Piasio

What Piasio does

Piasio SA is a Geneva-region civil engineering contractor headquartered in Bardonnex, Switzerland, operating continuously since 1947. The company delivers a full-stack portfolio of underground and surface civil engineering services including terrassement (earthwork and excavation), pipelines and underground networks, asphalt/bituminous paving, exterior development and landscaping, demolition and curage, material recovery and recycling, soil remediation, special works (piling, shoring), trenchless technology (directional drilling, pipe bursting), concrete drilling and sawing, vacuum excavator and micro grader rental, asbestos removal and decontamination, and a 24/7 emergency pipeline intervention service. Service delivery is supported by a modern, diversified fleet of 65 excavators (1.5 to 60 tons), 36 dumpers, 32 vans, 25 compressors, 13 trucks, plus specialized trenchless, paving, and crushing equipment, and a workforce of 300+ employees, the majority deployed on construction sites.

The company's go-to-market is sales-led B2B, targeting Swiss municipal governments (communes), private construction companies, infrastructure operators, and financial-institution real estate projects in the Geneva region. Customer references include communes of Collonge-Bellerive, Meyrin, Grand-Saconnex, Bernex, Cologny, and Chêne-Bougeries, as well as Servette Football Club 1890, UBS Fund Management, Edmond de Rothschild, Swiss Life Asset Management, and Compagnie du chemin de fer Nyon-St-Cergue-Morez. Revenue is generated through project-based contracts quoted per scope; no pricing or recurring-revenue data is publicly disclosed.

Piasio has been a wholly-owned subsidiary of the Colas Group since at least 2017, when HTP (specializing in earthworks, demolition, and special works) was integrated into the company, consolidating capabilities under a single operating entity. The company holds ISO 9001, ISO 14001, and ISO 45001 certifications, the Label Eco-Responsable, and Swiss professional training credentials, which support positioning in regulated public-sector tenders. Geographic scope remains confined to the Geneva region, with no disclosed expansion beyond Switzerland.

Name

Piasio

Legal name

PIASIO SA

Website

https://piasio.ch

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

11–50 employees

Short description

Piasio SA is a Geneva-region civil engineering contractor operating since 1947, providing earthworks, underground pipelines, asphalt paving, demolition, trenchless technology, and 24/7 emergency services to Swiss municipalities, private developers, and financial institutions. A wholly-owned subsidiary of the Colas Group.

Ownership category

akta.pro rank

Product category

Civil Engineering Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Water and Sewer Line and Related Structures Construction (237110)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Road & Tunnel Operations/Construction Interfaces (Tolling Infrastructure, Ventilation/Fire-Life-Safety Civil Works) (IMAFAEAL)

akta.pro secondary industries

Tunnel Construction (Road, Rail, Utility) (IMAFAEAC), Tunneling & Underground Geotechnics (Ground Treatment, Support, NATM/SEM Interfaces) (IMAFAOAJ), Tunnels & Underground Rail Civil Construction (IMAFAFAE)

Keywords

• Civil engineering services
• Earthwork excavation services
• Underground pipeline construction
• Asphalt paving services
• Demolition site preparation

Headquarters

HQ city

Barbonne

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Civil Engineering Project Services: Project-based civil engineering construction services including terrassement (earthwork), canalisations (pipelines), enrobés bitumineux (asphalt), démolition (demolition), and aménagements extérieurs (exterior development)

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Piasio provides civil engineering construction products, processes, and services in the Geneva region of Switzerland. The company delivers comprehensive in-house services across underground works (pipelines, canalizations, networks), surface works (earthwork/excavation, asphalt paving, exterior developments/landscaping), demolition and site preparation, material recovery and recycling, soil remediation, special works (piling, shoring), trenchless technology, and 24/7 emergency response for municipal governments, private construction companies, financial institutions, and infrastructure operators.

Product overview

Piasio is a Swiss civil engineering company (Piasio-HTP) operating since 1947 in the Geneva region, providing comprehensive civil engineering services. The company operates as a unified service provider rather than a platform-plus-modules architecture. The service portfolio encompasses earthwork/excavation, underground pipeline and network installation, asphalt paving, exterior developments and landscaping, demolition and curage, material recovery and recycling, soil remediation, waste management and land improvement, special works (piling, shoring), trenchless works (directional drilling, pipe bursting), concrete drilling and sawing, equipment rental (vacuum excavators, micro graders), and 24/7 emergency response services. HTP (acquired in 2017) specializes in earthwork, demolition and special works, complementing Piasio's civil engineering capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Terrassement (Earthwork/Excavation) Excavation, earth movement, transport, evacuation and backfilling operations for civil engineering projects in the Geneva region. Service for municipalities, private construction companies, and infrastructure operators requiring site preparation.
• Conduites, Canalisations & Réseaux sous-terrain (Underground Pipelines, Canalizations & Networks) Sanitation and installation of all types of underground pipelines and networks, including sewer rehabilitation and private connection compliance, for municipalities, infrastructure operators, and private developers.
• Enrobés bitumineux (Asphalt/Bituminous Pavements) Construction, modification and development of all types of road traffic lanes with bituminous pavements for municipalities and private clients in the Geneva region.
• Aménagements extérieurs (Exterior Developments/Landscaping) Development of public or private outdoor spaces including paving, tiling, all types of surfaces, and sports and play areas for municipalities, private developers, and sports organizations.
• Démolition et curage (Demolition and Stripping) Demolition of all types of construction from buildings to villas and art structures, including curage (stripping out), for private developers, financial institutions, and infrastructure operators.
• Valorisation de matériaux (Material Recovery/Recycling) Recovery and recycling of construction site materials, on-site crushing, recycling, screening and stabilization with hydraulic binders. Supports Piasio's own civil engineering works and serves external clients needing material valorization.
• Dépollution (Soil Remediation) Administrative procedures, management and sorting of polluted materials, optimization of disposal channels, and protection concepts for collaborators and environment for contaminated site projects.
• Gestion des déchets et amélioration foncière de terrains agricoles (Waste Management and Agricultural Land Improvement) Valuation of soils and management of excavation debris disposal, including management of polluted debris, supporting waste management and agricultural land improvement projects.
• Travaux spéciaux (Special Works) Project sizing, pile drilling up to 600mm at 10m depth, and shoring between supports using prefabricated concrete slab techniques for complex civil engineering projects.
• Travaux sans tranchée (Trenchless Works) Horizontal directional drilling, pipe bursting (cracking/eclatement de conduites), and missile boring for underground installation without excavation, minimizing surface disruption for utilities and infrastructure operators.
• Forage et sciage de béton (Concrete Drilling and Sawing) Controlled demolition through concrete sawing and drilling services for renovation,改造, and structural modification projects.
• Location d'aspiratrice excavatrice (Vacuum Excavator Rental) Rental of vacuum excavator equipment for cleaning and evacuation of materials in confined spaces without risk of damaging existing underground services.
• Location de micro niveleuse (Micro Grader Rental) Rental of micro grader equipment for precision grading of fine materials up to 3 millimeters, road surface grading, small and medium surfaces, parking lots, and sports facilities.
• Service d'intervention 24/7 (24/7 Emergency Response Service) Round-the-clock emergency interventions on all types of pipelines and networks, available 24 hours a day, 7 days a week for municipalities, infrastructure operators, and private clients.
• Désamiantage et dépollution des bâtiments (Asbestos Removal and Building Decontamination) Complete asbestos decontamination process including diagnosis, emergency intervention, pre-demolition stripping, and deconstruction for building renovation and demolition projects.

Quantifiable outcome

• 300+ employees with majority deployed on construction sites
• +1 more outcomes

Named customers7 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

Feature3 records

Partnerships

One partnership is on record.

• Colas Group (Colas Suisse DG SA)coreOthers · 1 January 2017Piasio is part of the Colas Group, with Colas Suisse DG SA (Route de Berne 20, CH-1010 Lausanne) identified as the data controller for the Group's Swiss operations. In 2017, HTP specialized in terrassement, demolition and special works was integrated into Piasio, expanding its service capabilities.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@piasio-htp203

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Piasio