Eighteen years of building quietly, and on purpose.
I'm Margaux Sinclair, chief executive officer of Meridian Group— a diversified holding company I've led since 2014. My work is allocating capital, attention, and people across five ventures, and making sure every one of them is still standing in twenty years, not just twenty quarters.
Before Meridian Group, I spent six years inside two of its founding business units, first in strategy and then as Chief Operating Officer — the kind of path that teaches you a company from the floor up, not just from the boardroom down.
“Discipline compounds. Attention is the scarcest capital a leader has.”
I run Meridian Group on a small number of rules: capital follows conviction, not consensus; every venture keeps its own operating identity; and no business unit gets to call itself essential without proving it for a decade, not a launch quarter.
Outside the group, I sit on two public-company boards and mentor a small cohort of first-time founders — the same way I was mentored, on the floor, before I ever had a title.
The long version.
- 2008
Joined Meridian as Strategy Director
Recruited to rebuild the group's capital-allocation framework from the ground up.
- 2012
Appointed Chief Operating Officer
Led a three-year operational turnaround across the group's four founding business units.
- 2014
Named Chief Executive Officer
Took the helm and set a new ten-year portfolio strategy centred on five core ventures.
- 2017
Launched Meridian Energy
Committed the group's first capital toward utility-scale renewables.
- 2021
Group-wide expansion into Asia-Pacific
Opened the Singapore headquarters and tripled the group's international footprint.
- 2026
Group reaches $4.2B+ in valuation
Five ventures, thirty-one countries, and a board mandate to keep building.