Paula Burgess was named CEO of Pensions Infrastructure Platform, an infrastructure investment manager for U.K. pension funds, a spokesman said.
Ms. Burgess, who was PIP's chief operating officer, replaced Mike Weston. Ms. Burgess will not be replaced for the time being, the spokesman said.
Mr. Weston stepped down after four years. The spokesman said Mr. Weston's plans are "unknown."
PIP manages pension funds' investments into renewable energy, transport and social infrastructure, managing commitments and external investments of close to £2 billion ($2.5 billion).