VDA is a global vertical transportation consulting and inspection firm supporting clients across the United States, Canada, the United Kingdom, the Middle East, India, and growing markets worldwide. We partner with building owners, architects, and property managers to ensure their elevators and escalators are safe, reliable, efficient, and compliant.

Our team brings decades of hands-on field experience in maintenance, modernization, construction, and inspections—expertise that shapes the practical, data-driven solutions we deliver. Our services span the full equipment lifecycle, including design, maintenance management, code compliance, performance assessments, modernization planning, due diligence, and portfolio-level advisory support.

Founded in 1980, VDA continues to expand both geographically and in the breadth of services we provide. With experts in locations around the world, and an integrated global network, we help clients optimize performance, reduce risk, and elevate the way they manage vertical transportation systems.