The Newcastle Connection software system was designed to link UNIX systems, and was then commercially licensed for use. The software was distributed by MARI (see BR/14). For reports relating to the Newcastle Connection, see also BR/3/19/16/4 and BR/3/19/16/6).

Professor Randall provided occasional consultancy to International Computers Limited (ICL), a successor to English Electric Computers (for which see BR/1).

Professor Randell was a member of the Advisory Board.

The Northern Informatics Applications Agency (NIAA) (initially referred to as the Regional Data Network Initiative) was initially established in 1993 to improve data networking provision in the North of England, and came into legal existence on 1 April 1995.

Professor Randell was a trustee and a member of the Board of Directors for the Museum at Harvard University, Boston, USA.

International Federation For Information Processing (IFIP) is the multinational organisation for Information Technology. Professor Randell was a founder member of Working Groups 2.3 (Programming Methodology) and 10.4 (Dependability and Fault Tolerance). He also refereed papers for IFIP conferences and helped organise some IFIP events. For additional correspondence relating to IFIP, see BR/3/24, especially BR/3/24/14, 23, 33, 40.

Professor Randell was a Fellow of the British Computer Society (BCS) and a member of its Safety Critical Systems Task Force. He was also a member of the Editorial Board of the British Computer Journal, the journal of the BCS, for records of which 1972 - 1991 see BR/3/22/3.

Records relating to other organisations of which Professor Randell was a member, or with which he corresponded. Arranged alphabetically.

Consists of letters received or sent by Sir Lawrence in the years 1912 - 1945, largely concerning his time and duties with the Royal Air Force during World War I and World War II.

Consists of material relating to the Northern Regional Health Authority in England and Sir Liam's role in the Authority as Regional Medical Officer and Regional Director of Public Health (June 1986 - February 1992), and Regional General Manager and Director of Public Health (March 1992 - March 1994).