Masons: Trainees at Vauxhall College of Building, under the supervision of Brian Waterman, Head of the Masonry Workshop; and trainees at Ashby & Horner Stonemasonry Ltd., under the supervision of Alan Watts and with assistance from the Carpenters' Company College, Great Titchfield Street.
Architect: A.D. Mason of Whitfield Partners
Astronomer: Gordon E. Taylor
Auditors: P.E.G
Designer of Dials faces & gnomons: Caroline Webb
Designer of promotional & fundraising material: James Pursey (pro bono)
Foundations: Myton Ltd
Gnomens: Comyn Ching & Co (pro bono)
Historian: Dr James Thomas, Portsmouth University (pro bono)
Horological Consultant: Michael Turner, Head of Clocks, Sotheby's (pro bono)
Letter-carver, painter and gilder: Caroline Webb
Lettering consultant: James Moseley of the St Brides Printing Library (pro bono)
Masonry and Erection: Ashby & Horner Stonemasonry Ltd
Scaffolding: GKN Ltd
Site Supervision: Taylor Woodrow Construction Ltd
Solicitors: Sidney Torrance
Structural Engineers: Roger Howard of Hockley & Dawson
