Chewy.com. The formula we chose was Lamb and Venison. We received this food for free in exchange for our honest review, and were not compensated in any other way.
The ingredient list is so-so. The first ingredient is lamb, followed by chicken meal. Venison meal isn't actually on the list until after chickpeas, split peas, potato protein, and alfalfa meal, so I am not too confident about how much actual venison is in this food in relation to the other proteins. That said, there is both deboned lamb and lamb meal in addition to the chicken meal, and no by-products are listed.
Both Ptera and Koira really liked this food. The kibbles are flat and round, larger than I like for doing training with Ptera, but still relatively small.
Overall, I am happy to feed this food, but it probably will not be making it into our regular rotation of food. However, I wouldn't hesitate to feed it again if it was on sale for a great price (currently just over $40 for a 22 lb bag, which isn't horrible but also not awesome for price in my opinion).