FACISÂ® Levels of Service Screening. This Health Care Screening search has three levels of background screening, and each level providing additional researching capabilities. 1  Level 1 - (OIG/GSA) searches Office of Inspector General (OIG) and General Services Administration (GSA) for excluded parties, as well as other federal agency sources.
SAN FRANCISCO (Fortune) -- As the largest shareholder of Wells Fargo through Berkshire Hathaway (BRKB), Warren Buffett knows the San Francisco bank deeply. He first invested before Wells Fargo was bought by Norwest, where current Wells Chairman Dick Kovacevich was CEO.
1. Cargill Incorporated. Cargill is the largest privately held company in the United States by revenue. Founder W.W. Cargill started the company in 1865 in the grain business. Over the last 150 years it has grown into a massive and diversified conglomerate.he company went public in 1988 and became one of the largest publically-traded PC makers in the world. Dell became one of the largest privately held companies in the country after Michael Dell and private equity firm Silver Lake Partners bought back the publicly traded shares in 2013.