola: Basque construction group active in public works, civil engineering, and building rehabilitation, operating in the same regional market and customer base as Sadekosa.
• Construcciones Murias: Northern-Spain-based general construction and rehabilitation contractor with comparable public- and private-sector project work in residential and institutional building rehabilitation.

Direct peers

• Urbelan: Basque Country construction company executing public and private building works; co-develops the DIPass digital-building-passport project with Sadekosa and is a direct peer in building rehabilitation and construction in the same regional market.
• Construcciones San José: Spanish listed construction group active in nonresidential building, rehabilitation, and maintenance, with comparable project mix and customers (public, institutional, residential).

Others

• Sika Spain: Leading manufacturer of waterproofing membranes, sealants, and facade systems; an enabling supplier to the Spanish waterproofing market rather than a direct contracting competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sadekosa-sa

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 SADEKOSA SA