Physeos

What Physeos does

Physeos SA is a Swiss engineering boutique founded in 2011 and headquartered in Sion, Valais, specializing in sustainable development and energy efficiency for the built environment and industrial processes. The firm is staffed by a five-person team of energy and building-physics engineers — most of whom previously worked together at the HES-SO Valais 'énergie & physique du bâtiment' research unit — and operates as a private, independent corporation (Physeos SA) with no disclosed external shareholders or funding history. Its service portfolio is organized around four offerings: (1) building-physics consulting and expertise including SIA 380/1 thermal calculations for building permits, Minergie® and CECB energy certifications, subsidy applications, condensation and overheating analyses, and thermography; (2) bSol®, a proprietary professional software tool for optimizing energy consumption and thermal comfort in real estate projects; (3) training and continuing-education services on energy standards and professional tools, including municipal staff training; and (4) applied research and knowledge-transfer projects targeting CO2 emission reductions.

The business model is project-based professional services revenue complemented by software licensing for bSol® and ancillary Excel tools (PACesti, PVopti). Go-to-market is sales-led and event-driven: the firm engages directly with property owners, developers, municipal administrations, and real-estate professionals in the Valais canton, participates actively in the Plan climat de Sion région conference cycle, and maintains a published network of energy-renovation facilitators. Deep integration with the Valais cantonal energy program (M-01 through M-18 and IP subsidy lines) and Minergie/CECB certification authority form the structural basis of demand, with the new Swiss energy legislation effective January 1, 2025 providing a near-term regulatory tailwind for compliance-driven engagements. Geographic scope is domestic and narrowly concentrated in Valais; pricing is quote-based and not publicly disclosed. No customer logos are publicly listed, and revenue is not disclosed.

Name

Physeos

Legal name

Physeos SA

Website

https://physeos.ch

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Physeos SA is a five-person Swiss engineering boutique in Sion, Valais, providing building-physics consulting, energy certifications (Minergie, CECB, SIA 380/1), bSol® software, and training services to property owners, developers, and municipalities in the Valais canton.

Ownership category

akta.pro rank

Product category

Building Energy Consulting

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Energy Systems & Power Engineering Consulting (BPAHAIAG)

akta.pro secondary industry

Real Estate ESG / Sustainability & Resilience Advisory (Decarbonization, Climate Risk) (BPAJANAI)

Keywords

• Building physics consulting
• Energy efficiency services
• Thermal performance analysis
• Energy certification services
• Building renovation consulting

Headquarters

HQ city

Sion

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. Building Physics Consulting Services: Professional consulting services including thermal calculations for building permits (SIA 380/1), energy certification, and technical consulting for construction and renovation projects.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Physeos SA provides building physics consulting and energy efficiency services for real estate projects, including thermal calculations (SIA 380/1) for building permits, Minergie and CECB energy certifications, subsidy application support, condensation and overheating analyses, and thermography. The firm also sells its proprietary bSol® software tool to real estate professionals for optimizing energy consumption and thermal comfort in building projects, and offers training and applied research services.

Product overview

Physeos SA offers a portfolio of building physics and energy efficiency services centered around four main offerings: (1) Building physics consulting and expertise including thermal calculations, certifications (Minergie, CECB), and thermography; (2) bSol® professional software tool for optimizing energy consumption and thermal comfort in real estate projects; (3) Professional training services on standards and industry tools; and (4) Research and knowledge transfer projects targeting CO2 emission reductions. The company was founded in 2011 by a team from HES-SO Valais after four years of collaborative work in building physics and energy optimization.

Differentiator

Problem solved

Functional benefit

Products and services

• Physique du bâtiment (Building Physics Services)

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Five partnerships are on record, tiered minor and core.

• MinergieminorOthersPhyseos offers Minergie certification services for new construction and renovation projects. Minergie is a Swiss quality label for energy-efficient buildings.
• CECB (Certificat Energétique Cantonal des Bâtiments)minorOthersPhyseos provides CECB certification and CECB Plus assessments for building energy performance. CECB is the cantonal energy certificate for buildings.
• Plan climat de Sion régioncoreStrategic or Co-development PartnerActive collaborator with the regional climate plan (Plan climat de Sion région) conference cycle on building renovation and subsidies. Physeos presents educational content on renovation and renewable heating.
• HES-SO ValaisminorStrategic or Co-development PartnerOrigin of Physeos founders who worked together for 4 years in the 'énergie & physique du bâtiment' unit before founding the company in 2011.
• Valais Cantonal Energy ProgramcoreOthersDeep integration with cantonal building energy programs. Provides detailed subsidy program information including M-01 through M-18 and IP programs for insulation, heating, solar, and building envelope improvements.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Emerging players

• Enerix: Smaller Swiss energy and sustainability consultancy working on building renovation, renewable heating, and subsidy program support — similar service scope to Physeos with overlapping municipal and developer clients.

Direct peers

• Eicher+Pauli: Swiss energy and building services engineering firm delivering energy concepts, building physics calculations, and HVAC engineering — overlapping with Physeos' building physics and energy efficiency consulting.
• Amstein+Walthert: Swiss engineering consultancy offering building physics, energy concept, Minergie and CECB certification, and HVAC consulting — directly comparable service portfolio to Physeos across Switzerland.
• Planair: Swiss energy and climate consultancy supporting communes on climate plans, building renovation programs, and renewable heating — closely aligned with Physeos' work on Plan climat de Sion région and energy renovation facilitation.
• Gartenmann Engineering: Swiss HVAC and building physics engineering firm providing energy calculations, thermal comfort analysis, and Minergie certification support — overlapping services with Physeos in the Swiss building physics niche.
• CSD Ingénieurs: Swiss engineering consultancy with building energy, sustainability, and environmental services — comparable to Physeos' energy and sustainability advisory offering, though at significantly larger scale.

Broad incumbents

• Basler & Hofmann: Large Swiss engineering firm with broad building physics, energy, and infrastructure practices — competes with Physeos in building energy consulting while also serving much larger and more diversified clients.

Others

• SIA (Swiss Society of Engineers and Architects): Swiss professional society that issues the SIA 380/1 thermal standard Physeos applies; relevant ecosystem counterpart shaping regulatory frameworks rather than a direct competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/physeos

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Physeos