EMH Opinion Sampling, Inc. is a Sacramento, California-based market research data collection service with national clientele. ... Our goal in each engagement is to deliver reliable, meaningful market data to support critical decision-making. We take a unique approach to pre-testing questionnaires, proactively managing samples in the field, using technology to improve accuracy, and reporting results. As other market research data collection companies have waxed and waned over the last decade and a half, EMH has quietly concentrated on quality. We believe the caliber of our clientele demonstrates the caliber of our work. Brand-name market research firms choose EMH for its unique methodology, which is founded on the most effective, conscientious practices in our industry. Since its launch in 1990, EMH has completed 3,300 projects and 1.5 million telephone interviews for 15 primary clients. Because of our consistent focus on quality, we are able to stand behind the data collected in each and every project completed. read more