EHS software and HSE software usually describe the same category of tools, but the term order differs by region and industry. EHS means Environment, Health, and Safety, while HSE means Health, Safety, and Environment. In the United States, “EHS” is more common in corporate compliance, manufacturing, construction, and occupational safety contexts. “HSE” is often used in oil and gas, energy, and international operations. The practical difference is usually branding and terminology, not core functionality. Safety managers should compare actual features, workflows, reporting, and regulatory fit rather than choosing based only on the acronym.