What Ingphi does

INGPHI SA is a Swiss civil engineering consultancy founded in 2004 and headquartered in Lausanne, specializing in the structural design of bridges, buildings, and infrastructure. The firm treats civil engineering structures (ouvrages d'art) as works combining engineering rigor with architectural sensitivity, offering services across three core domains: bridges, buildings, and infrastructure, supported by specialized practices in facades, geotechnics, and special works. Its technical differentiation rests on advanced numerical simulation capabilities including finite element methods (both linear-elastic and nonlinear), the proprietary Menétrey-Willam constitutive model for triaxial concrete cracking analysis, comprehensive BIM methodology extending into CIM (City Information Model) parametric modeling, and applied expertise in ultra-high performance fiber-reinforced concrete (UHPFRC/UHPCFRC).

The firm operates a professional services revenue model, billing clients on a per-project basis for structural design, expert assessments, damage investigations, and construction supervision. Client segments span public infrastructure owners (Swiss cantons, municipalities, and federal agencies such as OFSPO), architectural firms executing complex contemporary projects (BIG, Amaldi Neder, Kengo Kuma projects including EPFL Artlab), and private developers and institutions requiring expert evaluations. Marketing and business development occur through a multilingual website, participation in project competitions, the Vitrines du Petit-Saint-Jean cultural exhibition space at its Lausanne headquarters, and the INGPHI Press publishing house producing technical monographs on Swiss engineering heritage.

Customer relationships are typically multi-year engagements on signature public infrastructure and architectural projects (CEVA railway stations, Paudèze bridges, Macolin sports hall, Maison des sports Colovray). The firm maintains ongoing R&D collaborations with Swiss higher education institutions and testing laboratories for expert assessments, and uses Dynamo-based BIM-to-CIM pipelines to enable rapid construction cycles (e.g., one complete floor every 10 days on prefabricated projects). With 11-50 employees, INGPHI operates as a niche specialist in French-speaking Switzerland, with privately-held ownership and no disclosed institutional investors, funding rounds, or external capital activity.

Name

Ingphi

Legal name

INGPHI SA

Website

https://ingphi.ch

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

INGPHI SA is a Lausanne-based Swiss civil engineering consultancy (founded 2004) specializing in structural design of bridges, buildings, and infrastructure for public sector clients, architects, and private developers across Switzerland, with proprietary expertise in nonlinear simulation and BIM.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Engineering design services (line design, substation design, civil/structural) (EUADAKAG)

Keywords

• Structural engineering services
• Bridge design
• Building engineering
• Infrastructure consulting
• Civil engineering design

Headquarters

HQ city

Lausanne

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Structural Engineering Consulting Services: Professional engineering services for the design and construction of civil engineering structures including bridges, buildings, and infrastructure. Revenue is generated through consulting fees on project engagements, typically billed on a per-project basis for design, expert assessments, research, and construction supervision.
2. INGPHI Press Publishing: Publishing house generating revenue through the sale of books on engineering structures and construction topics, including La Suisse e(s)t ses ponts by Philippe Menétrey and the 04-14 RETROSPECTIVE book of 18 INGPHI projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

INGPHI SA is a civil structural engineering firm that designs and supervises the construction of bridges, viaducts, buildings, and infrastructure projects across Switzerland. Services cover structural engineering design, expert assessments for damaged or heritage structures, facade engineering, and geotechnical analysis, supported by advanced numerical simulation (finite element methods) and BIM methodology. A subsidiary operation, INGPHI Press, publishes books on Swiss engineering structures and architecture.

Product overview

INGPHI is a civil engineering firm (ingenieurs civils) based in Lausanne, Switzerland, specializing in the design of structural works including bridges, buildings, and infrastructure. The company operates as a unified engineering consultancy rather than a software platform. Its core offerings center on structural engineering design services, supplemented by specialized R&D capabilities in numerical simulations (using finite element methods), BIM methodologies, UHPFRC and fiber-reinforced concrete applications, facade engineering, and geotechnics. The firm also provides technical expertise services for damage assessment and project reviews. A subsidiary operation, INGPHI Press, publishes construction-related books and technical publications.

Differentiator

Problem solved

Functional benefit

Brands

• INGPHI Press: A publishing house dedicated to construction, covering engineering structures such as bridges and tunnels, and buildings where engineers work with architects.

Products and services

• Structural Engineering Design Civil engineering design services for bridges, viaducts, footbridges, buildings, and infrastructure, including new construction, renovation, and seismic reinforcement. Clients include Swiss cantons, municipalities, federal agencies, architectural firms, and private developers.
• Numerical Simulations of Structures Digital simulation service using finite element methods (linear-elastic and nonlinear) to model structural behavior including instability analysis, concrete cracking, contact problems, and soil-structure interaction. Used for safety level determination, seismic load prediction, vibration analysis, and long-term behavior forecasting.
• BIM – Working Methods and Applications BIM methodology service applied to complex geometries, prefabricated construction, and infrastructure projects, covering optimized computer-aided design, data retrieval, prototype fabrication, laboratory testing, off-site production, and implementation planning.
• UHPFRC and Fiber-Reinforced Concrete Applications Specialty engineering service covering UHPFRC and fiber-reinforced concrete applications for structural reinforcement and modern construction techniques, including bridge deck reinforcement using inclined UHPC.
• Facades Engineering Structural engineering service for building facades and envelopes, addressing contemporary architectural challenges in new construction and renovation.
• Geotechnics and Special Works Foundation design and geotechnical engineering services including soil analysis, ground improvement, and special construction techniques for projects in challenging geotechnical environments.
• Expertise Services Technical expert assessments for structural damage evaluation, preliminary project reviews, and pre-project verification using numerical simulation tools, conducted in close collaboration with universities and testing laboratories; supports four-eyes principle checks for building permit authorization and heritage preservation decisions.
• INGPHI Press Publishing A publishing house dedicated to construction engineering, covering bridges, tunnels, and buildings. Titles include 'La Suisse e(s)t ses ponts' by Philippe Menétrey (history of 64 bridges along the Rhône and its tributaries) and the '04-14 RETROSPECTIVE' book of 18 INGPHI projects, sold online and distributed throughout Switzerland.

Quantifiable outcome

• One complete floor constructed every 10 days on the Avenue Châtelaine residential project in Geneva using prefabricated construction enabled by BIM methodology
• +2 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Swiss Higher Education Institutions and Testing LaboratoriescoreStrategic or Co-development PartnerINGPHI collaborates with universities and testing laboratories for expert assessments, ensuring thorough and rigorous analysis. Damage expert assessments are conducted in close collaboration with testing laboratories.
• femme et sia NetworkminorOthersINGPHI partnered with the femme et sia network for the JOM (Journée d'Ouverture des Métiers / Dare to Explore All Professions Day) 2017 event, organizing an engineering workshop to help people discover engineering professions without being limited by traditional clichés.
• Ville en têteminorOthersVille en tête occupied shop windows in central Lausanne during summer 2023 as part of the Vitrines du Petit-Saint-Jean collective showcases, inviting passersby to participate in miniature street-building workshops.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Price & Myers: London-based structural engineering consultancy serving leading architects on complex building and bridge projects. Comparable to INGPHI in boutique scale, starchitect client mix, and focus on craft-led structural engineering.
• Conzett Bronzini Partner AG: Swiss structural engineering consultancy specializing in bridges, footbridges, and complex civil structures, with offices in Chur and Zurich. Directly comparable to INGPHI in scale, niche focus on 'ouvrages d'art', and bridge-design culture.
• WaltGalmarini AG: Zurich-based structural engineering firm with a strong reputation in bridge design, complex buildings, and heritage structures. Closely comparable to INGPHI in technical positioning, BIM methodology, and Swiss public-infrastructure client base.
• Dr. Lüchinger + Meyer Bauingenieure AG: Zurich structural engineering consultancy focused on bridges, high-rise buildings, and innovative construction methods. Comparable in size, technical sophistication, and Swiss infrastructure client mix to INGPHI.
• Ingeni SA: Geneva-based structural engineering firm operating in the same Lake Geneva / French-speaking Switzerland market as INGPHI, with comparable project types including bridges, buildings, and infrastructure. A direct regional peer.
• Bollinger + Grohmann GmbH: Frankfurt/Paris-based structural engineering firm with strong presence in complex geometry, starchitect collaborations, and facade engineering. Comparable to INGPHI in serving leading architects on technically ambitious building projects.

Broad incumbents

• Arup Group: Global engineering consultancy with a long-established structural engineering practice serving landmark buildings, bridges, and infrastructure. Represents a scaled, multinational analogue of INGPHI's structural-engineering-plus-digital-simulation positioning.
• Buro Happold: Global engineering consultancy with strong structural engineering practice serving starchitect clients and complex infrastructure. A scaled-up analogue of INGPHI's positioning, demonstrating the upper bound of where the business model could expand.
• Schlaich Bergermann Partner (SBP): Stuttgart-based structural engineering consultancy with global footprint, specializing in bridges, lightweight structures, and innovative civil engineering. Comparable in technical culture but materially larger than INGPHI, with international reach INGPHI aspires to.
• Basler & Hofmann AG: Large Swiss engineering consultancy (Esslingen/Zurich) offering structural engineering alongside broader infrastructure, environment, and safety services. Operates in INGPHI's segments but at much larger scale with a broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/ingphisa
• LinkedInlinkedin.com/company/ingphi-sa

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 Ingphi