Pictured is the Farmshelf at Great Northern Food Hall at Grand Central Terminal. In this week's Small Business Spotlight video, which you can listen to here on-demand, co-founder Suma Reddy tells Joe Connolly how she and her fellow co-founders were researching hydroponic technology, the method of growing plants without soil, when they found market space to start a company. Today, they have locations in SoHo, Grand Central Terminal and Washington, DC, among others. You can watch all of our Small Business Spotlight videos at WCBS880.com/Spotlight.