public class StartUp {

    public void Configuration(IAppBuilder app) {
        var builder = new ContainerBuilder();

        //Note: Initialize / register the Metadata Service that can bring the tenant details from the corresponding store
        builder.RegisterType<TenantMetadataService>().As<ITenantMetadataService>();

        //Note: This helps you in accessing the TenantMetadata from any constructor going forward after the below registry
        builder.Register(ti => TenantMetadata.GetTenantMetadataFromRequest()).InstancePerRequest();

        //TODO: Register the various services / controllers etc which may require the tenant details here
    }

}

public class TenantMetadata {

    public Guid TenantId { get;set; }
    public Uri TenantUrl { get;set; }
    public string TenantName { get;set; }

    public static TenantMetadata GetTenantMetadataFromRequest() {

        var context = HttpContext.Current;

        //TODO: If you have any header like TenantId coming from the request, you can read and use it
        var tenantIdFromRequestHeader = "";

        //TODO: There will be a lazy cache that keeps building the data as new tenant's login or use the application
        if(TenantCache.Contains(...))return TenantCache[Key];

        //TODO: Do a look-up from the above step and then construct the metadata
        var tenantMetadata = metadataSvc.GetTenantMetadata(...);
        //TODO: If the data match does not happen from the Step2, build the cache and then return the value.
        TenantCache.Add(key,tenantMetadata);
        return tenantMetadata;
    }
}