Case Study
John Holland Cuts Networking Costs by 50% with Zero Trust Security
John Holland modernized its cloud-first infrastructure by deploying the Zscaler Zero Trust Exchange to secure more than 6,000 employees and contractors across over 120 project locations. Replacing its legacy MPLS network and hundreds of firewall appliances, the company completed its zero trust rollout in just one week while reducing networking costs by 50%. Zscaler Internet Access (ZIA) enabled direct, secure connectivity to SaaS applications without backhauling traffic through data centers, improving application performance and operational efficiency. In just three months, the platform processed more than 400 TB of traffic, prevented nearly 99 million policy violations, and blocked over 122,000 cyber threats. The transformation strengthened John Holland’s security posture, simplified IT m
