Investing in the right companies can help you significantly grow your savings. To aid you in your search, here are two industry-leading companies that possess strong competitive advantages that could potentially lead to a lifetime of compounding returns for investors.1. Alphabet (Google)Alphabet (GOOG 0.06%) (GOOGL 0.06%) stock hit a new high this month of $200. The stock has delivered excellent returns for investors in recent years, but even with a market cap of nearly $2.5 trillion, there's still a lot of ...