A successful initial public offering for Marketo could lead to buyout interest for the marketing-automation vendor, Chris Kanaracus writes. Salesforce.com is a possible suitor, as Marketo relies on Salesforce integration for much of its revenue. "Salesforce.com has been seen as reluctant to acquire similar capabilities for fear of alienating Marketo and similar partners. But it has also stood back and watched as one Marketo competitor after another has been scooped up for handsome sums," Kanaracus writes. Other potential contenders include SAP, Adobe, SAS Institute and Infor, analyst Ray Wang says.