Retlif Testing Laboratories, founded in 1978, is now celebrating its 30th anniversary. Providing EMI and environmental simulation testing and engineering services, Retlif maintains three full-service accredited laboratories located in Ronkonkoma, NY; Goffstown, NH; and Harleysville, PA. Retlif recently completed a one-million dollar expansion of its Ronkonkoma headquarters and a year-long series of activities are being planned to mark the occasion—including open houses, customer appreciation lunches, and a golf outing.View Retlif’s history online.