No, maven trading is not regulated and they have clearly stated this on their website. Maven trading does not also partner with any regulated forex brokerages like some prop firms do and this would have given them more credibility.
The prop firm business is generally new and sort of uncharted territory so the industry is still putting measures in place to formulate concrete regulation for prop firms. For now you can either steer clear of prop firms because of their high risk or you deal with them at your own risk.