They're all brokerage companies, including many of the buildings that look like houses. There's also the CBSA commercial building which houses the CBSA commercial offices, truck docks and a bunch of brokerages itself. The street directly to the north of this one has a bunch of brokerage comapnies, too.
reply to dsa I'm confused, is the problem that $180 gifts should not be subject to customs charges and UPS clearance fees? If so, take it up the line at UPS. Did UPS instruct you to present fraudulent customs documentation?