You can request that a specific contract opportunity be 'Set Aside HUBZone' when you respond to Sources Sought / RFIs.
Review Current Set Aside Calls on the HUBZone Chamber LinkedIn page
"We respectfully request this opportunity be designated as a Competitive HUBZone Set Aside. We have coordinated with the HUBZone Chamber of Commerce to ensure you can have a reasonable expectation that 2 or more HUBZone-certified small businesses will submit a proposal against this RFP, should it come out. These proposals will be from procurement ready firms quoting reasonable market rates."
The best way to get a federal contracting opportunity Set-Aside for HUBZone companies ... is to REQUEST that the contract be set aside during the Sources Sought market research phase!
ADD the recommended Set Aside language within the body of your email in addition to your own content
AND on the first page or Executive Summary of your RFI response
Highlight the request language to ensure the Contracting Officer notices it.