Marco Giannini's Los Angeles-based  Dogswell LLC  is poised to hit sales of US$20 million this year, which is more than double its sales from 2007, according to a story from  Reuters .

Amid the struggling US economy, the  American Pet Products Association  says the US pet industry grew to about US$43.2 billion in 2008, up from US$34.4 billion in 2004, with sales for 2009 expected to hit US$45.4 billion.

The key to success in the industry? Giannini says for his company, quality control, knowing the supply chain, product testing and good customer service all factor in.