| Allan H. Harvey | Thermophysical Properties of Fluids Group | allan.harvey [at] nist.gov | Fed | Chemical thermodynamics and chemical properties, Thermodynamics, Reference data | 
          
                                                                                        | Timothy Harvey | Facilities Improvement (Boulder) Group |  | Ctr |  | 
          
                                                                                        | Lindsy Harvey | Emergency Services - HQ | lindsy.harvey [at] nist.gov | Ctr |  | 
          
                                                                                        | Jason Harwerth | Heat Transfer and Alternative Energy Systems Group | jason.harwerth [at] nist.gov | Assoc |  | 
          
                                                                                        | Munawar Hasan | Cognition and Collaboration Systems Group | munawar.hasan [at] nist.gov | IntlAssoc |  | 
          
                                                                                        | Syed Hasan | Biomolecular Structure and Function Group |  | Assoc |  | 
          
                                                                                        | Youssef Hashash | Disaster Impact Reduction Office | youssef.hashash [at] nist.gov | Assoc |  | 
          
                                                                                        | Irfan Hasnat | Business Application Development, Support, and Security Group | irfan.hasnat [at] nist.gov | Fed |  | 
          
                                                                                        | Nelson Hastings | Cybersecurity and Privacy Applications Group | nelson.hastings [at] nist.gov | Fed |  | 
          
                                                                                        | Harold Wickes Hatch | Chemical Informatics Group | harold.hatch [at] nist.gov | Fed |  | 
          
                                                                                        | Archita Hati | Time and Frequency - HQ | archita.hati [at] nist.gov | Fed | Electronics, Uncertainty quantification, Time and frequency metrology, Calibration services | 
          
                                                                                        | Tom-Erik Haugen | Neutron Physics Group | tom-erik.haugen [at] nist.gov | Fed | Neutron research, Nuclear physics, Radiation | 
          
                                                                                        | Kandy Hauk | Congressional and Legislative Affairs Office - HQ | kandy.hauk [at] nist.gov | Fed |  | 
          
                                                                                        | Robert Haun | Sources and Detectors Group | robert.haun [at] nist.gov | Assoc |  | 
          
                                                                                        | Thomas Haus | Sensing and Perception Systems Group |  | Assoc |  | 
          
                                                                                        | Ryan Hausen | Disaster Impact Reduction Office | ryan.hausen [at] nist.gov | Assoc |  | 
          
                                                                                        | David Hawes | Security Test, Validation and Measurement Group | david.hawes [at] nist.gov | Fed |  | 
          
                                                                                        | Matthew Hawkins | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | James Hayden | Operations and Maintenance (Gaithersburg) Group | james.hayden [at] nist.gov | Fed |  | 
          
                                                                                        | Daniel Hayes | Gaithersburg Design and Construction - HQ |  | Ctr |  | 
          
                                                                                        | Brandon Hayes | Web Content Development Group | brandon.hayes [at] nist.gov | Fed |  | 
          
                                                                                        | Brandon Hayes | Web Content Development Group | brandon.hayes [at] nist.gov | Fed |  | 
          
                                                                                        | Hugh V. Hayes | Organic Chemical Metrology Group | hugh.hayes [at] nist.gov | Fed |  | 
          
                                                                                        | Ian Haygood | Spin Electronics Group | ian.haygood [at] nist.gov | Fed |  | 
          
                                                                                        | Ross Haynes | Gaithersburg Safety, Health and Environment - HQ | ross.haynes [at] nist.gov | Fed |  | 
          
                                                                                        | Duane Haynie | Facilities Improvement (Boulder) Group |  | Ctr |  | 
          
                                                                                        | Shakeria Glynn | Materials Structure and Data Group | shakeria.glynn [at] nist.gov | Fed |  | 
          
                                                                                        | Zhiyong He | Biomarker and Genomic Sciences Group | zhiyong.he [at] nist.gov | Fed |  | 
          
                                                                                        | Dongxing He | Quantum Information Group | dongxing.he [at] nist.gov | Assoc |  | 
          
                                                                                        | Hua-Jun He | Biomarker and Genomic Sciences Group | hua-jun.he [at] nist.gov | Fed |  | 
          
                                                                                        | Bryana Head | Network Agreements Management - HQ | bryana.head [at] nist.gov | Fed |  | 
          
                                                                                        | Andrew Healy | Emergency Services - HQ |  | Ctr |  | 
          
                                                                                        | Roger Heard | Capital Asset Management and Facilities Planning Group |  | Ctr |  | 
          
                                                                                        | David Heard | Capital Asset Management and Facilities Planning Group |  | Ctr |  | 
          
                                                                                        | Michael Heck | Flammability Reduction Group | michael.heck [at] nist.gov | Fed |  | 
          
                                                                                        | N. Alan Heckert | Statistical Design, Analysis, and Modeling Group | alan.heckert [at] nist.gov | Fed |  | 
          
                                                                                        | David Hedges | Facilities Improvement (Gaithersburg) Group |  | Ctr |  | 
          
                                                                                        | Alexander Hedley | Accounts Payable Group | alexander.hedley [at] nist.gov | Fed |  | 
          
                                                                                        | Randy Heidbrider |  |  | Ctr |  | 
          
                                                                                        | Jonathan Heidemann | Networking Group |  | Ctr |  | 
          
                                                                                        | Joseph Heider | Reactor Operations and Engineering Group |  | Ctr |  | 
          
                                                                                        | Jacob Heidig | Networking Group |  | Ctr |  | 
          
                                                                                        | Robb Heier | Operations Office – HQ | robb.heier [at] chips.gov | Fed |  | 
          
                                                                                        | Edward Heilborn | Facilities Modernization (Gaithersburg) Group | edward.heilborn [at] nist.gov | Ctr |  | 
          
                                                                                        | Edwin J. Heilweil | Fundamental Electrical Measurements Group | edwin.heilweil [at] nist.gov | Assoc |  | 
          
                                                                                        | Craig Richard Heimbach | Neutron Physics Group | craig.heimbach [at] nist.gov | Assoc |  | 
          
                                                                                        | Josh Hein | Network Security Group | josh.hein [at] nist.gov | Fed |  | 
          
                                                                                        | Frank Heinrich | Neutron-Condensed Matter Science Group | frank.heinrich [at] nist.gov | Assoc |  | 
          
                                                                                        | Blair Heiserman | Information Technology Security & Networking - HQ | blair.heiserman [at] nist.gov | Fed |  | 
          
                                                                                        | John Heisler | Operations Engineering Group |  | Ctr |  |