Joe Tenebruso's "Tier 1 Portfolio" has been beating the market handily since its inception. In this series of interviews, Joe talks about what makes a Tier 1 company and which stocks make the cut.

At Tier 1 Investments, I seek out and invest in elite businesses. These include companies with the most valuable brands, best management, superior products and services, and strongest competitive advantages. I call these businesses Tier 1 enterprises.

In 1999, Tom & David Gardner wrote Rule Breakers, Rule Makers, which laid out the foundations of Foolish investing. At Tier 1, my favorite companies are the ones that both make and break the rules.