Christofi will take on the role of chief executive and Antoniou will be co-founder.
The London-based firm will offer “nationwide expert counsel” on debt and equity, which covers development funding, short-term lending, investment finance, commercial mortgages, high net worth (HNW) mortgages, asset finance and commercial insurance.
The company will also be unveiling a range of exclusive limited products with key lenders and will offer complimentary financial strategy reviews for developers and investors.
It will act as an external financial director for clients, facilitating finance and offer a blueprint to help customers navigate through complex real estate financing landscape.
Christofi was most recently co-founder and managing director of Sirius Property Finance for around seven years and before that held roles at Brightstar and Robert Sterling Financial Services.
Christofi said: “We are thrilled to bring Karis Capital to the real estate community. Our goal is to redefine the way developers and investors approach financing. We are not just offering solutions; we are building enduring partnerships that fuel success.”