Here's a list of some brands that have sold out to big companies. It's by no means a complete list. Unfortunately, there's big companies that buy up little awesome companies and ruin them every day!

GeneralMills now owns, 
Cascadian Farm 
Annie's
Taste Good
Organic Golden 
Larabar
Food Should Taste So Good
Epic Provisions 
RxBar

Boulder Brands now owns,
Earth Balance

Hormel now owns, 
Applegate Farms
Justin's 

Hain Celestial/Heinz now owns, 
Garden of Eatin'
Spectrum Organics
Earths Best
Arrowhead Mills
Health Valley
Imagine/Rice/Soy Dream
Bearitos
Breadshop
Casbah
DeBole's
Ella's Kitchen
Maranatha
Nile Spice
SunSpire
Westbrae
Westsoy
Mountain Sun
Rudi's Organic Bakery 

Clorox now owns,
Burt's Bees
Nutranext (natural vitamins)
Renew life (probiotics)

WhiteWave now owns,
Horizon
Earthbound Farms 

Dean now owns,
Horizon Organic 

Hershey now owns,
Dagoba Chocolate

Cocoa Cola now owns,
Honest Tea
Odwalla
Energy Brands (Glacéau)
Zico
Smart water

Pinnacle now owns,
Udi's 

Flowers Food/Wonder Bread now owns,
Dave's Killer Bread

Kellogg's now owns,
Morning Star
Kaski
Bear Naked
Natural Touch 

Kraft now owns,
Boca
Back to Nature
Green & Blacks

Colgate/Palmolive now owns,
Tom's of Maine

Dannon/Dannon now owns,
Stonyfield Organic Yogurt
Happy Baby Organic
Happy Family 
Brown Cow

Pepsi now owns,
Naked Juice
Sabra Hummus
Kevita Kombucha 

Post Foods now owns,
Erewhon
Attune 

Proctor and Gamble now owns,
New Chapter
Native (yup!)

Nestle now owns,
Garden of Life
Pria Grain Essentials 
Gerber Organic Baby Food
PowerBar
Sweet Earth 
Vital Proteins 

Snyder's now owns,
Late July

ConAgra now owns,
Lightlife
PAM Organic 
Orville Redenbacher's Organic 
Alexia Foods
Blake's Natural Foods 

Anheuser -Busch now owns,
Stone Mill
Wild Hop
Goose Island Brewery 

Hormel now owns,
Applegate Farms 
Wholly Guacamole 

Campbell Soup now owns,
Bolthouse
Plum Organic Baby Food
Prego/Ragu Organic
Swanson's Organic
V8 Organic
Wolfgang Puck Soup
Garden Fresh Gourmet

Mondelez International now owns,
Enjoy Life Foods

Post/Hearthside now owns,
Willamette Valley Granola
Peace Cereal
Golden Temple

Hillshire Brands now owns,
Aidells Sausages
 
Hillshire Farms now owns,
Van's

M&M Mars now owns, 
Seeds of Change 

Cadbury/Schweppes now owns,
Nantucket Nectars Organics 

J. M. Smucker's now owns,
Millstone
Knudsen 

Unilever now owns,
Seventh Generation
Schmidt's Naturals 
The Laundress (eco-friendly cleaning products)
Tazo Tea

SC Johnson now owns,
Recover
Method

L'Oreal now owns,
The Body Shop