DASH does seem to be a functioning DAO where D is distributed but sure if it is decentralized control. The stakeholders apparently vote on the actions or management of the development of the open source. The stakeholders apparently approved to have % of the mining rewards paid to a foundation which then distributes the funds according to projects approved by votes of the stakeholders. However what is not clear to me is to what degree this is all enforced by smart contract protocol or done manually by the foundation.

There are allegations however that the distribution of the DASH tokens were highly concentrated by an alleged instamine and subsequent masternode ROI scheme which may have further concentrated the tokens held by the core insiders. But I don't know if anyone has been able to prove conclusively that DASH is not really decentralized, although the suspicion is apparently strong amongst some especially Monero supporters.