Darren Spriggs, managing director of AIG Life and Jane Dale, finance director at AIG Life have both resigned, the company has announced.
Both joined the then Ageas Protect Ltd to steer the business from start-up to development and growth, and oversaw the sale of the company to AIG.
Federico Spagnoli, EMEA consumer president at AIG said: "AIG Life is a key component of our strategy to drive the continued expansion of our consumer portfolio.
"It is rightly recognised in the industry for product innovation, the effective use of technology and high quality service.
"The management team will remain focused on these strengths as they continue to grow the business.
"The process of rebranding the company to AIG Life is complete ahead of schedule thanks to the hard work and dedication of the employees and management.
"We would like to express our appreciation to Darren and Jane for their hard work in growing the business over the last four years and during the transition process.
"The search for suitable successors has begun with the help and support of the Senior Management at AIG Life who remain committed to the successful development of the business as part of the AIG family."