Rede D'Or São Luiz S.A. is looking for acquisitions. The company has hired banks for a proposed initial public offering, seeking a valuation of at least BRL 100 billion ($18 billion), a source familiar with the matter said. The company and its shareholders, which include founder family Moll, private equity firm Carlyle and Singapore state investor GIC, plan to raise BRL 15 billion, the source added. Most of the proceeds will be raised to fund Rede D'Or expansion, including some acquisitions, this person said.