Office Machinery Users' Association: minutes, 1927-37 (OMA from Jan 1936); OMA London District branch minutes.
Office Management Association: Council minutes, 1932-60; Institute of Office Management, Council minutes, 1960-72.
Institute of Administrative Management: Council minutes, 1972-84; AGM minutes, 1951-79; Finance & General Purposes minutes, 1956-83; Education Committee, 1959-89; various committees and working parties; balance sheets; membership records; Annual Reports, 1932 to date; OMUA, transactions and bulletins, 1924-34. OMA correspondence and subject files relating to branches, analysis of office salaries; education, kindred organisations, Office Automation Group of IAM, O.A.M.A.S.; Telecommunications Management Association, Consultative Council of Professional Management Organisations, National Examining Board for Supervisory Management, Institute of Reprographic Technology relating to the merger with IAM, distance learning in Administrative Management, IAM & Civil Service College, IAM & Whitwell Manor Management; Development & Conference Centre, books & revisions, to consultancy & consortium, IAM representation on external committees, miscellaneous Committees and Special Projects, to public relations, Conferences, Seminars etc, the 80th Anniversary of IAM, deposits of archives; Bulletin, later Journal, 1947 to date; indexes to journal; occasional papers; Clerical/Office Salaries analysis, 1942-88; Office Staff Practices, 1961-89; IAM Bulletin, 1964-78; Office Job Evaluation books; Office Trend Reports; Job Grading & Merit Rating; OAMAS Publication. [Office Automation Management Advisory Service]; Surveys by and for IAM; Publications by OMA, IOM & IAM; Library lists and publications lists; IAM articles, including off prints from admin. management publications; Branch Publications; Members Handbooks; IAM newsletters; Education; Conferences, Lectures, Seminars, Residential courses; Film, Audio, Recordings, Slides, Video and Overheads; Miscellaneous publications e.g. dinner menus; Publication Packs; Interviews; Office of the Year Awards; Publications for Telecom. Managers Group; Publications for OAMAS; 75 Years/80 years; Armorial Bearings of IAM; Publications relating to Membership; Press Releases; Publications by other organisations; minutes of sub-groups; The Evolution of the clerical office and administrative management in Britain 1891-1974 by E.F.L. Brech; legal papers; Agreements relating to publications for IAM; press-cuttings; photographs.