- Anonymous
- Blyth & Blyth CE, Glasgow
- Borders Regional Council
- British Rail Engineer’s Office, Waverley Station, Edinburgh
- Carfrae & Morrison CE, Edinburgh
- Carillion PLC
- Central Regional Council
- Chris Cartwright
- Col GJL Coltart FICE, Edinburgh
- Colin Buchanan and Partners Ltd
- David Narro Associates, Edinburgh
- David Watt, FCBC
- DB Cargo (UK) Limited
- Department of Water and Drainage, Lothian Regional Council
- Derek Chambers CEng FICE
- Director of Water and Drainage, Lothian Regional Council
- Dr David McGuigan MICE, Edinburgh
- Dr JW Galloway, Edinburgh
- Dr Miles Oglethorpe
- Dr Robert McWilliam MSc MBA PhD CEng MICE FIES FRSA, Berkshire
- East Lothian Council
- Edinburgh Corporation Water Works
- Eric Michael Arrol Hunter, Richard Jackson Arrol Hunter and Hamish Arthur Arrol Hunter
- Falkirk College of Further and Higher Education
- Fife & Kinross Water Board
- Forth Bridges Visitor Centre Trust
- Forth Crossing Bridge Constructors
- Forth Ports Authority
- Glasgow City Council
- Graeme Cruickshank, Edinburgh
- Heriot-Watt University
- Heriot-Watt University/Institution of Civil Engineers
- In the ownership of the Local Association prior to 1971
- James Young FICE, Alford, Aberdeenshire
- Jenny Gilbertson
- John Andrew FICE
- John McLachlan McCall BSc CEng MICE FPWI, Sussex
- Kenneth C McCrae CEng FICE
- Laigh Milton Viaduct Conservation Project
- Laing O’Rourke
- Livingston Development Corporation
- Lothian Regional Council
- Lothian Regional Council, Department of Highways, Direct Labour Organisation
- Lothian Regional Council, Transportation Department
- Mark Watson, Historic Scotland
- Mason Pittendrich CE, Edinburgh
- Miss Grainger (daughter of Thomas Grainger)/Institution of Civil Engineers (1913)
- Mr AA Woodhead BA FICE, Edinburgh
- Mr Andy Watt, Edinburgh
- Mr AW Turner, Edinburgh
- Mr Bob Thompson MICE, Edinburgh
- Mr Brian T Linfoot MICE
- Mr Charles Fetherston, Glasgow
- Mr Charles Roe FICE
- Mr Douglas McBeth CEng MICE MIStructE, Edinburgh
- Mr FR Dinnis MICE Edinburgh
- Mr George Kenneth, Warwicks
- Mr Ian Young MICE
- Mr J M Mackintosh MBE MICE, Edinburgh
- Mr James Beattie
- Mr Jim Lyon, Peebles
- Mr John Heron
- Mr Jonathan Lang, Sheffield
- Mr LM James MICE, Coventry
- Mr Neil Griffiths
- Mr Peter Rathbone
- Mr Quentin Stevenson, Edinburgh
- Mr R O Calder MICE, Edinburgh
- Mr WR Easton, Edinburgh
- Mrs Anne Loch, East Lothian
- Mrs Heather Davis, Edinburgh
- Mrs Margaret Brown, Ayr
- Network Rail Asset Protection Team
- North Lanarkshire Council
- On loan from Scottish Borders Council
- On Loan from the National Museums Scotland (returned)
- On loan from the National Railway Museum, York
- Peter Alan McMahon
- Professor Arthur Edwards (Head of the Heriot-Watt University Civil Engineering Department 1980-1990)
- Professor Gareth Pender
- Professor John Archer CBE FREng FRSE
- Professor Paul Jowitt
- Professor Roland Paxton FMBE PhD DEng FRSE CEng FICE, Edinburgh
- Ray Bolton (ex NCB/British Coal Colliery Surveyor), Lancashire
- Robert H Cuthbertson & Partners CE, Edinburgh
- ScotRail
- Scottish Development Department
- Scottish Executive
- Tayside Contracts
- Tayside Regional Council
- The City of Edinburgh Council
- The Corporation of the City of Edinburgh
- The Edinburgh Green Belt Trust
- The Royal Commission on the Ancient and Historical Monuments of Scotland
- Transport Scotland
- Travers Morgan
- Tweed Bridges Trust
- University of Portsmouth, Faculty of Technology, School of Civil Engineering & Surveying
- Unknown