Formerly dba Mass technologies, MassTech, Inc. operates as an analytical instrumentation and technology company developing atmospheric pressure matrix assisted laser desorption/ionization (AP-MALDI) and mass spectrometry related products for equipment manufacturers. The company also offers AP/MALDI pulsed dynamic focusing (PDF) ion sources for linear ion trap and hybrid LIT mass spectrometers to enhance sensitivity and reliability of the system. The firm's products are used in various applications ranging from proteomics to drug discovery fields that include bacteria, DIOS plates, DNA/PNA/RNA, lipids, oligosaccharides, phosphopeptides, proteomics, reproducibility, sensitivity, small molecules, and synthetic polymers. Widely used in the biopharmaceutical, drug discovery and biotechnology fields, MassTech's AP/MALDI ion source product has been adapted to commercial mass spectrometers from major equipment manufacturers: Agilent (NYSE: A), Applied Biosystems/MDS SCIEX (NYSE: ABI; NYSE: MDZ), Thermo Finnigan (NYSE: TMO), Waters/Micromass (NYSE: WAT), Bruker (NSDQ: BRKR) and JEOL, for both OEM and direct sales around the world. MassTech Inc. manufactures the AP/MALDI ion source, and conducts on-going research and development in support of the AP/MALDI product line. MassTech is a subsidiary of Science & Engineering Services, Inc. (http://www.sesius.com), Columbia, Maryland USA, and shares SESI's manufacturing, engineering and administrative resources.