That's not a big question, the US does have a lot of large, effective consumer lobbying groups. Most of the consumer protections and product labeling the US has, is thanks to them, going back more than a century. The US has a consumer lobbying group for pretty much every topic and demographic you can name.
"NRA receives 350M/yr in 2014"
"NRA has received, in total, 80M from individual donors in the past 13 years"
"NRA received 22M from individual donors in 2014"
22M of 350M revenue means that individual donors are very small.
Where does the other 330M per year come from, if not individual donors?
The NRA (I’m a member, and my wife) has at > 4M members. It’s $30/year, so that is $120M/year just in membership fees. You are only counting donations, which are separate.
Suggest you read John Lott to see how the media and manipulates gun statistics.
https://en.wikipedia.org/wiki/National_Consumers_League
http://www.fraud.org/
https://en.wikipedia.org/wiki/Center_for_Science_in_the_Publ...
https://en.wikipedia.org/wiki/Consumer_Federation_of_America
https://en.wikipedia.org/wiki/Consumer_Watchdog
https://en.wikipedia.org/wiki/Consumers_Union
https://en.wikipedia.org/wiki/Consumer_Federation_of_Califor...
https://en.wikipedia.org/wiki/Consumer_Action
https://en.wikipedia.org/wiki/Public_Citizen
https://en.wikipedia.org/wiki/Better_Business_Bureau
https://en.wikipedia.org/wiki/Americans_for_Financial_Reform
https://en.wikipedia.org/wiki/AARP
https://en.wikipedia.org/wiki/National_Consumer_Law_Center