Case Study: Renewi secures email for 7,000 employees and safeguards business continuity with Mimecast S1

Renewi has 7000 employees securely emailing

Renewi, a waste‑to‑product company processing 14 million tonnes of waste across nine countries, needed to secure email access for its 7,000 employees — including many mobile “blue‑collar” workers — after a major phishing breach showed how ransomware or account takeovers could disrupt waste collection and business continuity. Compliance & Information Security Manager Nick Birjmohun prioritized stronger email protection beyond native Office 365 controls to prevent future incidents that could halt operations.

Working with partner Cegeka, Renewi selected Mimecast S1 following a proof‑of‑concept and rolled it out first to 5,000 users, then to the remaining staff while adding multi‑factor authentication. The deployment went smoothly with ongoing support from Mimecast’s Customer Success Manager; results include full email coverage for all employees, a significant drop in malicious emails, and a substantial decrease in helpdesk notifications, strengthening Renewi’s resilience against phishing and ransomware.

Renewi

Nick Birjmohun

Compliance & Information Security Manager