Case Study: Quest Diagnostics achieves 140% ROI and faster, more accurate month-end closes with BlackLine

Quest Diagnostics deployed BlackLine to streamline and modernize its accounting processes

Quest Diagnostics, a leading clinical laboratory services company, faced a time- and labor-intensive month-end close process built on paper and Excel. The manual approach made it hard to track account reconciliations, scale for acquisitions, and support audits, creating inefficiencies and risk across its accounting teams.

Quest implemented BlackLine’s cloud SaaS platform for its prebuilt workflows, role-based controls, and deep reconciliation functionality, using internal resources for the rollout. The solution centralized financial data, sped reconciliations, improved visibility and role clarity, enabled multiple acquisitions without adding staff, and delivered strong financial results — 140% ROI, ~9.6-month payback (NPV ≈ $510K, 3‑yr IRR 122%).

Quest Diagnostics