Préface Sàrl

What Préface Sàrl does

Préface Sàrl is a Swiss building envelope engineering consultancy founded in 2011 and headquartered in Étagnières, canton of Vaud, with a branch office in Nods (canton of Bern). The firm provides specialist facade consulting services spanning the full envelope lifecycle — from initial analysis and technical creation through to construction supervision — and acts as the accountable party for aesthetic, durable, and energy-efficient building envelopes. Its work covers new construction and renovation across educational, residential, commercial, healthcare, sports, industrial, and diplomatic building typologies, with material expertise in aluminum, glass, wood, stone, zinc, and composite facade systems.

The company generates revenue through project-based professional services fees negotiated directly with architects, general contractors, property owners, and public institutions; pricing is not publicly disclosed and engagement is consultative and relationship-driven rather than product-based. Go-to-market relies on direct professional engagement and procurement tenders concentrated in the French-speaking Swiss cantons (Vaud, Fribourg, Geneva, Neuchâtel, Valais), supplemented by an active project portfolio website, industry publication features (Chantiers Magazine, Batimag), and memberships in trade bodies such as CVCI, SZFF, and SZS. Notable clients include EPFL, La Vaudoise Assurances, CFF Immobilier, IHEID, Swissgrid, the Permanent Mission of India to the UN, and the Communes of Rolle and Lutry.

Préface is a privately held Swiss limited liability company (Sàrl) with a current team of six employees, led by associate Lorenzo Simeoni. The firm carries no disclosed funding, no subsidiaries, no M&A activity, and no public listing. Its competitive positioning rests on a track record of architecturally prominent projects, industry recognition (including a first-place 2024 Prix Forix award for the Kengo Kuma-designed Grand Morillon student housing facade), and a relational, expertise-driven sales motion rather than any technology or data-driven differentiation.

Name

Préface Sàrl

Legal name

Préface Sàrl

Website

https://preface.ch

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Préface Sàrl is a Swiss building envelope consultancy, founded in 2011 in Étagnières, Vaud, that delivers specialist facade design, technical creation, and construction supervision for architects, general contractors, property owners, and public institutions across French-speaking Switzerland.

Ownership category

akta.pro rank

Product category

Facade Engineering and Building Envelope Consulting

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Sustainability & ESG Consulting (BPAHACAK), Commercial General Contracting (New Build) (IMAFAAAA)

Keywords

• Facade engineering services
• Building envelope consulting
• Construction supervision services
• Facade design consulting
• Building envelope analysis

Headquarters

HQ city

Etagnières

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Facade Engineering & Consulting Services: Revenue is generated through engineering and consulting engagements on building envelope projects. Préface takes full responsibility for the facade from initial analysis through construction supervision, billing for specialist expertise on new construction and renovation projects across building types.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Préface Sàrl provides specialist facade engineering and building envelope consulting services in Switzerland, taking end-to-end responsibility for the building envelope from initial analysis through technical creation (detailed facade design) to on-site construction supervision. The firm serves architects, general contractors, property owners, developers, and public institutions across new construction, renovation, and energy-efficiency upgrade projects spanning schools, sports centers, residential housing, commercial offices, healthcare facilities, and industrial buildings.

Product overview

Préface Sàrl is a Swiss building envelope engineering company providing facade design and construction services. The company offers a comprehensive service for building envelopes encompassing analysis, technical creation, and construction monitoring for facades. Their portfolio spans multiple building typologies including educational facilities (schools, sports centers), residential buildings (student housing, apartments), commercial properties (offices, shopping centers), hospitality (hotels), healthcare facilities (nursing homes, hospitals), and industrial buildings. Projects range from new construction to renovation and energy efficiency upgrades, with materials including aluminum, glass, wood, stone, and composite facade systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Facade Engineering and Building Envelope Consulting End-to-end specialist facade consulting covering initial analysis, technical creation (detailed facade design), and construction supervision, for architects, general contractors, property owners, developers, and public institutions across new construction, renovation, and energy-efficiency upgrade projects.

Named customers12 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record.

• CVCI (Chambre vaudoise du commerce et de l'industrie)OthersCorporate member of CVCI, the Vaud Chamber of Commerce and Industry, signaling active participation in the regional business community.
• SZFF (Schweizerischer Zincenverband für Fassaden)OthersMember of the Swiss Zinc Association for Facades, a professional trade body for facade systems and building envelope technologies.
• SZS (Schweizerische Zone für Sonnenlicht)OthersMember of the Swiss Solar Zone association, relevant to facade solar protection and energy-efficient building envelope design.
• P4M (Planer und Planerinnen für multimedia)OthersListed as a partner, suggesting a working relationship in multimedia planning or digital project communication tools.
• Qualitätssicherung am Bau (Quality Assurance in Construction)OthersQuality assurance partner for construction, ensuring standards compliance on building envelope projects.
• Qualitätssicherung im Brandschutz (Fire Safety Quality Assurance)OthersFire safety quality assurance partner, ensuring facade systems meet Swiss fire protection standards.
• SBFI (Staatssekretariat für Bildung, Forschung und Innovation)OthersDisplayed under 'Nos engagements' (our commitments), indicating participation in Swiss education and innovation initiatives related to building envelope R&D or apprenticeship/training programs.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Atelier Girsberger: Swiss facade engineering practice offering planning, technical design, and consultancy for building envelopes. Direct competitor with comparable boutique model, similar materials expertise, and same Swiss market focus.
• Eckersley O'Callaghan: International facade and structural engineering consultancy with European presence. Directly comparable specialist practice focused on complex building envelopes for signature architecture projects.
• Knippers Helbig: German engineering firm specializing in complex facades, structures, and building envelopes for signature architecture. Comparable in technical ambition and focus on architecturally ambitious projects, with international reach.
• Werner Sobek: German engineering firm specializing in facade and structural engineering for complex, high-performance building envelopes. Directly comparable technical scope with international project portfolio; comparable to Préface in materials and complexity focus, but operates at larger scale.
• Front Inc: Canadian facade engineering consultancy providing specialist building envelope design and consulting. Comparable specialist boutique model focused on complex facades for high-profile architects and developers.
• Josef Gartner: German facade engineering and contracting specialist (now part of Permasteelisa / Kingspan). Comparable technical expertise in complex envelope design and execution, with international project portfolio.
• Lüchinger+Meyer: Swiss facade engineering consultancy headquartered in Zurich, providing specialist facade design and construction supervision across Switzerland. Closest direct competitor in the same niche — same service offering, similar boutique scale, and overlapping Swiss client base of architects and general contractors.

Broad incumbents

• Bollinger+Grohmann: International structural engineering firm with deep facade expertise across Germany, Austria, and Switzerland. Overlaps with Préface's facade specialization but operates as a broader engineering practice with multiple service lines.
• Arup (Facades): Global engineering consultancy with a dedicated facades practice providing specialist building envelope services. Comparable specialist offering but operates as one service line within a much larger multi-disciplinary firm.

Regional players

• Sottas SA: Swiss facade contractor and general contractor, frequently engaged alongside specialist facade consultants like Préface. Comparable in Swiss market focus and building envelope expertise, but operates as a builder rather than a pure design consultancy.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/pr%C3%A9face-s%C3%A0rl

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 Préface Sàrl