Hercules Plc engages in general construction and civil engineering businesses in the United Kingdom. The company operates through three segments: Labour Supply, Civil Projects, and Other Activities. It offers labor supply services through its Personnel Management System and Hercules Recruitment applications; civil engineering solutions for utility companies; and site operations and management vacancies services for white collar jobs. The company also provides static/mobile security officers, temporary site security capabilities and systems comprising fixed cameras and camera towers; a range of construction courses; and health screening services, including safety critical medicals, alcohol and drug testing, blood pressure measurements, cholesterol screenings, flu vaccinations, hand arm vibration testing, diabetes checks, height, weight and BMI evaluations, vision tests, hearing tests, lung function tests/peak flow assessments, and mental health check-ups. It serves general civil, highways, utilities, power and energy, and railways sectors. The company was formerly known as Hercules Site Services Plc and changed its name to Hercules Plc in May 2025. The company was incorporated in 2008 and is headquartered in Cirencester, the United Kingdom.