 Avantor NYSE:AVTR and Astrotech NASDAQ:ASTC are both medical companies, but which is the better business? We will contrast the two businesses based on the strength of their dividends, analyst recommendations, risk, valuation, profitability, institutional ownership and earnings. Profitability This table compares Avantor and Astrotechs net margins, return on equity and return on assets. Net Margins ... 