According to my knowledge it is only possible to crack WPA/WPA2 PSK or Pre Shared Keys. During authentication handshake. It is possible to capture eapol handshakes. This can be accomplished either actively or passively. However, just aircrack is not sufficient. It is used in a last stage.
However it is not recommended to use PSK or similar lower level security for enterprise networks. And it is not compatible with compliance requirements. Most of these networks have main components such as radius servers, PKIs with protocol support such as EAP_TLS (Transport Layer Security). This ensure the authentication and trust among devices. With AES encryption standards, data communication is highly secure. So it is not possible to crack if it is up to its standards.
However, there may be vulnerable spots. Like mixed protocol usage, obsolete clients who are allowed to use other mechanisms. Nothing is 100% secure.