Psychemedics Corp., an Acton-based company that tests hair for evidence of drug abuse, has been listed in Fortune Small Business Magazine’s 2007 list of the 100 fastest growing small companies in the U.S.
The Fortune list is based on companies that claim less than $200 million in revenue and a stock price greater than $1. The companies are ranked by growth in earnings, revenue and stock price over three years.
Raymond C. Kubacki, Psychemedics president, said the company’s growth is the result of increasing acceptance of its drug testing technology.