Sources said plans for the treaty start-up are at a fairly early stage.
Curran exited TMK in spring 2022 when the carrier dropped treaty reinsurance following a strategic review of the business.
The underwriter became head of reinsurance in April 2019, replacing Huckstepp, who left for a career break.
Huckstepp was appointed deputy head of reinsurance at Syndicate 510 in 2000 and succeeded Andrew Carrier in the head role in 2007.
Curran is well respected in the treaty space and has worked for Beazley, Wellington and Catlin.
The development marks the second example of a major reinsurance start-up that has emerged during Monte Carlo Rendez-Vous.
Earlier during the event, Insurance Insider exclusively revealed that former AIG, Marsh McLennan and Ace CEO Brian Duperreault is targeting a surprise return to the sector as chairman of reinsurance start-up Mereo Advisors.
Sources said Duperreault has teamed up with investment executives Lawrence Minicone and Jason Miller to form a new underwriting business that would constitute a Bermuda-based rated carrier, with an associated fund structure.
It is understood that Mereo will focus primarily on underwriting, in contrast to the asset risk-focused hedge fund reinsurance structures used elsewhere.
Sources said Mereo is currently working with investors and regulators, with a view to launching towards year end. Capital-raise targets tend to be relatively elastic based on demand, but sources suggested the team was likely to look for $1bn+ of commitments.
Approached by this publication for comment, Duperreault said: "I believe now just might be the best time in my career to be launching a reinsurance company. To me, perceived risk is probably higher than actual risk, but time will tell."
In another marker of growing reinsurance competition, this publication revealed in January that former Everest Re reinsurance leader John Doucette was working on a fresh set of plans for a reinsurance start-up. This was after he parted ways with former Max Capital colleague Bob Cooney on a prior fundraising initiative last year.
