With an eye to the potential of a client-focused business that required professional expertise in the planning and integration of vertical transportation systems, John A. Van Deusen founded John A. Van Deusen & Associates, Inc., in 1980 in a Livingston, New Jersey, office.

Within a few years, three additional principals - all industry experts with a depth of technical knowledge and diverse business experience - joined the firm and its reputation began to grow exponentially. By 1990, with a staff of eight and more than 550 projects completed, the firm became Van Deusen & Associates and moved to larger Livingston headquarters. Twenty-six years after its founding, now doing business as VDA, the company has worked on more than 10,000 projects, earning recognition as one of the world's finest independent specialty consultants.

Since John A. Van Deusen provided services for his first account, a roster of repeat clients and word-of-mouth referrals -- architects, engineers, developers, and building owners and managers - continue to call on VDA as the ultimate resource for vertical transportation consulting services.