These civil engineering companies in Spain include a mix of large groups and mid-sized firms. They specialize in infrastructure, urban services, and environmental projects. SACYR is a global group focused on infrastructure and industrial projects. INECO is an engineering and consulting firm in sustainable mobility. CEMOSA offers specialized engineering and quality control services in construction. Grupo Azvi is a diversified group focused on infrastructure and railway transportation. TYLin designs infrastructure solutions globally, and OSSA specializes in underground projects. These companies provide services from project planning to maintenance. Most of them are based in Madrid and Barcelona.
The companies listed here cover a broad range of civil engineering activities, from traditional infrastructure development to specialized areas like sustainable mobility and underground construction. The companies were founded across several decades, with Grupo Azvi established in 1846 and others like INECO (1968) and Prointec (1970) being more recent. This indicates a long-standing industry in Spain with continuous development.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 8,854 | ||||
| 2 | 5,743 | ||||
| 3 | 1,092 | ||||
| 4 |
Grupo Azvigrupoazvi.com
An innovative, diversified, international group focused on infrastructure, urban services, environment, and railway transportation with a century of experience |
857 | |||
| 5 |
TPF INGENIERÍAtpfingenieria.com
Leading engineering firm specializing in transport, environment, water, building, and urban development with full lifecycle project management expertise. |
764 | |||
| 6 |
WSP en Españawsp.com
A leading engineering services company in Spain offering innovative design solutions and global expertise in infrastructure, construction, concessions, and renewable energy projects |
634 | |||
| 7 |
TYLin in Europe + LATAMtylin.com
Designs infrastructure solutions globally, connecting communities, enhancing designs, providing resilient systems, and offering sustainable solutions to client challenges. |
582 | |||
| 8 |
Prointecprointec.es
International leader in engineering, architecture, and consulting for infrastructure, urban planning, and environmental projects Providing cost-effective solutions from planning to maintenance |
527 | |||
| 9 | 490 | ||||
| 10 |
OSSAossaint.com
Specializing in underground projects, including civil engineering tunnels, hydro power plants, and mining infrastructure for over 70 years with international recognition for quality and efficiency |
479 | |||
| 11 |
Copcisacopcisa.com
A construction company specializing in civil engineering, building, and services with a focus on quality, innovation, and customer satisfaction since 1965 |
465 | |||
| 12 | 
soldador tig (wig)
Specializing in TIG welding, this civil engineering entity is located in Ocaña, Spain, offering services at C/Mazacote No 13 |
416 | |||
| 13 |
Cintra, a Ferrovial companyferrovial.com
A global leader in private-sector transportation infrastructure, providing efficient solutions for highway development projects across four continents with over 50 years of experience |
399 | |||
| 14 |
IDP Ingeniería, Medio ambiente y Arquitecturaidp.es
Provides global technical services in engineering, environment, architecture, and IT, using BIM for project design, organization, and management. |
397 | |||
| 15 | 333 | ||||
| 16 |
CEDEX - Centro de Estudios y Experimentación de Obras Públicascedex.es
A public organization specializing in civil engineering, construction, and environmental studies, providing high-level technical support, research, and technological development for public and private sectors |
328 | |||
| 17 |
AFJ GLOBAL. Consultoría, Ingeniería y Prevencion de Riesgosafjglobal.com
A consulting firm specializing in labor risk prevention, engineering, and training, with a focus on international projects in Spain, Portugal, Chile, Mexico, and Peru |
323 | |||
| 18 |
SYSTRA Ardanuy Ingeniería S.A.U.ardanuy.com
A global engineering firm specializing in railway, electrical, building, and motorway projects with a focus on international contracts and R&D investments |
323 | |||
| 19 |
Quadrante Meta Engineeringmetaengineering.com
Global provider of consulting and engineering services specializing in Transport Infrastructure Offers customized services throughout project lifecycle on 5 continents |
312 | |||
| 20 |
ESTEYCOesteyco.com
A global provider of civil engineering and architecture services, specializing in infrastructure projects for public agencies, financial groups, builders, and engineering firms |
301 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 21 |
UG21 Engineeringug21.com
UG21 is an engineering company focused on building infrastructure in Spain, Colombia, Peru, Mexico, Costa Rica, and Panama with a commitment to progress and sustainability |
298 | |||
| 22 |
APIA XXIwsp.com
APIA XXI is a global engineering company specializing in infrastructure, hydraulic works, environmental projects, buildings, urban planning, energy, and industry With offices in Spain, Latin America, the US, and the Middle East With over 400 professionals, they offer comprehensive engineering and architectural solutions |
255 | |||
| 23 |
Grupo Elsamexgrupoelsamex.com
A global infrastructure services company specializing in consulting, engineering, maintenance and construction with a focus on waterworks and international presence in Spain, Latin America, and beyond |
255 | |||
| 24 |
Colegio de Ingenieros Técnicos de Obras Públicas e Ingenieros Civilescitop-link-tree.my.canva.site
Professional organization representing and serving civil engineers with the goals of regulating the profession, providing exclusive representation, and defending members' professional interests |
225 | |||
| 25 |
Vielca Ingenieros S.A.vielca.com
Specializing in technical engineering services, our areas of expertise include environmental projects, hydraulic works, urban planning, architecture, and telecommunications installations, among others |
215 | |||
| 26 |
CPS Infrastructures Mobility and Environment S.L.cps.es
A Spanish engineering consultancy specializing in civil engineering, transport engineering, architecture, and installations with branches in multiple countries |
211 | |||
| 27 | 203 | ||||
| 28 |
Euroestudios, S.L.brigittines.be
Specialized consultancy in civil engineering and construction, with over four decades of experience in planning, feasibility studies, project management, and infrastructure development internationally |
179 | |||
| 29 |
GRUPO VIARIUMviariumgroup.com
The group offers engineering consulting services for buildings and civil works, as well as technological development for smart city solutions and international expansion |
173 | |||
| 30 |
PROES Consultoresproes.es
An independent, multidisciplinary, international engineering and architecture consulting firm with 40 years of experience specializing in transportation and energy projects and services |
172 | |||
| 31 |
fhecorfhecor.com
Specialized structural engineering consulting firm providing design, project management, technical assistance, and maintenance engineering for diverse structures and materials. |
172 | |||
| 32 |
INYPSA INFRASTRUCTURESairtificial.com
A leading engineering and consulting firm established in 1970, with expertise in providing efficient, cost-effective, and sustainable infrastructure and public services globally |
169 | |||
| 33 |
VALLADARES ingeniería S.L.i-valladares.com
Specializing in global engineering and sustainable buildings, we offer international project management, engineering, and consultancy services including BIM, MEP, commissioning, and green building certifications |
166 | |||
| 34 |
Antea Group España y Latinoaméricaanteagroup.com
A pioneering consulting firm in Spain specializing in engineering, construction, urban planning, and environmental projects, offering comprehensive services with a focus on innovation and quality control |
149 | |||
| 35 |
Dicon Constructora Desarrolladoradiconsrl.com.ar
Specializing in civil and industrial projects since 1992, constructing industrial plants and distribution centers with expertise in "Post-Tensioned Floors" technology for seamless surfaces A leading construction company in Argentina |
146 | |||
| 36 |
HEMAG a TSG Group Companytsg-solutions.com
An experienced group specializing in energy, engineering, electric infrastructure, and healthcare services, known for high-quality solutions and strong communication with clients and employees |
103 | |||
| 37 |
ABM SERVEIS D’ENGINYERIA I CONSULTING S.L.abm.cat
Engineering consulting specializing in hydraulic, civil, and urban projects with expertise in water management and climate adaptation solutions. |
103 | |||
| 38 |
Arsinger SLarsinger.com
Engineering and architecture firm specializing in advanced projects covering planning, design, construction, and maintenance of industrial facilities internationally Focus on customization, value, and creativity |
26 | |||
| 39 |
stm - Ingeniería Aplicadastm-aplicada.com
Engineering and industrial control company providing customized solutions for specific needs, focusing on growth, knowledge, experience, flexibility, and sustainability for a better future |
19 | |||
| 40 |
INASIC Ingenieríainasicingenieria.es
This company specializes in civil, industrial, and environmental engineering services |
4 | |||
| 41 |
UAV Galicia Ingeniería Técnica SLuavgalicia.com
Specializes in engineering and audiovisual solutions utilizing RPAS/UAVs/drones, photogrammetry, and lidar for technical services, consulting, specialized training tailored to clients' needs |
3 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.
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