Damien<p><span class="h-card" translate="no"><a href="https://infosec.exchange/@paco" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>paco</span></a></span> there's a bunch of other billing systems you might like to consider as well:<br><a href="https://layer8.space/tags/Blesta" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Blesta</span></a> <a href="https://layer8.space/tags/FOSSBilling" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FOSSBilling</span></a> <a href="https://layer8.space/tags/HostBill" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HostBill</span></a> <a href="https://layer8.space/tags/ClientExec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientExec</span></a></p><p>On the control panel side, there's also <a href="https://layer8.space/tags/DirectAdmin" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DirectAdmin</span></a></p><p>Plesk and cPanel are by far the most mature panels. Both have near feature parity and are owned/developed by the same company (WebPros) - who also own WHMCS. In theory that should lead to the tightest integration, but one of the others might suit your specific needs better - take a close look before rushing in!</p>