ExCeL London dominates the large-scale conference market with its ICC Auditorium accommodating up to 5,000 delegates and 120 meeting rooms across the campus. The QEII Centre runs a close second with 32 rooms and capacity for 2,500 across seven floors, while Central Hall Westminster's Great Hall handles 2,000 standing or 875 theatre-style. For pure conference functionality, ExCeL's integration with exhibition halls gives it the edge for conventions needing both conference and expo elements under one roof.
Day delegate rates (DDR) at London conference centres typically range from £55-£150 plus VAT, with venues like Church House Westminster publishing small meeting rooms from £385 per half day. Full auditorium hire varies dramatically: Friends House offers The Light auditorium from around £6,000 per day, while flagship spaces at Convene 22 Bishopsgate can reach £28,000 for exclusive use. Most venues bundle catering, AV basics and Wi-Fi into their DDR packages.
Convene 155 Bishopsgate sits just 2 minutes from Liverpool Street station's eight rail lines, while Friends House faces Euston station directly across the road. ExCeL London benefits from its own Elizabeth line and DLR stations at Custom House, just 2-3 minutes' walk. The Westminster cluster around QEII Centre connects to three tube lines within 10 minutes' walk, making it ideal for government and association events drawing national attendance.
Purpose-built conference centres like etc.venues County Hall feature dedicated business entrances, avoiding the lobby congestion of hotels. Tiered auditoria with fixed projection and broadcast-grade AV define venues like IET Savoy Place's Kelvin Theatre (451 seats) or RCP London's modernist lecture theatres. Conference centres also offer better room combinations: 30 Euston Square can run its 300-seat auditorium alongside 18 ground-floor meeting rooms without sound bleed.
15Hatfields on the South Bank has won multiple awards for its sustainability standards, featuring solar panels and rainwater harvesting across its 17-room facility. BMA House in Bloomsbury holds ISO 20121 certification for sustainable event management, while Church House Westminster operates carbon-neutral meetings. Friends House, owned by the Quakers, embeds sustainability into its 33-room operation opposite Euston, offering competitive pricing that reflects its values-driven approach.
Convene's properties at 155 and 22 Bishopsgate built hybrid capability into their DNA, with dedicated broadcast studios and room-wide camera coverage. IET Savoy Place runs professional broadcast operations from its riverside location, while 1 Wimpole Street's three theatres can link virtually to accommodate 504 remote delegates. The Wellcome Collection's Henry Wellcome Auditorium offers museum-quality streaming for science and medical conferences requiring publication-grade recordings.
etc.venues Prospero House opposite Borough station specialises in training delivery with 30 rooms configured for interactive learning and dedicated trainer facilities. Business Design Centre offers 14 flexible rooms under its iconic glass roof, ideal for creative workshops needing natural light. 30 Euston Square combines 18 ground-floor meeting rooms with residential accommodation upstairs, perfect for multi-day training academies where delegates stay on-site.
One Great George Street houses conferences in the Institution of Civil Engineers' Edwardian headquarters, with the Great Hall accommodating 400 beneath period ceilings. Mary Ward House in Bloomsbury showcases Grade I Arts & Crafts architecture with its 350-seat hall featuring original design elements. America Square Conference Centre incorporates views of the Roman London Wall, while No.11 Cavendish Square combines its Burdett Theatre with an Orangery and private garden.
ExCeL London's integration with exhibition halls provides unlimited catering and display options across its massive footprint. etc.venues 133 Houndsditch features a 15,000 sq ft Galleria specifically designed for registration, catering and exhibitions alongside its 700-seat arena. The QEII Centre's multiple floor plates allow creative use of space, from the Mountbatten Exhibition Hall to panoramic sixth-floor receptions overlooking Westminster.
Major conference centres like QEII Centre and Central Hall Westminster often book flagship dates 12-18 months ahead, particularly for September to November conferences. Venues with multiple rooms like etc.venues County Hall's 39 spaces offer more flexibility, potentially accommodating events with 3-6 months' notice. January and August typically offer the best availability and rates, while avoiding school holidays can unlock better pricing at venues like Kings Place or The Mermaid London.