Arlington Capital-backed Systems Planning & Analysis, a provider of innovative solutions in support of complex national security programs and defense priorities, completed the acquisition of PRKK, a small and highly specialized aerospace company. Financial terms were not disclosed. “As SPA’s strategic expansion across the S&I domain continues, we are thrilled to fold PRKK’s highly complementary capabilities into our offerings, further enabling us to deliver specialized analytics and engineering expertise to our national security customers,” Rich Sawchak, SPA CEO.