LABORATOIRE NATIONAL D'ESSAI ni mtoa ya bidhaa na huduma kama vile viwanda washauri,vyeti huduma kwa ajili ya vifaa vya matibabu,calibration huduma, radiometry na photometry,calibration huduma, fiber optics,calibration huduma, taximeters,kupima huduma, vumbi kabati,kupima huduma, sekta ya samani,kupima huduma, toys na michezo,hisia uchambuzi na tathmini ya huduma,microwave utafiti huduma,udhibiti wa ubora na vyeti.