Yes. PHP Live! License Agreement is per company. One PHP Live! License allows deployment of the system on multiple websites you own and operate, provided the domains are owned by the company, the site products/services offered is that of the company and the operators who will be using the PHP Live! system is directly associated with the company.
For situations where an agency creates and manages client websites, each client will need to purchase a valid PHP Live! License because the site content and products/services offered is of a different company. Please contact firstname.lastname@example.org for additional License discount code. To receive additional License discount code, you must already own a valid PHP Live! License.