We prove the A-theoretic Farrell-Jones conjecture for virtually solvable groups. As a corollary, we obtain that the conjecture holds for S-arithmetic groups and lattices in almost connected Lie groups.Using this, we can adapt previous work by Rüping [9] and Kammeyer, Lück and Rüping [7] to A-theory:Corollary 1.2. The A-theoretic Farrell-Jones conjecture with coefficients and finite wreath products holds for subgroups of GL n (Q) or GL n (F (t)), where F is a finite field.In particular, the conjecture holds for S-arithmetic groups.Proof. The proof works as the one of [9, Theorem 8.13]: Since the conjecture is inherited under directed colimits [4, Theorem 1.1(ii)], it suffices to consider linear groups over localizations at finitely many primes. Then [9, Proposition 2.2] together with [4, Corollary 6.6]