Made in NYC is a pretty cool resource that allows you to browse different manufacturers in NYC. Check out the Made in NYC YouTube channel to see their manufacturing videos. From Made in NYC:
Made In NYC’s mission is to support a vibrant manufacturing sector in New York City. Local manufacturing encourages entrepreneurship and innovation, creates employment opportunities for New York’s extraordinarily diverse workforce and gives the city much of its character and soul.
New York City is home to almost 7,000 small manufacturers employing 65,000 people. They make everything from pianos (Steinway in Queens) and landing gear for spacecraft (Vahl in Brooklyn) to food, fashion, film and furnishings which are the largest sectors within manufacturing. What this incredibly diverse community has in common is a commitment to producing high-quality, high-value products, often customized to meet the needs of particular consumers.