Case Study: Cornerstone, the UK’s leading mobile infrastructure company, achieves legal spend transparency and 25–30% legal team time savings with Apperio

Cornerstone - Customer Case Study

Cornerstone, the UK’s leading mobile infrastructure services company with over 20,000 sites, faced a high volume of legal matters and no clear way to see or control where external law‑firm spend was coming from. To address this, Cornerstone implemented Apperio’s legal spend management platform to provide real‑time visibility across thousands of instructions and support data‑driven reporting for the business.

Apperio delivered dashboards, analytics and custom reporting that let Cornerstone track matters against budgets, enforce billing guidelines and drive better law‑firm behaviour. The platform reduced administrative work, enabled proactive collaboration with counsel and strengthened cost governance—Apperio helped save an estimated 25–30% of the legal team’s time while improving budget control and negotiation insight.

Cornerstone

Phil Warren

Head of Legal and Compliance