Berkshire Partners, a Boston-based investment firm, completed the investment in UPSTACK, a provider of cloud and internet infrastructure solutions. Financial terms were not disclosed. "UPSTACK was founded to bring enterprise-grade advisory services to businesses of all sizes. Berkshire's expertise in the data center, connectivity and managed services sectors aligns well with our commitment to enabling and empowering a world-class ecosystem of technology solutions advisors with a platform that delivers higher value to their customers," Christopher Trapp, UPSTACK Founder and CEO.