Yes, once the E-2 registration itself is approved. E-2 spouses are generally employment-authorized incident to status, independent of how the marginality evidence was ultimately built.
Spousal work authorization follows approval, not the underlying marginality argument
The marginality analysis is a threshold question that has to be resolved before E-2 status is granted at all, but once the enterprise is approved, whether based on current job creation, a documented growth trend, or a credible expansion plan, the investor's spouse can generally obtain employment authorization incident to E-2 status. This benefit does not depend on which specific evidence carried the marginality argument; it flows from the underlying E-2 classification itself once granted. For a household relying on a scaffolding business that has so far only supported the investor, a working spouse can be a meaningful practical bridge while the enterprise builds toward the broader capacity the marginality standard is looking for, and that arrangement is entirely consistent with, not a substitute for, strengthening the business case itself.