I recommend that you remove ALS Therapy Development Institute from your list of ethical alternatives. While it is true that ALS TDI does not CURRENTLY use embryonic stem cells (ESCs) in their research, that is purely a practical decision rather than an ethical one. I have corresponded directly with the organization via both Twitter and email this week, and it was clear from their responses (and indeed, from their own "Research Strategy" on their website) that they would gladly use ESCs IF the research proved fruitful. The only reason they have abandoned ESCs at this time is because adult stem cell research is yielding superior results.