SharePoint Site Plan

ClaudeV2240 Microsoft no longer recommends subsites and will eventually deprecate them. It would be better for you to use a hub site and associated sites approach. The top level hub site would be your main company site. Then each company site would be a separate site but associated to the top level site and would automatically assume a common color theme across all sites in the hub based on the theme of the top level site. This approach makes permissioning easier, it keeps the different company sites separate but still part of the main company, it allows searching across all the sites in the hub, and it allows for news to flow up from each site to the top level site if you want to do that - we do that for our intranet which has a hub/associated sites approach.

Come back with any questions about this.

Rob
Los Gallardos
Intranet, SharePoint and Power Platform Manager (and classic 1967 Morris Traveller driver)