Hardware Error Recovery System - Sperry UNIVAC
Hawaiian Electric Renewable Systems, Inc. (EFIS)
Health Education Research Service - Department of Health and Human Services
Health Evaluation and Referral Service
Heart and Estrogen/Progestin Replacement Study - Medicine
Hemorrhagic Fever with Renal Syndrome - Medicine (EDAA)
Heritage Financial Services, Inc. - NASDAQ symbol (NQ)
Herself
High-Energy-Range Spectrometer - Instrumentation
Higher Education Resource Services (EA)
Highway Economic Requirements System - FHWA (TAG)
Home Economics Reading Service - Recipe clipping service
Home Educational and Recreational System (SAUS)
Home Emergency Response System
Home Energy Rating System - Thermal technology
Home Energy Rating Systems (NREL)
Human Ecology Research Service (SAUS)
Hyperion Energy Recovery System (GNE)
Hysterectomy Educational Resources and Services Foundation (EA)
National Heart Education Research Society (EA)
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