I work in this industry as well. That said - private label is a small (but growing) area in the US markets, so it's hard to make a generalized statement of how much someone does or does not participate.
Many retailers are beginning tie production of private labeled products in with being the captain of a category - which begins to create incentive for companies to start to pursue these private label opportunities.
K-C and P&G are two examples of companies who largely resist the private label trends in the US - you could counter with ConAgra and Treehouse.
A lot of that has to do with the product and what-not, of course.
Many retailers are beginning tie production of private labeled products in with being the captain of a category - which begins to create incentive for companies to start to pursue these private label opportunities.
K-C and P&G are two examples of companies who largely resist the private label trends in the US - you could counter with ConAgra and Treehouse.
A lot of that has to do with the product and what-not, of course.
[ed: fixed a misspeak]