Has anyone purchased (or run) a company that has SBIR grants as part of its revenue and business model? I am trying to understand how that is taken into consideration during valuation. In particular, a company that has won several past SBIR grants and actively applies for them as part of their model. My approach is a "sum of parts" valuation. I plan to value the grant revenue separately from the product/research commercialization revenue using different multiples. Other suggestions or comments?