| Mahesh Mani | Program Operations - HQ | mahesh.n.mani [at] nist.gov | Fed |  | 
          
                                                                                        | Jeffrey A. Manion | Chemical Process and Nuclear Measurements Group | jeffrey.manion [at] nist.gov | Fed |  | 
          
                                                                                        | Charles Manion | Smart Connected Manufacturing Systems Group | charles.manion [at] nist.gov | Fed |  | 
          
                                                                                        | John Manley | Fundamental Electrical Measurements Group | john.p.manley [at] nist.gov | Fed |  | 
          
                                                                                        | Terese Manley | Public Safety Communications Research Division - HQ | terese.manley [at] nist.gov | Fed |  | 
          
                                                                                        | Jacqueline L. Mann | Inorganic Chemical Metrology Group | jacqueline.mann [at] nist.gov | Fed | Metrology, Amount of substance, Reference materials | 
          
                                                                                        | Haik Manna | Facilities Improvement (Gaithersburg) Group | haik.manna [at] nist.gov | Ctr |  | 
          
                                                                                        | Roland Manning | Materials Management (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Clark Manning | Security Test, Validation and Measurement Group | clark.manning [at] nist.gov | Ctr |  | 
          
                                                                                        | Jeffrey Manns | Networking Group |  | Ctr |  | 
          
                                                                                        | John Manouelian | Facilities Services Division - HQ | john.manouelian [at] nist.gov | Assoc |  | 
          
                                                                                        | Ishiaka Mansaray | Nanostructure Fabrication and Measurement Group | ishiaka.mansaray [at] nist.gov | Fed |  | 
          
                                                                                        | Elisabeth Mansfield | Nanoscale Reliability Group | elisabeth.mansfield [at] nist.gov | Fed | Analytical chemistry, Electronics, Materials, Nanotechnology, Standards | 
          
                                                                                        | Gorgin Mansourian | Disaster Impact Reduction Office | gorgin.mansourian [at] nist.gov | Assoc |  | 
          
                                                                                        | Paritosh Manurkar | Shared Spectrum Metrology Group | paritosh.manurkar [at] nist.gov | Assoc |  | 
          
                                                                                        | Keith Manville | National Cybersecurity Center of Excellence | keith.manville [at] nist.gov | Ctr |  | 
          
                                                                                        | Gabriel Manzano | RF Technology Division - HQ | gabriel.manzano [at] nist.gov | Fed |  | 
          
                                                                                        | Aiko Manzueta | Accounts Payable Group | aiko.manzueta [at] nist.gov | Fed |  | 
          
                                                                                        | David Mar | Earthquake Engineering Group |  | Assoc |  | 
          
                                                                                        | Samantha Maragh | Biomarker and Genomic Sciences Group | samantha.maragh [at] nist.gov | Fed |  | 
          
                                                                                        | Jabir M. V. | Transformational Networks and Services Group | jabir.marakkarakathvadakkepurayil [at] nist.gov | IntlAssoc |  | 
          
                                                                                        | Alexander Maranghides | Wildland Urban Interface Fire Group | alexander.maranghides [at] nist.gov | Assoc |  | 
          
                                                                                        | Brian B. Maranville | Neutron-Condensed Matter Science Group | brian.maranville [at] nist.gov | Fed |  | 
          
                                                                                        | Vladimir Marbukh | Mathematical Analysis and Modeling Group | vladimir.marbukh [at] nist.gov | Fed |  | 
          
                                                                                        | Janneth Marcelo | National Voluntary Laboratory Accreditation Program (NVLAP) | janneth.marcelo [at] nist.gov | Fed | Accreditation, Conformity assessment | 
          
                                                                                        | Milson Marcia Chicas | Facilities Improvement (Gaithersburg) Group |  | IntlCtr |  | 
          
                                                                                        | Antonio Marcolin | Safety, Health and Compliance Group | antonio.marcolin [at] nist.gov | Ctr |  | 
          
                                                                                        | Sorin Marcu | Engineering Research Support Group | sorin.marcu [at] nist.gov | Fed |  | 
          
                                                                                        | Sougata Mardanya | Neutron-Condensed Matter Science Group | sougata.mardanya [at] nist.gov | IntlAssoc |  | 
          
                                                                                        | Baruch Margulis | Ion Storage Group | baruch.margulis [at] nist.gov | IntlAssoc |  | 
          
                                                                                        | Frank Mari | Chemical Sciences Division - HQ | frank.mari [at] nist.gov | Fed |  | 
          
                                                                                        | Olivier Marie-Rose | The Material Measurement Laboratory Office of Operations Group | olivier.marierose [at] nist.gov | Assoc |  | 
          
                                                                                        | Carlos Marin | Operations and Maintenance (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | John P. Marino | Biomolecular Structure and Function Group | john.marino [at] nist.gov | Fed | Bioscience, Biomanufacturing, Engineering / synthetic biology, Biological physics, Spectroscopy | 
          
                                                                                        | Rocio Marino-Crumley | Financial Assistance Agreements Management Office – HQ | rocio.marino-crumley [at] nist.gov | Fed |  | 
          
                                                                                        | Anthony F. Marlow | Inorganic Chemical Metrology Group | anthony.marlow [at] nist.gov | Assoc |  | 
          
                                                                                        | Shannon Shirley | NIST Center for Neutron Research - HQ | shannon.marlowe [at] nist.gov | Fed |  | 
          
                                                                                        | John Marlowe | Operations and Maintenance (Gaithersburg) Group | john.marlowe [at] nist.gov | Fed |  | 
          
                                                                                        | Luis Marquez | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Jose Marquina | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Kristopher Marquina Moreno | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Fabrizio Marra | Electromagnetic Fields Group |  | IntlAssoc |  | 
          
                                                                                        | Karla Marrero-Jimenez | Site Services Group |  | Ctr |  | 
          
                                                                                        | Jeffrey Marron | Cybersecurity and Privacy Applications Group | jeffrey.marron [at] nist.gov | Fed | Cybersecurity and privacy, Risk management, Internet of Things (IoT) | 
          
                                                                                        | Julia Marrs | Special Programs Office-HQ | julia.marrs [at] nist.gov | Fed |  | 
          
                                                                                        | Brendan Marsh | Quantum Physics - HQ | brendan.marsh [at] nist.gov | Fed |  | 
          
                                                                                        | Philbert Marsh | Advanced Electronics Group |  | Assoc |  | 
          
                                                                                        | Kenneth Marshall | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Karen Marshall | Image Group | karen.marshall [at] nist.gov | Fed |  | 
          
                                                                                        | Daniel Marshall | Capital Asset Management and Facilities Planning Group |  | Ctr |  |