Case Study: Aggreko achieves 67% employee registration and significant healthcare cost savings with Castlight Health

Aggreko powers informed healthcare decision-making

Aggreko, a global leader in modular, mobile power and temperature-control solutions with roughly 8,000 employees, introduced a full‑replacement consumer‑directed health plan (CDHP) for its U.S. workforce and needed employees to make better, data‑driven healthcare choices. Leadership recognized that without clear visibility into cost and quality, employees couldn’t effectively navigate the new plan.

Aggreko adopted Castlight’s health benefits platform as a single, intuitive “benefits toolbox,” integrated third‑party programs, and used sophisticated segmentation and targeted marketing to drive adoption. Within a week it exceeded a 40% registration goal and now has 67% household registration; Castlight users saw 53% lower advanced imaging costs and 38% lower lab costs versus non‑searchers, reduced ER overuse, and increased employee satisfaction and retention.

Aggreko

Luke Prettol

North American Human Capital Manager