A mother agency is the agency that first signs a model, develops them, and manages their overall career — including placing them with larger agencies in other markets like Paris, Milan and New York, and taking a percentage of what those placements earn. It is the model's home base and long-term manager.
What a mother agency does
Scouts and signs the model, then builds their book, digitals and comp card.
Sends them to bigger markets through partner ("placement") agencies and coordinates their bookings.
Manages money, contracts and long-term career decisions — a manager, not just a booker.
Mother agency vs local / placement agency
Mother agency — your home agency and career manager.
Local / placement agency — an agency in another city that books you there, coordinated through your mother agency.
It takes a percentage of your earnings, including a cut of what you earn through the placement agencies it sends you to in other markets.
Do I need a mother agency?
For a serious career, usually yes. It's the home base that develops you and opens other markets; trying to sign city-to-city on your own is far harder.
What's the difference between a mother agency and a regular agency?
A mother agency manages your whole career and places you with agencies in other cities; those placement agencies just book you locally.