Haskell began in 1965 as the Preston H. Haskell Company after Preston Haskell proposed taking on a construction contract that became the firm's first project. Haskell now combines architecture, engineering, construction, and consulting work across healthcare, industrial, infrastructure, mission-critical, aviation, and aerospace markets, with design-build and EPC delivery among its core services. The business has grown into a broad AEC platform serving complex capital projects in the United States and abroad, while continuing to emphasize integrated project delivery and self-perform capabilities.