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About

A firm that turns change into steerable capability

A boutique core, a network of senior experts, and one simple rule: every mandate is delivered by people who have done it before.

The founder

Laurence Poissant

For twenty years, Laurence Poissant has joined organizations at the moment technology changes the rules: web, mobile, media convergence, platforms, automation, and today AI. Digital leadership in a major media group, transformation of a cooperative network, multi-division marketing leadership: every chapter follows the same method — read the disruption, decide, install the system, measure.

Medialys was born from one observation: mid-size organizations in Quebec lack access to growth leadership of this caliber — large firms ignore them, agencies execute without a frame, and hiring a full-time senior executive is not always the right first step. The answer: framed mandates, published pricing, and a model where strategy and execution are never separated.

Read the journey: 1980 → 2026, nine disruptions

The Groupe Medialys model

Groupe Medialys is a boutique firm: a permanent core that frames, steers and answers for results, surrounded by a network of senior experts mobilized per mandate. You get large-firm depth at compact-team cost structure.

  • The team is sized to the mandate: you pay for the required expertise, not overhead.
  • No junior associate doing the work: every practitioner has 10+ years in the field.
  • One accountable point of contact for results, from first call to final deliverable.

The network expertise

Five typical profiles mobilized per mandate. The exact practitioners are introduced during framing.

Senior commercial strategist

20+ years in B2B sales leadership. Works on External Board and Pipeline Sprint mandates.

Data architect

Designs the dashboards, CRM integrations and end-to-end measurement.

B2B CMO

Fractional marketing leadership: quarterly plans, budgets, agency steering.

AI specialist

Ships the AI agents and automation sprints, guardrails and compliance included.

Governance consultant

Committees, board reporting, Law 25 compliance: the frame that makes growth steerable.

Meet the collective

30 minutes to describe your situation. We tell you which expertise would be mobilized — and if we are not the right partner, we tell you that too.

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