Our team of seasoned engineers and human factors specialists excels in analyzing incidents across diverse scenarios, from motor vehicle accidents to workplace safety and consumer products. We meticulously assess key factors such as vision, hearing, ergonomics, and cognitive functions like attention, perception and reaction times, communication, and decision-making.
ESi’s understanding of human factors and usability is applied to our work in evaluating consumer products, machines and equipment, designing effective warnings and instructions, and conducting robust risk assessments. Our human factors analysis provides a deep understanding of how people interact with environments, products, and processes. This focus enables us to evaluate how human capabilities and limitations contribute to accidents and injuries.
We work with government agencies, industry organizations, large legal firms, and all kinds of businesses to uncover the root causes of human errors and their impact on accidents of all kinds. By leveraging advanced technologies—including motion capture systems, high-resolution video analysis, and advanced computer modeling—we provide precise evaluations of human interactions.
This comprehensive approach equips our clients with the knowledge needed to improve product designs, implement effective warnings, and conduct robust risk assessments, ultimately leading to safer outcomes and informed decision-making.


Anne Mathias
Director, Principal
ESi Human Factors Capabilities
- Human Reliability Analysis
- Error Analysis
- Warning Labels and Instruction Manuals
- Perception, Vision and Conspicuity Analysis
- Transportation Accident Analysis
- Commercial Product Design, Testing and Analysis
- Anthropometry
- Risk Assessment
- Decision Making
- Usability Testing
- Training Programs
- Human Kinematics and Gait Analysis
- Slip, Trip, and Fall Analysis
- Statistics and Experiment Design