NetSuite plans to acquire privately held Bronto Software, a cloud-based commerce marketing company for about $200 million in cash and stock. NetSuite signed an agreement with Durham, N.C.-based Bronto in a deal expected to close during the June quarter. The companies said Bronto's marketing automation platform is used by more than 1,400 customers. Founded in 2002 by CEO Joe Colopy, Bronto employs more than 220 people and also has offices in London, England, and Sydney, Australia.