Looking for a Web Design Company in Sydney

I need to find a good web design company in Sydney. I’m new in town, new business, new life. I need a great website design to help me fast-forward an idea I’ve had cooking for several years. I’m especially looking for someone/a company with great SEO capacity and ideas about social marketing. Looking for good advice, along with an attractively designed, professional site. Need to be up and running in a month, tops. Can anyone make a suggestion to a good web designer in Sydney? Thanks to Process Systems Services.