Use the submit form at http://www.dmoz.org/add.html Follow the guidelines, submit and forget about it. There are so many other things to do to get your site on the SERP's.
Your site explains that one of the services you offer is "Search Engine Optimization & Submission". You also claim to be a "leading IT services company" If you need to ask a question like this you are doing your clients an extreme disservice. If this is what a leading “IT service company†offers their client I shudder to think what a inferior company does.
(more smilies needed) That is why they are leading company, like most surfer they never heard of DMOZ until now.
(more smilies needed) I agree with Ivan's statement on this. I also hope, for the OPs sake none of his clients stumble across this thread Though whether or not you are lying to your customers should not be an issue on getting listed unless those lies are incomplete...I mean a page full of fabrication that is complete and unique shouldbe able to at least be listed here: Business: Textiles and Nonwovens: Geotechnical: Fabrication and Installation