After World War II, America stood on the brink of historic economic expansion. In this environment, in 1947, Detroit accountant George Bailey, then president of the AICPA, launched his own organization. The new entity enjoyed such a positive start that in less than a year, the partners merged with Touche Niven and A.R. Smart to form Touche, Niven, Bailey & Smart. Headed by Bailey, the organization grew rapidly, in part by creating a dedicated Management Consulting (MC) function. It also forged closer links with organizations established by the cofounder of Touche Niven, George Touche: the Canadian organization Ross, Touche and the British organization George A. Touche. In 1960, the organization was renamed Touche, Ross, Bailey & Smart, becoming Touche Ross in 1969. John William Queenan joined Haskins & Sells in 1936. As managing partner from 1956 until his retirement in 1970, he led the organization through major developments in the profession. Haskins & Sells experienced its own major development by merging with 26 domestic organizations and establishing offices in Canada, Central and South America, Europe, and Japan.
In the 1950s, information technologies became increasingly important in business. Few professions were affected more than accounting. Data processing machines freed accountants to focus on developing and monitoring systems to improve the way clients managed. Characteristically, Touche Ross led the profession into this uncharted territory. In 1952, it became the first large accounting organization to automate its bookkeeping. Later, Gordon Stubbs wrote Data Processing by Electronics and Introduction to Data Processing, the first two professional brochures of their kind. In 1964, the organization's work with statistical sampling led to the Auditape System, which brought computer technology to audits. The organization's MC group, which provided computer systems advice, felt the greatest impact from the technology revolution. The organization did pioneering work for several leading corporations and for many government agencies. At Touche Ross, the discipline matured during the 1960s and 1970s under the direction of leaders like Robert Trueblood and Michael Chetkovich.