Calter Ingenieria

What Calter Ingenieria does

Calter Ingenieria is a privately-held Spanish structural and civil engineering consultancy founded in 1998 and headquartered in Madrid, with a secondary office in Florianópolis, Brazil through its Calter Brasil subsidiary. The firm delivers structural engineering services across building, infrastructure, and energy projects, including flagship engagements such as the Torres Colón rehabilitation with Mutua Madrileña and the Erandio-Barakaldo bridge with German partner SBP. Its four stated service pillars are structural engineering, digital transformation (BIM), applied AI, and sustainability consulting, supplemented by the official SOFiSTiK distribution rights for Spain, which add a software channel revenue stream on top of consulting fees.

The company's technical platform is built around long-standing BIM-based digital delivery (15+ years), proprietary assets such as the Phylem modular wooden structure system, and toolchain partnerships with structural analysis software vendors. Calter generates revenue primarily through project-based engineering consulting fees paid by enterprise and public-sector clients in healthcare (Quirón Salud, Ruber Internacional, Hospital Fundación Jiménez Díaz), energy (Alicança Energia, 2W Energia), insurance/real estate (Mutua Madrileña), and public infrastructure (Diputación de Bizkaia). In 2025 the firm extended its commercial model beyond consulting by launching Quick Guides to Eurocode and the Spanish Structural Code as published reference products, signaling a move toward scalable, lower-marginal-cost revenue lines alongside its traditional professional services work.

Calter employs between 11 and 50 people and operates as a Spanish S.L. The business is led by Juan Carlos Arroyo, who concurrently serves as Dean at Universidad Nebrija, anchoring the firm's academic credibility and recruitment pipeline. The firm has received two Premio Caminos awards, the highest professional recognition of the Spanish civil engineering profession.

Name

Calter Ingenieria

Legal name

Calter Ingeniería S.L.

Website

https://calter.es

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

11–50 employees

Short description

Calter Ingenieria is a civil engineering company that specializes in the design and construction of structures and civil works.

Ownership category

akta.pro rank

Headquarters

HQ city

Madrid

HQ country

Spain

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Engineering Consultancy Services: Professional engineering consultancy services including structural engineering design, rehabilitation projects, civil engineering works, and building construction projects. Revenue is generated through project-based consulting engagements with industrial clients, developers, and enterprise customers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Calter Ingenieria is a Spanish structural engineering consultancy that designs structures for buildings, civil works, rehabilitation, and industrial projects while also providing BIM implementation, applied AI solutions, and sustainability/carbon footprint consulting. The company acts as the official SOFiSTiK distributor in Spain, offering finite element analysis software alongside training, implementation consulting, and technical support. Its projects span Spain, Brazil, and other international markets.

Product overview

Calter Ingenieria is a comprehensive building consultancy providing structural engineering, digital transformation, applied AI, and sustainability services. The company operates as an official SOFiSTiK distributor in Spain, offering finite element analysis software alongside implementation support. Their core offering combines traditional structural engineering expertise with modern BIM methodologies and AI-powered tools, delivering services from initial project diagnosis through implementation in production environments. The portfolio includes specialized services for building, civil engineering, rehabilitation, and industrial projects, supported by digital transformation capabilities and environmental sustainability consulting.

Differentiator

Problem solved

Functional benefit

Brands

• SOFiSTiK Spain: Official SOFiSTiK distributor in Spain, providing finite element analysis software for bridge design and complex structures, along with training, implementation consulting, and technical support.

Products and services

• Sustainability Consulting (Sostenibilidad) Environmental efficiency-focused structural design services including life cycle analysis (LCA), carbon footprint calculation, low-carbon material specification, and LEED/BREEAM/VERDE certification support. Also includes Passivhaus support.
• Applied AI Solutions (IA Aplicada) Artificial intelligence solutions for construction, engineering, and BIM processes. Includes process automation, AI assistant development, generative AI optimization, and data analysis for productivity improvement.
• Structural Engineering Design Services (Ingeniería Estructural) Structural engineering design services for buildings, civil works, rehabilitation projects, and industrial applications. Targets enterprise clients including industrial companies, developers, architecture firms, healthcare operators, and government entities. Backed by 25+ years of experience.
• Digital Transformation Consulting (Transformación Digital) BIM implementation, digital workflow transition, and AI integration services for architecture and engineering firms. Includes process audits, roadmap definition, collaborative environment setup, and team training, with 15+ years of BIM methodology experience.
• SOFiSTiK Software Distribution in Spain Official distribution of SOFiSTiK finite element analysis software in Spain. Includes software licenses, in-person and online training, implementation consulting, analytical model development, reinforcement implementation, generating plans from models, and specialized technical support. Specialized modules include Bridge Design, Building Design, Steel Design, Geotechnics/Tunneling, Rhinoceros Interface, and Analysis + Design for Revit.

Quantifiable outcome

• Awarded Premio Caminos 2023 for Best Engineering Project by a Pyme for Torres Colón rehabilitation
• +3 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability6 records

Feature5 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• SBP (Schlaich Bergermann Partner)coreStrategic or Co-development Partner · 1 January 2022German engineering firm and reference in movable bridge design. SBP (Schlaich Bergermann Partner), led by Mike Schlaich, serves as the design partner for the movable pedestrian bridge between Erandio and Barakaldo. Calter works alongside SBP on this landmark 26 million euro infrastructure project, combining SBP's world-leading expertise in bridge structures with Calter's local engineering capabilities.
• NEOSminorStrategic or Co-development Partner · 1 January 2022Port and maritime engineering company collaborating with Calter on offshore wind energy projects and the movable bridge between Erandio and Barakaldo. NEOS brings specialized maritime and port engineering expertise that complements Calter's structural engineering capabilities for coastal and marine infrastructure.
• Enero ArquitecturacoreStrategic or Co-development PartnerLeading architecture firm specializing in hospital and healthcare projects. Calter has an ongoing collaboration with Enero Arquitectura providing structural engineering for hospital projects including Hospital Quirón Salud Córdoba, Ruber Internacional Centro Médico Masó, and Hospital Universitario Fundación Jiménez Díaz.
• Luis vidal+ arquitectoscoreStrategic or Co-development PartnerArchitecture firm collaborating on the Torres Colón rehabilitation project. Calter worked with Luis Vidal + Arquitectos for 8 years on the structural rehabilitation and construction direction of the iconic Torres Colón building for Mutua Madrileña.
• MADC (Madrid Architecture and Design Studio)minorStrategic or Co-development PartnerArchitecture studio responsible for the design of Castellana 19 rehabilitation and the Biblioteca de los Mil Soles in Villaverde. Calter provides structural engineering for these projects, with MADC providing architectural vision focused on landscape, social, and environmental challenges.
• IECA (Instituto Español del Cemento y sus Aplicaciones)coreStrategic or Co-development PartnerSpanish Institute of Cement and its Applications. Calter collaborated with IECA to develop the Quick Guide to the Structural Code for Concrete Structures. Juan Carlos Arroyo (Calter President) and Charo Martínez Lebrusant (IECA) co-authored the guide, which serves as a 20-page practical reference for structural designers, project managers, quality supervisors, and students.
• SOFiSTiKcoreTechnology or IntegrationOfficial SOFiSTiK distributor in Spain. SOFiSTiK is a leading finite element calculation and analysis software developed by civil engineers for civil engineers. Calter provides not only software licenses but also comprehensive support including training, implementation consulting, analytical model development, reinforcement implementation, generating plans from models, and specialized technical support.
• Universidad NebrijacoreStrategic or Co-development PartnerJuan Carlos Arroyo, President of Calter, serves as Dean of the Polytechnic School at Universidad Nebrija. The company collaborates with the university on academic activities, presentations, and industry events. Calter organized an exhibition on calculation rulers at UNED within its 50th anniversary activities.
• Ruiz-Larrea arquitectosminorImplementation/ SI/ Consulting PartnerArchitecture firm leading the Paseo de la Castellana 19 rehabilitation project. Calter provides structural engineering and construction direction for converting this 19th century, 6,300 m² palace (formerly CNMV headquarters) into one of Madrid's most energy-efficient office buildings targeting Passivhaus and LEED certifications.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Arup: Global engineering consultancy with major presence in structural and civil engineering across Spain. Comparable in offering breadth (structural, sustainability, digital) but operates at vastly larger scale than Calter and competes for similar enterprise and public-sector engagements.
• FCC Construcción: Large Spanish construction and infrastructure group with internal engineering capabilities. Adjacent rather than directly comparable — competes for some of the same public-sector megaprojects where Calter provides structural design as a sub-consultant.
• OHL: Spanish construction and infrastructure group with internal engineering. Indirect competitor for major project commissions where Calter acts as structural sub-consultant.

Direct peers

• TYPSA: Major Spanish engineering consultancy offering structural, civil, and infrastructure design. Directly comparable to Calter in market (Spain), service mix (structural engineering, BIM, project oversight), and client base (developers, government, energy).
• IDOM: Spanish-headquartered multinational engineering consultancy with structural, infrastructure, and energy practices. Closely comparable to Calter across buildings, civil works, renewables, and BIM-led digital delivery, but at materially larger scale.
• FHECOR: Madrid-based specialist structural engineering consultancy active in bridges, buildings and rehabilitation. Directly comparable niche positioning to Calter, and is itself a Calter/SOFiSTiK customer.
• SBP (Schlaich Bergermann Partner): German specialist in bridge and lightweight structures engineering. Directly comparable for complex bridge and special-structure work; already collaborating with Calter as design partner on the Erandio movable pedestrian bridge.
• Ardanuy: Spanish engineering consultancy active in transport, structures and BIM. Overlaps with Calter on civil engineering, structural design, and digital transformation work for public-sector clients.
• IDEAM: Madrid-based engineering consultancy providing structural and infrastructure design. Comparable in size band and Spanish-market focus to Calter, and is itself a SOFiSTiK customer.

Others

• Luis Vidal + Arquitectos: Madrid-based architecture firm working on Torres Colón rehabilitation alongside Calter. Comparable ecosystem participant (long-standing architecture partner) rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UC8LqGkq73KQKPn2urNJC5-w
• Facebookfacebook.com/calterstruct
• LinkedInlinkedin.com/company/calter-ingenier-a
• Instagraminstagram.com/calter_ingenieria

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 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 Calter Ingenieria