sip trunk provider in canada?

[js19]

I tried google but I can't find anything that looks like a big company with any sort of history. Everything I've found looks like tiny shops with slipshod websites that are reselling trunks. That makes me nervous since I am contemplating putting not only a dialer, but the pbx world on voip as well. This is for a financial services company and there is 0 room for poor quality.

I don't mind paying more for rock-solid service.

Thanks.