These are the companies that have sponsored Fat Otter events in the past. For sponsors of individual events, please visit the sponsor tab on the specific event.

Flatlander Ultrarunners in Chicagoland

Flatlander Ultrarunners in Chicagoland is a running group based in the Chicago area, which includes "Flatlanders" from all over the Midwest and beyond. The group consists of ultra and trail runners, as well as those aspiring to try ultra and trail running. The group has no dues or fees and is not a for-profit venture. There is no owner or leader - this group exists by and through its members. The only requirement to be a Flatlander is a commitment to crew or pace another member, and to volunteer at one ultra per year.

Camera Case Wireless

Camera Case Wireless is a U.S. Cellular authorized agent and specialize in the sale of all wireless needs including: cell phones, tablets, accessories, home phones, modems, routers and hot spots. Brands we proudly carry include Apple, Samsung, LG, Motorola and ZTE. We also locally sell and install both DirecTV and Dish Network satellite and internet services.

Princeton Tec

Princeton Tec is our preferred lighting solutions company! We stand by their superior headlamps as well as their outstanding customer service.

Backcountry Register

Stay Found! Backcountry Register is a free service to post details of your adventure before heading out in the case that something happens and you need to be located. By registering your trip, you will help give search and rescue the head start that could mean your survival.

Skratch Labs

At Skratch Labs our mission is to provide people with the inspiration, life skills, and products to take better care of themselves and their families.

If you're not completely happy with our products, or our service doesn't make you smile, let us know, we'll make it right.

Road ID

Road ID makes products that save lives and provide priceless peace of mind. We are very grateful for their support throughout the years.

Raw Revolution

Our participants love Raw Revolution bars. The company's mission is "to create irresistible, affordable, convenient superfoods using certified organic, mostly raw ingredients . They’re as good for the environment as they are for you, making the world cleaner and healthier with every bite."