Even if you are not a couponer, please think about this. Maybe you don't need the money. But if you could save 10 or 20 bucks using coupons, you could give the savings away to groups that help animals.
So Delicious (Turtle Mountain) dairy free yogurts, ice cream, etc.
Lightlife (from time to time)
Wholly Guacamole (You'll probably have to print the coupon right away, or it will expire.)
Newmans Own (from time to time)
Cascadian Farm You'll need to sign up for their newsletter.
Seventh Generation Not vegan food, but a maker of cruelty free cleaning products. Their newsletter is excellent.
Clif bar Sign up for newsletter; be sure to check the box for receiving coupons.
Seeds of Change
Odwalla You'll need to "like" them on Facebook.
Mambo Sprouts has several coupons for natural and organic food products. This is worth signing up for their newsletter. You can also get printed coupon booklets at some local stores.
Mom's Organic Market has e-coupons. If this link doesn't work, just look for "E-Coupons" on their site.
McCann's Irish Oatmeal
Lundberg Family Farms
Pacific Natural Foods
Whole Foods Market prints a newsletter every two months, with coupons in the center. The coupons must be used at Whole Foods. You can view the coupons online, and print them. But if you forget, you can get a printed newsletter at the customer service desk in the store.
Nasoya - you'll need to register for Tofu U.