One to check out might be General Hydroponics. They make a product called "Florablend" that says:
[li]"FloraBlend is a vegan product and contains no animal derived ingredients.[/li] [li]FloraBlend is a compost tea that is fermented from a proprietary blend of plant materials, plus seaweed, rock powders and micronized leonardite."[/li]
I guess that is where a line must be drawn as to what is an animal and what is not. Doesn’t it take some living creature to break down the solids, digest them and turn them into compost?
My personal preference is to use only compost from my own source so that I can trust the final product. The worms and insects and microbes do all of the breaking down, I am providing them with habitat, and I don’t have to worry about manure that has come from factory farmed animals and/or is contaminated with antibiotics, chemical dewormers, or herbicides.
The last two times (I didn’t learn my lesson the first time) that I bought a product (mulch/fertilizer) to use in my yard the results were disastrous. Now I just compost my own kitchen and yard waste. Well, I do get coffee grounds when I can find them – from a coffee shop.