A financial services company that has focused on selling small and midsize retirement plans wants to serve more large plans.

Principal Financial Services Group Inc., Des Moines, Iowa, has named Ed Nowak, vice president of retirement and investor services distribution, to lead an institutional sales team that will approach plans with $100 million or more in plan assets, the company says.

The company also has created a team that will serve institutional consultants and has added product specialists who understand large-plan products.