MINNEAPOLIS--(BUSINESS WIRE)--Nortech Systems Incorporated (Nasdaq: NSYS), a leading provider of full-service electronics manufacturing services (EMS), today reported net sales of $31.4 million for the fourth quarter ended December 31, 2015, a three percent increase over net sales of $30.4 million for the fourth quarter of 2014. Net sales for the 2015 fiscal year ended December 31 rose three percent, to $115.2 million, compared with $112.0 million reported for fiscal 2014.