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London offers a diverse range of exhibition venues perfect for hosting events for around 400 attendees. These spaces are designed to accommodate large gatherings, featuring flexible layouts and state-of-the-art facilities. When selecting an exhibition venue, consider accessibility, technical support, and catering options to ensure a seamless experience. With its vibrant atmosphere and excellent transport links, London is an ideal location for your next exhibition.

London

United Kingdom

The United Kingdom has an excellent transport infrastructure, with a wide variety of options for getting around.

TRANSPORT

The United Kingdom is home to some of the most iconic landmarks in the world, from Big Ben to Stonehenge.

LANDMARKS

The United Kingdom has a rich cultural heritage, with a wide variety of traditional music, art and cuisine.

CULTURE

By plane, train, underground, bicycle and more, London has some of the best transport links in the world.

Icons that make London know the world over, from Buckingham Palace to the House of Parliament.

Home to Theatreland, world renowned music venues, museums and a piece of history on every corner.

Exhibition Venues in London for 400 people

Exhibition Venues

Versatile, large event space in central London with iconic views. Ideal for conferences and galas.

The self-contained third floor comprises the Britten, Fleming and Whittle rooms which can be combined to present a range of versatile event spaces. These adaptable rooms can be combined to present a range of versatile events including large conventions, large conferences and shell scheme exhibitions. When combined, the Fleming and Whittle can host up to 1,300 delegates.

These three rooms combined create the largest and most striking event spaces, with the double height windows in the Britten offering stunning backdrop for exhibition stands, as well as the networking and catering breaks.



Modern event space with stylish seating for networking at QEII Centre.

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Third Floor conference at QEII Centre with engaging audience and prominent screens.

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Modern event space for tech professionals with vendor booths in QEII Centre.

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Conference space with purple chairs for annual seminar at QEII Centre.

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Event space with stage and dual screens, ideal for corporate meetings and conferences.

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Elegant banquet setup with tables and greenery for corporate events at QEII Centre.

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Large audience at professional event in QEII Centre with impactful staging, branding, and networking.

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Sophisticated event space with stylish bar and bartenders in formal attire for networking events.

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Third Floor event space with red sofas for panel discussions and professional lighting.

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Theatre

Business

Third Floor (Fleming, Whittle & Britten)

QEII Centre

A luxurious 5* Victorian hotel with a grand ballroom, ideal for large-scale elegant events.

Designed for luxury and efficiency, we care. 

Perfect for three-days conferences with accommodation needs or incentive travel groups stays. 

30 minutes from London Heathrow Airport and 15 minutes from Kings Cross St Pancras station. 

Featuring five out of eleven of the largest event spaces on the ground floor, the hotel ensures a seamless event flow with easy access to all conference areas, an attended cloakroom, complimentary registration and a foyer area. 

-Filled with natural daylight
-Street-level loading bays
-Sustainable menus
-No additoinal charges for own AV 


Grand Ballroom at The Landmark London, elegant venue for conferences and social events.

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Grand Ballroom at The Landmark London, elegant meeting space with round tables for corporate events.

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Doorman in formal attire at The Landmark London Grand Ballroom entrance for upscale events.

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Grand Ballroom corridor at The Landmark London, elegant for high-end events and gatherings.

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Grand Ballroom at The Landmark London, elegant wooden design for events and meetings.

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Grand Ballroom at The Landmark London with ornate arches, perfect for upscale events.

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Grand Ballroom at The Landmark London, elegant space for upscale meetings and events.

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Grand Ballroom at The Landmark London, elegant decor for conferences and presentations.

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Elegant Grand Ballroom entrance at The Landmark London for corporate events and celebrations.

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Reception

Grand Ballroom

The Landmark London

A spacious, pillar-free event suite with advanced AV tech in a green hotel near Tower Bridge.

Situated on the Lower Ground floor of the property, Trinity & Goodmans suite offers a total capacity of 750 people. The room may be hires as a single space or separated into four separate suites, depending on the type of the event. The suite is ideal for hosting product launches, exhibitions, live webcasting session, dinner dances, conferences, gala dinners and Annual General Meetings. By booking the suite, you also get an access to the private indoor Atrium and two spacious Foyers which are the perfect space for the catering and exhibition. 

Trinity & Goodmans Suite at Leonardo Royal Hotel, spacious conference hall for corporate events.

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Trinity & Goodmans Suite at Leonardo Royal Hotel, ideal for corporate events and conferences.

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Trinity & Goodmans Suite at Leonardo Royal Hotel, ideal for conferences and banquets.

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Trinity & Goodmans Suite at Leonardo Royal Hotel, elegant event venue with festive decor.

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Trinity & Goodmans Suite at Leonardo Royal Hotel, modern entrance for corporate events.

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Events

Trinity & Goodmans Suite

Leonardo Royal Hotel London Tower Bridge

A grand historic hall with stunning views, ideal for large events and receptions up to 2,500.

Light-filled, high-ceilinged riverside gallery space with flexible conference seating and breakout rooms—strong for a branded, production-led tech conference with networking flow.

Elegant Grand Hall at Old Billingsgate, vibrant event space for galas and corporate celebrations.

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Elegant Grand Hall at Old Billingsgate, perfect for gala and corporate events.

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Elegant gala setup in The Grand Hall, Old Billingsgate, ideal for corporate events.

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Elegant Grand Hall at Old Billingsgate, perfect for gala events and formal dinners.

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Vibrant Grand Hall at Old Billingsgate, perfect for corporate events and social gatherings.

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The Grand Hall

Old Billingsgate

Historic Grade II listed circular hall with a glass dome, ideal for conferences and events.

Built in 1939, the stunning Grade II listed Assembly Hall was designed by world-renowned architect Sir Herbert Baker. 

Features include natural daylight, polished English oak panelling and the circular space's architectural focal point - a striking 30-foot glass dome. 

The iconic 519 square metre circular space with its ceiling height of 9.7m hosts theatre-style Conferences for up to 664 delegates, Meetings for up to 208, and classroom-style Training sessions for up to 198 attendees, as well as Product Launches, Fashion Shows and Award Ceremonies. 



Assembly Hall in Church House Westminster with grand stained glass, ideal for events and presentations.

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Assembly Hall in Church House Westminster, elegant venue for conferences and presentations.

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Assembly Hall in Church House Westminster with ornate ceiling, ideal for events and presentations.

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Assembly Hall at Church House Westminster, spacious auditorium for conferences and events.

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Assembly Hall in Church House Westminster, elegant auditorium for conferences and events.

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Assembly Hall

Church House Westminster

A vast historic event space with a timber roof, ideal for conferences, dinners, and exhibitions.

The Porter Tun is one of the largest and oldest unobstructed event spaces in London. An exposed King Post timber roof giving a clear span of 60ft above a 778 square metre antique wooden floor makes it a perfect location for conferences, awards dinners, fashion shows and exhibitions. The large raised balcony is ideal for a reception area or presentation platform. The Malt Room is able to be booked as a green room. 

Vibrant event space at The Porter Tun with lush greenery for themed gatherings.

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Elegant event space at The Porter Tun for HR Excellence Awards 2024 with vibrant decor.

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Dynamic runway event at The Porter Tun with performer in eye-catching costume.

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Dynamic event at The Porter Tun with stage backdrop and confetti celebration.

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Dynamic conference at The Porter Tun, featuring modern visuals and engaged audience.

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Conference at The Porter Tun with dynamic stage setup and engaging visuals.

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Elegant gala dinner setup at The Porter Tun with floral centerpieces and vibrant lighting.

Exhibition Venues in London for 400 people

Trending Exhibition Venues in London for 400 People

QEII Centre

The Landmark London

Leonardo Royal Hotel London Tower Bridge

Old Billingsgate

Church House Westminster

The Brewery

Chelsea Football Club

Kia Oval