AED HQ, Belgium
Belgium. Huge collection of lighting, sound and AV equipment.
Alexandra Palace
London
Autograph Sound

AV Xpert

BBC Elstree Centre

Broadcast Engineering Museum

Cameron Mackintosh Ltd.

Christie Lites Museum, Toronto

DHA Designs

Electrokinetica
UK. Private collection of lighting equipment.
ETC Museum

Gaiety Theatre, Isle of Man

Gerriets Spotlight Museum
France. Huge collection of lighting equipment.
Golden Sea International Lighting Museum

Historic Stage Lighting Collection

Jim Laws Collection
UK. Private collection of lighting equipment.
Magna Aula, Caracas

Mike Hall Collection

Museum of Broadway

Museum of Modern Showlighting (MoMS)
Clay Paky museum celebrating their history and evolution from the early days of disco lighting to moving lights. 
National Media Museum, Bradford, UK

Oper Leipzig
Germany.
Penn State Archive

Production Park, Wakefield

Rose Bruford

Royal Court Liverpool

Science Museum Collection

The Lighting Hospital

The National Theatre, London

Theatre Museum, Lisbon, Portugal

University of Exeter Drama Department

Vintage Concert Audio

Weymouth Pavilion

White Light