TECSA

What TECSA does

TECSA – Techniques Energétiques et Consulting SA is a privately held Swiss engineering consultancy (bureau d'ingénieurs) headquartered in Conthey, canton of Valais. Founded in February 1998 by Christian Besse, Guy Jacquemet, and Jean-Pierre Mury, the firm delivers specialized CVS engineering services — chauffage (heating), ventilation-climatisation, sanitaire (sanitary), and énergie (energy) — for buildings and industrial sites across the Valais canton. The service catalog spans the full project lifecycle, from preliminary studies and technical-economic advisory through design (with computer-based hydraulic and aerodynamic calculations), execution plans, supplier negotiation, site supervision, and final handover. Distinctive technical competencies include renewable-energy heating systems (heat pumps, geothermal, wood-pellet/wood-chip boilers, solar thermal/PV, district heating), water treatment (softening, electro-physical tubes, pool water, rainwater harvesting), and sprinkler installations. Authorized to issue CECB / CECB+ certificates and Minergie A/P labels, TECSA combines regulated certification authority with practical building-systems engineering.

The firm operates a vertical-specialization model across six end-markets: residential, hotels & restaurants, commercial & administrative, education / sports / pools, health & wellness, and industry & crafts. Project work is sales-led and project-based, with engagements tendered through direct client relationships and public procurement; disclosed project values range from approximately 550K CHF (Aquaparc transformation) to over 5M CHF (Groupe Mutuel administrative center). The client roster includes government and municipal buyers (Ville de Sierre, Commune d'Anniviers, Commune de Martigny), insurance and financial enterprises (Groupe Mutuel), automotive and hospitality operators (Emil Frey, Hôtel Garden Golf, Felli Hôtels SA), and thermal/aquatic facilities (Les Bains d'Ovronnaz, BICI Entertainment SA).

The business model is professional services: hourly-rate engineering consulting and project-based fees, with multi-year contract cadence tied to construction and renovation program length. TECSA is structured as a founder/management-owned private limited company (CHE jurisdiction), currently led by director Christian Besse with support from three shareholders and a team of ~14 staff including licensed specialists (federal brevets in thermal systems, fédéral maîtrise in sanitary, CECB expert), technical staff, draftspeople, and apprentices across heating, ventilation, sanitary, and commercial functions. Marketing is conducted via the company website, professional association memberships (SWISSOLAR, CREM, CECB, TECBAT, MINERGIE, USTSC, SUISSETEC, PRORENOVA), and direct phone/email engagement. The firm has no subsidiaries, no outside funding, no disclosed patents, and no public-market presence.

Name

TECSA

Legal name

TECSA – Techniques Energétiques et Consulting SA

Website

https://tecsa.ch

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

TECSA is a privately held Swiss engineering consultancy in Conthey, Valais, delivering HVAC, sanitary, and energy (CVS) design services for residential, commercial, hospitality, education, healthcare, and industrial buildings across the Valais canton.

Ownership category

akta.pro rank

Product category

Building HVAC Engineering Consulting

NAICS

Professional, Scientific, and Technical Services (54)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL)

Keywords

• Building HVAC engineering
• Heating system design
• Ventilation consulting
• Sanitary engineering services
• Energy certification consulting

Headquarters

HQ city

Conthey

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering services for heating, ventilation, air conditioning, and sanitary installations. Services range from preliminary study phase to final installation handover, including project planning, design calculations, technical drawings, supplier negotiation, cost estimation, execution plans, and construction site supervision.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

TECSA is a Swiss engineering consulting firm providing CVS (chauffage, ventilation-climatisation, sanitaire) services for buildings and industry. Services span preliminary studies, system design and calculations, technical drawings, supplier negotiation, cost estimation, execution plans, construction site supervision, and final installation handover. The firm delivers these across residential, hospitality, commercial, educational, healthcare, and industrial projects in the canton of Valais.

Product overview

TECSA (Techniques Energétiques et Consulting SA) is a Swiss engineering and consulting firm founded in 1998, offering specialized services in building technical systems. The company provides four core integrated services: Heating Services (design of heat pumps, boilers, solar systems, district heating), Ventilation Services (technical consulting and aerodynamic calculations), Sanitary Services (water treatment, sprinkler systems, pool installations), and Energy Services (energy certifications, thermal justifications, building labels). These services are delivered through technical offices and on-site construction support, serving sectors including residential, hospitality, commercial, education, healthcare, and industry.

Differentiator

Problem solved

Functional benefit

Products and services

• Heating Services (Chauffage)

Quantifiable outcome

• Projects exceeding 5,000,000 CHF in value (Groupe Mutuel administrative center)
• +2 more outcomes

Named customers11 records

Segments6 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

Eight partnerships are on record, tiered minor and core.

• SWISSOLARminorOthersProfessional membership association for solar energy in Switzerland. Membership indicates expertise in solar energy systems and alignment with Swiss renewable energy initiatives.
• CREMminorOthersEnergy-related professional association in Switzerland. Membership supports TECSA's energy consulting services and regulatory knowledge.
• CECB (Certificat Energétique Cantonal des Bâtiments)coreOthersSwiss cantonal energy certificate for buildings. TECSA is authorized to issue CECB certificates and CECB+ reports, which is a core competency for their energy advisory services.
• TECBATminorOthersTechnical building systems industry association in Switzerland. Membership supports technical knowledge and industry networking.
• MINERGIEcoreOthersSwiss building standard for energy-efficient construction and renovation. TECSA is authorized to provide Minergie certifications (A/P labels), a core differentiator for their services.
• USTSCminorOthersSwiss technical trades association. Membership supports technical competency and industry representation.
• SUISSETECminorOthersSwiss Federation of Technical Trade Associations. Industry association supporting technical trades and craftsmanship.
• PRORENOVAminorOthersSwiss association for building renovation and energy efficiency. Membership supports expertise in renovation projects and energy optimization.

Scale indicators3 records

Recent moves5 records

Expansion highlights8 records

Direct peers

• Waldhauser + Hermann AG: Swiss engineering consultancy specializing in HVAC, refrigeration, and sanitary engineering for buildings. Closest head-to-head peer given shared CVS service focus and Swiss regional delivery model.
• Hunziker Betatech AG: Swiss engineering firm with core practices in HVAC, building services, and energy consulting. Comparable scope and customer base across residential, commercial, and public-sector building projects.
• Planungsbüro Rösseler: Mid-sized Swiss HVAC/sanitary engineering office serving building and industrial clients. Comparable in scale, service mix (heating, ventilation, sanitation), and project-based consulting model.
• Schweizer Haustechnik (SHT): Swiss building services engineering firm with HVAC, sanitary, and energy practice. Comparable CVS consulting offering and project mix in Swiss residential and commercial segments.

Broad incumbents

• Ernst Basler + Partner (EBP): Swiss consulting firm active in energy, buildings, and infrastructure. Overlaps with TECSA in energy consulting, building certification, and HVAC-related decarbonization advisory for private and public clients.
• CSD Ingenieure AG: Swiss engineering consultancy across energy, environment, and building services. Shares with TECSA the energy consulting and certifications mandate, with broader environmental and infrastructure advisory depth.
• AFRY (formerly Pöyry): Global engineering and design consultancy with a Swiss building-services practice. Competes with TECSA on larger institutional and industrial HVAC/energy projects and on multi-disciplinary scope.
• Basler & Hofmann: Established Swiss engineering consultancy with strong HVAC, energy, and sustainable-building practices. Overlaps with TECSA across building services engineering and Minergie-certified project delivery.
• Amstein + Walthert: Switzerland's largest privately-held engineering consultancy (1,000+ staff, multi-canton). Directly competes with TECSA in CVS/HVAC and energy consulting for buildings but at materially larger scale and broader geographic reach.

Emerging players

• TEP Energy: Swiss energy-efficiency and building energy consulting firm. Comparable niche in CECB certification, energy advisory, and building retrofits — a partial-overlap competitor in the same regulatory and certification ecosystem.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tecsabureaucvsconthey

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 TECSA