Signature Aviation, an aviation services provider, completed the acquisition of TAC Air division of The Arnold Companies, an aviation & aerospace company offering aviation support and fuel marketing services. Financial terms were not disclosed. “TAC Air is an example of home-grown success, and we’re delighted to share in the storied heritage of TAC Air while embracing its over 600 employees within the Signature team. We aim to build on the exceptional staff and impressive network of TAC Air, generating greater value and care for private aviation travelers in the most desirable locations," Tony Lefebvre, Signature Aviation CEO.