Engagement modes,how wecollaborate.

§ 01The DNA, not the contract

This DNA shapes the arbitrations we carry, the way we assemble partners, and the transparency we owe the client. It applies equally to a one-off Owner's Engineer mandate, to a Design-Build consortium of several hundred million, or to a long-term joint venture. The contractual engagement we propose roots itself in an ethical discipline that precedes any commercial negotiation, and it is written into the particular conditions of the contract itself: declaration of existing relationships with other project parties, documented non-conflict clause, systematic supplier benchmarking rule, immediate recusal rule as soon as a conflictual situation emerges.

§ 02Trusted third party and technological neutrality

The trusted third-party posture is described in detail in the Trusted third-party DNA sheet. The technological neutrality that supports it, including the transparent handling of the Vonbuild case, is documented separately. The client can audit this neutrality at any time, request the list of existing relationships with the other parties to a project, or recuse us without notice if a conflictual situation emerges during the mission. This audit possibility is not a marketing argument: it is contractually embedded and enforceable from the day of signing.

§ 03Operational consequences

This discipline has direct operational consequences. We refuse retro-commissions from suppliers and software vendors, we receive no financial participation on the solutions we recommend, we never sign a preference pact with a manufacturer. On the normative framework applicable to each mission, see the Standards & Referentials sheet, which details how we navigate Swiss SIA/MoPEC, European Eurocodes/EN/DTU and international FIDIC/AAMA/ASTM depending on the project jurisdiction.

§ 01Why these two services are documented here

The Operating Partner and the Venture Catalyst are not contractual modes of the project perimeter (envelope package, design, execution). They are intervention modes on the company itself: taking over a commercial function, restructuring an operational situation, launching a new activity through to first concrete proof. We document them on this hub page because the contractual frontier between project and company is regularly crossed, and because an owner-manager consulting the engagement panorama should be able to read both registers together.

§ 02Shared NDA discipline

Operating Partner and Venture Catalyst are sensitive missions: crisis situations, leadership transitions, confidential launches. The confidentiality discipline is shared with M&A and turnaround missions: systematic NDA from the first exchange, dossier isolation, no public reference without explicit written client consent. This discipline is contractually documented and auditable. It applies independently of the chosen contractual mode (fixed fee, success fee, retainer).

§ 01Five orientation rules

For an owner who has already contracted a total or general contractor, the right mode is the Owner's Engineer on the envelope package, an independent technical eye on the consortium financed. For an owner without GC/TC under contract, the Lead Envelope Consultant in direct contract retains control before executors are designated, frequent on institutional, high-end residential and patrimonial projects. For a mandating architect, the LEC in subcontract to the design team aligns with competition rhythm and protects architectural intent through to delivery.

For a general contractor or total contractor, the LEC in subcontract or a scoped audit and shadow pricing mission externalises envelope mastery without capturing consortium margins. For a facade contractor, the register is scoped technical support, business advisory, or consortium structuring. Facade engagement modes apply to projects ; for company-level needs the Business Engineering pillar takes over, with its own contractual modes.

§ 02Step into entrepreneurial modes

The step into consortium or joint venture is conditional on non-negotiable conditions: project size and complexity, proven trust, financial solidity, strategic coherence, governance defined before signature. Minimum instruction window for a mega-project consortium: four to eight weeks of pre-engagement. The right mode is the one that serves the client's interest and the project, not the one that would maximise our fees. We redirect to another firm when the relevant mode falls outside our perimeter.

§ 01Composition and benchmarking

The network includes specialist engineering firms (structure, MEP, acoustic, fire, wind CFD, blast, dynamic thermal simulation), selected European industrial manufacturers (aluminium extruders, steel and stainless steel rollers and section makers, glulam and CLT timber producers, glass processors, GFRP pultruders, composites, UHPC, BIPV, smart glass), installation specialists, construction law firms, financial experts, sustainability consultants. Reference geography primarily European with identified partners in Middle East and Asia for international projects. Partners are systematically benchmarked for each mission, none has an automatic access right. No hidden commission, no personal benefit accepted. The client can contract directly with a mobilised partner or impose a partner of their choice.

§ 02Selection criteria

Four criteria structure admission and continued membership : demonstrated technical excellence through verifiable references, shared neutrality, work culture compatible with our editorial discipline, contractual reliability observed over time. A partner who fails to honour their commitments leaves the network without debate. A partner who proposes a retro-commission, even informally, is immediately recused.