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Sustaining Members

SLL Sustaining Members are a network of businesses who collaborate to give financial, technical and moral support to a wide range of Society initiatives. Sustaining Members include large and smaller organisations, including consulting engineering practices, manufacturers and contractors.
Benefits of Membership

  • Complimentary hard copy of all new SLL publications
  • Input into Society publications including consultation on drafts prior to publication and invitation to provide images for inclusion in the guides (credits included)
  • Discount on all SLL publications
  • Listing on SLL website with link to company home page
  • Use of the SLL Sustaining Member logo
  • SLL Sustaining Member Certificate
  • Monthly CIBSE Journal
  • Bi-Monthly SLL Light Lines magazine
  • Free delegate place at an SLL LightBytes event
  • Discounted fees for other SLL events
  • Publicity at SLL national and regional events
  • Free online access for a specific employee to the CIBSE Knowledge Portal which includes PDFs of all SLL Publications

Networking opportunities
Meeting regularly throughout the year, the Society stages a variety of events in the regions that discuss industry issues whilst providing extensive, valuable networking opportunities.

These include the annual meeting of the Society, LightBytes regional events, and other opportunities to hear industry leading speakers discuss pressing industry matters.

Download the 2020 SLL Sustaining Membership application form

SLL Sustaining Member organisations are asked to confirm that they will undertake to work to the CIBSE Code of Professional Conduct​:
View the CIBSE Code of Professional Conduct
For more information, please email or call 0208 772 3685

Cost: Sustaining Membership is is £850.00 plus VAT (prorated to align with start date) annually.

The Society acknowledges the valuable support given by its Sustaining Members listed below:




  Current by GE