D.Marchiori are based in Aprilia, just south of Rome in Italy, conveniently close to the international airports of Fiumicino and Ciampino, both only some 30 minutes away.

The Plant is a large purpose built facility and all the activities associated with design, development and manufacture of the Air Data Test Sets and Aircraft Ground Support Equipment are carried out here.

The precision and accuracy of DMA Air Data Test Sets and Precision Barometric Indicators is supported by a first class calibration laboratory, enabling stringent accuracy requirements such as RVSM to be achieved. The DMA laboratory is accredited by Accredia according to EN-ISO 17025 rules. March 2018 - according to recent laboratory accreditation updates D.Marchiori has achieved improved test results as follows: View calibration table.

DMA is ISO 9001-2015 certified for quality assurance.