Global human resources consulting company Mercer has acquired the business of Sirota Consulting LLC, a global provider of employee engagement solutions through organizational assessments, surveys, technology and analytics. Sirota, a well-established global brand with more than 40 years of experience, conducts surveys with more than 1 million employees annually across 130 countries and 80 languages. “Employee engagement is one of the most important human capital issues facing business leaders today, and the acquisition of Sirota strengthens our consulting insights by ensuring our clients have access to leading expertise and data-driven employee survey research programs,” said Ilya Bonic, Mercer president of Career. Mercer’s five Iowa offices include an operations center in Urbandale.