Deer Park

If you're familiar with bottled water brands, you'll notice that it's very popular for companies who draw their water from their adjacent municipal tap water to say that it's genuinely natural spring water. Deer Park is unique in that its claim, "100% Natural Spring Water," is accurate.

Beginning with a single spring in the Appalachian Mountains, the enterprise has since expanded to 13 more springs spread across four states. Their products include flavored and unflavored bottled water that is free of sugars and color chemicals.

Deer Park is particularly unusual in that it has been in the bottled water business for a very long time. Deer Park was created in 1873, while most other major companies were founded in the 1990s.

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Headquarters: Deer Park, Maryland

Gross annual sales: $58.1 million