Joseph Diemand Sa

What Joseph Diemand Sa does

Joseph Diémand SA is a Swiss sanitary installation contractor headquartered in Forel (Lavaux), Vaud, operating as a wholly-owned subsidiary of the HOLDINOVA group. Founded in 1903, the company delivers sanitary installations, water treatment systems (filtration, softening, desalination, conditioning, neutralization), gas installations (natural gas, LPG, oxygen, acetylene, medical gases), and complementary services (24/7 emergency repair, project study, technical coordination, rainwater harvesting, central vacuum systems) across residential, hotel/hospitality, hospital/EMS, and industrial verticals. Its technical scope spans water and fluid networks, with end-to-end project support from design through execution.

The business runs on a professional-services, project-based revenue model. Customers engage Diémand directly (enterprise field sales) for new construction, renovation, and ongoing maintenance across the Lake Geneva / Suisse romande region. The company combines a 93-employee workforce with a 20-apprentice training pipeline and shares the HOLDINOVA ecosystem (19 sister companies in heating, HVAC, solar, and gas distribution serving 152 communes in Vaud, Valais, and Fribourg) to assemble multi-trade consortia on large institutional projects such as Beau Rivage Palace and Institut Le Rosey. Marquee clients include EPFL, EHL, Beau Rivage Palace, Migros Vaud, Coop Rennaz, Institut Le Rosey, Résidence Alpine Hédonia, and CGN.

Operationally, Diémand combines direct field sales with project referrals within the HOLDINOVA group, supports both private residential clients and large institutional buyers, and positions its century-old brand as the primary differentiator against independent plumbing contractors. No revenue, AI/ML capability, or external funding is disclosed in the source material; the company is a private Swiss corporation with 1M CHF of registered capital.

Name

Joseph Diemand Sa

Legal name

Joseph Diémand SA

Website

https://diemand.ch

Company type

Private

Founded year

1903

Operating status

Operating

Headcount range

51–100 employees

Short description

Joseph Diémand SA is a Swiss sanitary installation contractor, founded 1903, serving residential, hotel, hospital, EMS, and industrial clients across Suisse romande from Forel (Lavaux), as a subsidiary of the HOLDINOVA group.

Ownership category

akta.pro rank

Headquarters

HQ city

Forel

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Sanitary Installation Services: New construction, renovation, and maintenance of sanitary installations for residential, hotel, hospital, EMS and industrial buildings. Revenue is generated through project-based professional services contracts.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels1 record

Core offering

Joseph Diémand SA is a Swiss sanitary installation specialist delivering end-to-end water and fluid network services for residential, hospitality, healthcare (hospitals and EMS), and industrial buildings. Its scope spans new construction, renovation, and complex large-scale projects, complemented by water treatment (filtration, softening, desalination, conditioning, neutralization) and gas installation (natural gas, liquefied gas, medical gases) services, plus 24/7 emergency repair.

Product overview

Joseph Diémand SA is a specialized sanitary installation company with over 100 years of expertise, operating as a subsidiary of the HOLDINOVA group. The company offers a unified suite of installation and services organized into four core service areas: Sanitary Installations (covering residential, hospitality, healthcare, and industrial segments), Water Treatment Services (including filtration, softening, desalination, and wastewater treatment), Gas Installations (natural gas, LPG, oxygen, acetylene, and medical gases), and complementary technical services (maintenance, emergency repair, project planning, and technical coordination). All services are delivered from design through execution, covering new construction, renovation, and ongoing maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Sanitary Installation Services
• Water Treatment Services
• Gas Installation Services
• Maintenance and 24/7 Emergency Repair

Named customers8 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• HOLDINOVAcoreStrategic or Co-development PartnerJoseph Diémand SA is a subsidiary of HOLDINOVA, a major player in energy and building services in Swiss Romandy. The group comprises 19 companies operating in gas, heating, ventilation, sanitary, solar energy, and building project management. HOLDINOVA manages a gas network serving 152 communes in the cantons of Vaud, Valais and Fribourg through subsidiary companies CICG, SGPR, and Cosvegaz. Energiapro handles energy commercialization (natural gas, biogas, solar electricity).

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Losinger Marazzi AG: Major Swiss general contractor and developer with strong Romandy presence. Comparable as a broader incumbent on large institutional construction programs in which Joseph Diémand participates as a sanitary specialty subcontractor.
• Implenia AG: Switzerland's largest construction and real-estate services group, active across Romandy. Comparable as a broader incumbent executing complex building projects that include MEP/sanitary scopes where specialty contractors like Joseph Diémand serve as subcontractors or partners.
• Bouygues Energies & Services Switzerland: Swiss subsidiary of Bouygues Energies & Services, a major multi-technical and energy services provider. Comparable as a broad incumbent delivering facility and energy services — including building water and HVAC — to institutional customers across Switzerland.
• ENGIE Schweiz: Swiss arm of global energy and multi-technical services group. Comparable as a broad incumbent offering overlapping building technical services (HVAC, energy, facility services) to Swiss institutional clients.

Others

• Holdibat SA: Sister HOLDINOVA general contractor for building technical works. Comparable as a project-based building services provider in Romandy that frequently bundles Joseph Diémand's sanitary scope into larger tenders.
• Taxa SA: Sister HOLDINOVA company in heating, often delivering combined sanitary + heating tenders. Like Joseph Diémand, it is a Swiss Romandy specialty contractor serving residential and institutional customers through project-based contracts.
• Agena Energies: Sister HOLDINOVA company focused on solar energy and renewable building solutions. Comparable as a Swiss Romandy energy-and-building specialist adjacent to sanitary/water-treatment services.
• Geberit AG: Swiss-based global leader in sanitary technology and piping systems. Comparable as the dominant upstream product supplier whose sanitary systems Joseph Diémand installs and a key reference point for the technology stack used in Joseph Diémand's projects.
• Brauchli SA: Sister company within the HOLDINOVA group specializing in heating installations for similar Lake Geneva customers. Not a direct competitor; comparable because it shares the same regional B2B building-services model, client base, and group-level joint-bidding (e.g., Beau Rivage Palace, CGN).
• Roos Ventilation: Sister HOLDINOVA subsidiary providing HVAC/ventilation-climatisation services. Comparable as a B2B MEP specialty contractor operating across the same Swiss Romandy institutional client base, often co-bidding with Joseph Diémand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/joseph-diemand-sa

Revenue estimate

Valuation estimate

Number of profiles

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 Joseph Diemand Sa