How do I start out with clothing design?

I design clothing but I don't want to go into industry, how do I get my foot into the business, or begin to design for bigger companies, maybe sell my designs to labels or other brand names?

Try getting smaller business first. Try winning this kind of contests: http://www.contestcreative.com/news.php?extend.37

They give you money for each design. Great for your portfolio for bigger companies.

Good luck.