About our Management Training practice

We started with a simple frustration: too many training programs produce enthusiasm on Friday and nothing different on Monday. We wanted to fix that.

How we got here

In 2014, our founder Nathalie Grenier was running operations for a mid-size logistics company in Laval. She kept sending her supervisors to leadership workshops. They would come back with thick binders and motivational quotes, and then manage exactly the way they had before. The gap between the training room and the warehouse floor was enormous.

She started designing her own sessions. Short. Specific. Built around the real problems her supervisors faced that week. Within a year, turnover in her department dropped from 31% to 14%. Other companies in the industrial park asked what she was doing differently.

By 2016, Nathalie had left operations to focus on training full-time. She brought on Marc-Antoine Dufresne, a former plant manager with fifteen years of experience in food manufacturing, and together they built the curriculum that became Principal Management Skills.

Our founders in conversation at the office

What we believe

These are the principles behind every program we design and deliver. They are not aspirations. They are constraints we hold ourselves to.

Practice over theory

Reading about feedback is not the same as giving it to a defensive employee at 3 p.m. on a Tuesday. Our sessions spend at least 60% of the time on structured practice with real scenarios, not slides.

Small groups only

We cap workshops at twelve participants. Larger groups make it easy to hide. In a room of eight or ten people, everyone speaks, everyone practises, and the facilitator can give individual attention.

Customisation is not optional

We do not run the same workshop twice. Before every engagement, we interview three to five participants and their direct reports. That data shapes the case studies, role-plays and discussion topics in the room.

Follow-through matters

A workshop without follow-up is entertainment. Every multi-day program includes a 90-day check-in where participants report on what they tried, what worked, and where they got stuck. We adjust the next session based on that feedback.

Our team

We are a small team on purpose. Every person here has managed people in an operational setting before joining us. Nobody teaches something they have not done themselves.

Portrait of Nathalie Grenier, founder

Nathalie Grenier

Founder and lead facilitator

Nathalie spent twelve years in logistics operations before launching the company. She specialises in first-time manager development and has personally facilitated over 300 workshops. She holds a graduate diploma in adult education from UQAM.

Portrait of Marc-Antoine Dufresne, senior facilitator

Marc-Antoine Dufresne

Senior facilitator

Marc-Antoine managed production teams of up to 120 people in the food industry. He brings a direct, no-nonsense style to difficult-conversations training and executive coaching. He is a certified coach through the International Coaching Federation.

Portrait of Samira El-Khoury, program coordinator

Samira El-Khoury

Program coordinator and facilitator

Samira joined in 2020 after five years as a team lead in healthcare administration. She coordinates logistics for all workshops and co-facilitates the new manager foundations program. She is completing a master's degree in organizational development at Concordia.

Milestones

2016 — Company founded

Nathalie registered the business and delivered the first workshop to a group of eight supervisors at a packaging plant in Laval.

2017 — Marc-Antoine joins

The team doubled. Marc-Antoine brought deep expertise in manufacturing operations and expanded our reach into the food and beverage sector.

2019 — 500th participant trained

We reached this milestone with a cohort of nurse managers at a regional health authority. That project also marked our first engagement outside the private sector.

2020 — Virtual delivery launched

When in-person sessions stopped, we redesigned our programs for live virtual delivery within three weeks. The format worked well enough that we still offer it as an option.

2023 — 1,200 managers trained

We crossed this number with clients across manufacturing, healthcare, tech and professional services. Our geographic reach extended to Ontario and New Brunswick through virtual programs.

2025 — Samira becomes co-facilitator

After completing her coaching certification, Samira began leading sessions independently, allowing us to serve more clients without increasing group sizes.