About
I spent seven years at McKinsey learning how large organizations really make decisions — and how often they confuse activity for progress. I went independent to work differently: small engagements, senior attention, no army of juniors. I work with founders at the inflection points — a new market, a pricing change, a fundraise, a reorg — where getting the call right matters more than getting a 90-slide deck. My job is to bring clarity, pressure-test the thinking, and leave the team more capable than I found it.
Help good operators make their few highest-stakes decisions with clarity.
Principles: Candor · Focus · Evidence · Leave them stronger
Experience
13 years in strategy — from McKinsey to independent advisory
Founder & Principal
2019 – PresentDelacroix Partners
Independent strategy advisory. 30+ engagements across SaaS, marketplaces, and climate tech.
Engagement Manager
2012 – 2019McKinsey & Company
Led strategy and growth engagements for tech and consumer clients across EMEA.
Education
MBA — INSEAD 2012
MA, Economics — LSE 2009
Projects & publications
Repricing a SaaS leader
A Series B company was leaving money on the table. New packaging + pricing lifted net revenue retention from 104% to 126%.
Entering the US
Market-entry strategy for a European marketplace. Defined the beachhead, the model, and the first-year plan.
The fundraise narrative
Reframed a climate-tech Series A story. Closed $14M, oversubscribed, in 6 weeks.
References
“Marcus did in two weeks what our last consultants couldn't in two quarters. The pricing change alone was worth 20x the fee.”
“The sharpest strategic mind I send founders to. He makes messy decisions feel obvious.”