stands for Departamento Municipal de Água e Esgoto (Portugese; Porto Alegre, Brazil)
DMAE stands for Département Modèles pour l’Aérodynamique et l’Energétique (French: Aerodynamic and Energetic Model Department; National Office for Aerospace Studies and Research; France)
DMAE stands for Détection, Mesure et Assistance Électronique (French: Detection, Measurement and Electronic Assistance)