This company has connections that go straight to the top.
Tips
usage
通天 literally 'penetrate heaven', figuratively means having such reach or power that nothing is closed off — most often paired with 本事 'ability', 关系 'connections', or 手段 'means'. Compare 神通广大 'vastly capable'.
history
The chengyu 通天彻地 (tōngtiān chèdì, 'pierce heaven and earth') extends the metaphor: someone whose talents penetrate every realm.
