I'd say either #10 or #11 (the two at the top left). They're clean, bright, simple, and direct. The blue color has a nice, clean feel to it. The other colors feel too dingy to me for a greenish enterprise. All the logos on the right side strike me as too busy. Some are also a bit obvious, with the birds and grass. Actually, at first glance, the white thing kind of looks like an egg with feet.