For over 30 years, we have supported the product testing requirements of the nation's computer, fiber optics, telecommunications, medical, food, aerospace/defense, and other high-tech electronic industries. Quanta Laboratories is the largest and most experienced independent environmental testing laboratory in Northern California and a recognized provider of environmental stress screening (ESS/HALT/HASS), vibration, shock, temperature/humidity/altitude testing, NEBS/seismic testing, lithium ion testing, engineered test services and special tests.