15 Best AI Stocks to Invest in According to Billionaires

11. Zscaler Inc. (NASDAQ:ZS)

Dollar Value of Billionaire Holdings: $1.35 billion

Number of Billionaire Investors: 21

Zscaler Inc. (NASDAQ:ZS) is one of the best AI stocks to invest in according to billionaires. On March 3, Zscaler and Singtel Singapore signed a Memorandum of Understanding to bring Zscaler Cellular to enterprises across Southeast Asia. This collaboration uses Singtel’s regional connectivity to provide secure, resilient Zero Trust protections for SIM-connected IoT and OT devices. The initiative aims to help organizations secure non-human identities and emerging use cases, such as connected vehicles and smart infrastructure, without the need for device-level agents or changes to existing carrier architecture.

The partnership addresses a rapidly expanding attack surface in Southeast Asia, where the IoT market is projected to grow significantly through 2030. With Singapore currently ranking high globally for observed IoT attacks, the region faces increasing risks of data exposure and operational downtime due to always-on devices and limited patchability. By implementing a Zero Trust approach, the joint solution is designed to provide the necessary visibility and control that traditional security methods often lack in modern industrial and mobile environments.

Technically, Zscaler Cellular allows teams to enforce fine-grained security policies using unique identifiers like IMEI or SIM IMSI to isolate devices and prevent lateral movement. This cloud-delivered security model enables centralized visibility into all cellular traffic while providing least-privilege access for critical infrastructure, retail, and mobility sectors. By combining advanced network connectivity with automated security controls, Singtel and Zscaler Inc. (NASDAQ:ZS) aim to accelerate digital transformation while ensuring that critical devices remain protected at scale.

Zscaler Inc. (NASDAQ:ZS) is a cloud-based internet security platform provider. The company is located in San Jose, California, and was founded in September 2007 by Jay Chaudhry and K. Kailash.