Welcome to the CM community!
I'm not sure if you're asking for specific food items or manufacturers/distributors.... We have taste tested a lot of the stuff Iisted below, just to be sure what to expect....
Mountain House, Provident Pantry, Alpine Aire and eFoods - all of these are quality, pre-packaged, just add water, products. eFoods has a small line of products, but the quality of food is probably much higher than the others.... I'm sure there are some I'm forgetting....
We also buy canned butter, cheese and clarified butter (cooking grease in shelf stable form) and Yoder's canned meats. I also have another brand, can't remember the name, from Pleasant Hill Grain.
I don't know how some people feel about it, but based on my research and calling up food companies, I've added many grocery store cans of foods - chili, tamales, favorite soups, fruits and veggies that don't grow in my area, smoked oysters and canned tuna - you name it....
I have an Excalibur dehydrator that I love :) Last year I stored dried tomatoes, peppers, apple rings, apricots and plums - nom, nom, nom!!
We have several 5 gallon buckets with wheat kernels, pasta, beans and rice - the latter 3 bought at a grocery store and packaged by us at home.
Hope this helps get you started - if there is something you really like to eat, don't be afraid to buy some of it and store it - and always remember, First In/First Out rotation!!
~ Rita

What do people reccomend for emergnency food? Do you have pre-packaged stuff you reccomend?