Quadrigacx :
I see some concerns based on their technical presence. Their web site says they are based in Vancouver, but I don't see an actual address. Searching around google finds one, but it's very suspicious that Canadian address and phone number aren't posted on their web site.
Much more concerning than that, their entire web presence is registered under the Bahamas, and corporate ownership information is concealed, with only an office address in Nassau Bahamas given. This is extremely unusual for a legitimate company. Normally you will see an actual contact person, the corporation's name, street address, and even a phone number all in Canada.
The Bahamas link is also clearly more than superficial. A search of their social media found an event posted a year ago with the description "Our CEO Gerald Cotten at Alpha North Capital Conference in the Bahamas."
The fact they are concealing their Canadian presence and contact information, and have such a strong Bahamas link, raises all the red flags. I would never do business with this company. Part of my real job is cyber security and fraud investigation, and Quadrigacx fails the sniff test. This does not look legitimate.