Naval architecture firm, Robert Allan Ltd. Is celebrating 90 years as an active and growing business. Three generations of family ownership succeeded by 12 years of employee ownership and management has firmly established the company as a major force in the world of ship design consultancy. Although best known for the extensive work on high-performance tugboats, the company continues to be actively involved in many diverse design projects, including research vessels, fireboats, barges, crew boats, wind farm vessels, and shallow-draft push boats and barges.