In the CentralNic reseller system we have two different Contact types, O- like Organisation and P- like Personal.
O-Handles have no first- and lastname, only the organization value that indicates the registrant.
O-Handles can only be used as registrant (ownercontact0) and not for all TLD's as some registries require a name.
P-Handles can also contain an organization value, but also a contact person like the CEO or any responsible person for this domain name within the organization.
If no organization is given, the handle would reflect a private person.
Please note that once an organization value is provided, the contact will be treated as an organization and may be partially displayed in Whois, depending on the registry’s terms and conditions regarding GDPR.