Psychemedics Corp. of Acton reported a 20-percent increase in revenue and 34-percent jump in net profit for 2011.
The company, which makes drug-testing technology, also announced its 62nd consecutive quarterly dividend, increasing the dividend to 15 cents per share in the fourth quarter of last year.
Revenue for the year came in at $24.1 million, while net profit was $3.5 million.
