UPSTACK, a platform for digital infrastructure, completed the acquisition of Progressive Communications Management, a technology services advisory firm. Financial terms were not disclosed. "Bob Matthews and David Weisenberg built PCM into one of the most successful tech services advisory firms based on one simple principle—do the right thing for the customer. Their customer-first mindset is a perfect match with UPSTACK. I’m happy to welcome them to our team," Christopher Trapp, UPSTACK Founder and CEO.