Occasionally we find papers, reports, studies and other resources related to the business of providing project and program management (P/PM) products, services and technologies to owners, clients and others with programs and project to plan and management. Here are a few so far.
List of Project Management Companies - The 
new resource is a listicle (article + list) published on ranker.com that provides a list of major project management companies in the world. This article may serve as checklist for someone considering working in Program and Project Management industry or doing a job hunt among the big names. Read at http://www.ranker.com/list/project-management-companies/reference. (Kaushik)
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