Unfortunately, the search results do not provide specific information about the company "Xcurve" with the URL http://www.xcurve.com.br and LinkedIn URL http://www.linkedin.com/company/xcurve. However, based on general practices, companies often use their website and LinkedIn profiles to detail their services, target audience, and unique selling propositions (USPs). Typically, a company's USP might involve innovative products, exceptional customer service, or specialized expertise. Without direct access to Xcurve's content, it's challenging to provide a precise description of their activities or target audience.