How to find leads for IT Services

Hello every one,
First of all i would like to thank for viewing the thread,
Btw
My self Saegar,I have started a IT Service Based Startup along with my partner.
We are providing services like
Website design & Devleopment,
Mobile Applications,
Graphic Design and
Content Writing.

But all i want now is a Good Clients to promote my Business,
Could anyone here tell me the way to find the potential clients for my services??
Looking forward to your Valuable responses.

regards,
Saegar!