/PRNewswire/ Northwestern Mutual today announced plans to invest more than $500 million in its North Office Building located at 818 East Mason Street in.
NORTHWESTERN MUTUAL ANNOUNCES $500M INVESTMENT IN DOWNTOWN MILWAUKEE CAMPUS insurancenewsnet.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from insurancenewsnet.com Daily Mail and Mail on Sunday newspapers.