Case Study: Tokio Marine HCC achieves full-stack AWS observability and sub-second cross-region latency with Sumo Logic

Tokio Marine uses full-stack observability for cloud migration success

Tokio Marine HCC, a multinational specialty insurer active in around 180 countries and underwriting 100+ classes of insurance, embarked on a digital transformation to modernize a legacy monolithic application. Their move to containerize workloads and migrate from on‑prem VMs, SQL Server and Windows to AWS EKS, PostgreSQL and Linux aimed to improve user experience, data residency and cost control—but introduced multi-account, multi-region observability and troubleshooting challenges.

They adopted the Sumo Logic Continuous Intelligence Platform to centralize logs, metrics and traces and provide a single pane of glass for full‑stack AWS observability, security controls, and faster triage. As a result, TMHCC cut cross‑region latency from seven seconds to sub‑second, accelerated incident investigation and feature delivery, and gained actionable insights that smoothed microservices operations and lifted lead generation.

Tokio Marine HCC

Shruthi Anantharamu

Senior DevSecOps & Cloud Solutions Architect