BIO-key International (NASDAQ:BKYI) and Echelon (NASDAQ:ELON) are both computer and technology companies, but which is the better investment? We will contrast the two companies based on the strength of their valuation, dividends, institutional ownership, risk, earnings, profitability and analyst recommendations. Profitability This table compares BIO-key International and Echelon?s net margins, return on equity and return [?]