One suggestion, maybe for a later iteration, is to improve the description of the companies and the "similar companies".
For example, I know what Zscaler is but its description is somewhat of a word salad. "Zscaler, Inc. operates as a cloud security company worldwide. The company offers Zscaler Internet Access solution that provides users, workloads, IoT, and OT devices secure access to externally managed applications, including software-as-a-service (SaaS) applications and internet destinations; and Zscaler Private Access solution, which is designed to provide access to managed applications hosted internally in data centers, and private or public clouds."
Personally, I would write a two sentence description and provide a link to the official company About Us page. For Zscaler, I would write something like: Headquartered in San Jose, California USA, Zscaler is a cloud security company. Its products include a Zscaler Secure Internet Access solution, Private Access solution, and Digital Experience solution. For further reading, refer to xxx.
Because the descriptions are a bit vague, the "similar companies" for Zscaler include: Microsoft and Oracle which is a bit questionable. I appreciate the comparison to Palantir, Crowdstrike, and Palo Alto Networks.
The similar companies is purely industry segmentation, which can never be 100% correct. Different sites use different providers for segmentation and this is the best one I settled on.
