Case Study: Leading Manufacturing Company achieves a 4% reduction in healthcare cost trend with Castlight Health

Leading manufacturer reduces healthcare cost trend

A leading North American manufacturer faced rising healthcare costs and an unwieldy benefits structure—hundreds of medical plans for union and non‑union employees and retirees. The company’s goal was to reduce cost and complexity by consolidating plans (to four for non‑union employees) and launching a consumer‑directed health plan (CDHP) linked to HSAs, without sacrificing quality or employee satisfaction.

The company deployed Castlight’s health benefits platform, integrating years of claims, pricing, and clinical data, plus targeted communications and incentives to drive adoption. Outcomes included exceeding the household registration goal (41% vs. a 35% target), users who searched for advanced imaging paying 26% less, a 4% decrease in cost trend that avoided nearly $500,000, growing HSA balances, and improved price transparency and provider choice for employees.