The two venues in and Piccadilly updated the list as part of a review process following the venue brand’s first year of trading.
"We were delighted to receive substantial interest from the industry from like-minded suppliers in joining our accredited list," said Audi Quattro Rooms commercial manager Charlotte Reeves.
"More than 150 events have been held at our two venues and the feedback we have received from these events is testament to the calibre of the suppliers who have worked with us in the past."
Recent events at Audi Quattro Rooms have included a series of private screenings and a VIP dinner for Paramount, a reception and dinner for SAP and meetings for Nokia, Barclays Capital, BSkyB and The Design Council.
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