Do you charge booking fees?

No. Our venue-finding service is completely free for event organisers — we are paid by the venues we partner with, never by you.

How many venues are listed?

Over 25,000 verified conference venues, meeting rooms, hotels and unique event spaces across 18 countries.

How fast will I receive proposals?

Tailored proposals are typically delivered within 2 hours during UK business hours. VenuClaw, our AI assistant, is available 24/7.

Who is behind InternationalVenues.com?

InternationalVenues.com is operated by Jigsaw Conferences Ltd — a UK venue-finding agency trusted by government, FTSE 100 and procurement teams since 2003. ISO 27001 certified.

Do you cover venues outside the UK?

Yes. We source venues across Europe, the Middle East, the Americas and Asia-Pacific. Most enquiries are sourced within 2 working hours regardless of region.

Conference Venues in Portsmouth for 500+ Guests

4 venues available — free service, no booking fees

Guests:

Showing 4 of 4 venues

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Hotel

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Cosham railway

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Portsmouth

Portsmouth Marriott Hotel

North Harbour, PO6 4SH

400

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500

Parking

Modern 4-star Marriott hotel in Portsmouth offering extensive conference facilit...

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Sports & Events Centre

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Southsea railway

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Portsmouth

Mountbatten Centre

Burnaby Road, PO1 3PU

800

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1,500

Parking

Multi-purpose sports and events centre in Portsmouth offering flexible spaces fo...

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Concert Hall & Conference Centre

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Southsea railway

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Portsmouth

The Guildhall

Guildhall Square, PO1 2AB

2,500

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3,000

Historic Portsmouth concert hall and conference venue with multiple event spaces...

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University Conference Centre

CLAIM

Southsea railway

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Portsmouth

University of Portsmouth

University House, Winston Churchill Avenue, PO1 2UP

600

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800

Parking

Modern university venue in Portsmouth offering flexible event spaces with waterf...

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About Conference Venues in Portsmouth for 500+ Guests

Browse 4 conference venues in Portsmouth suitable for 500+ guests. Compare conference facilities with AV equipment, breakout rooms, and professional event Portsmouth offers 4 venues for conference events accommodating 500+ guests. Each venue has been verified and includes details on capacity, pricing, facilities, and availability. Use our free venue finding service to compare options and receive proposals with no booking fees.