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Abstract We identify vertex operator algebras (VOAs) of a class of Argyres-Douglas (AD) matters with two types of non-abelian flavor symmetries. They are the W algebras defined using nilpotent orbit with partition [q m , 1 s ]. Gauging above AD matters, we can find VOAs for more general N $$ \mathcal{N} $$ = 2 SCFTs engineered from 6d (2, 0) theories. For example, the VOA for general (A N − 1 , A k − 1) theory is found as the coset of a collection of above W algebras. Various new interesting properties of 2d VOAs such as level-rank duality, conformal embedding, collapsing levels, coset constructions for known VOAs can be derived from 4d theory.