OnSource is an event management, sourcing and audio visual company based in London and is owned and managed by Marcelle Quail and James Walton.

With over 20 years collective experience in the event, audio & video industries we are perfectly placed to provide professional support, management and advice to our diverse client base.

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Marcelle Quail
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Marcelle brings with her 10 years of experience in the events industry, working on many large scale and high profile events in many of London’s prestigious venues, such as the Natural History Museum, Victoria & Albert and Somerset House. After learning about all facets of the event industry over the last decade, she decided to form OnSOURCE, where she acts as Account Manager and is responsible for looking after OnSOURCE's valued clients, offering the highest level of customer service and support for every event.

James Walton
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With an extensive background in permanent AV installations, audio engineering and events James decided to utilise his skills in the UK as of early 2016. James is a certified Kramer installer (via Electrosonic SA Pty Ltd) and his South African company was a preferred installer for Wild & Marr, the South African Harmon International distributor as well as EOH Intelligent Infrastructure (Pty) Ltd. James has project managed many international sites, specializing in commercial audio and video installations and is thus the face that you'll regularly see on site, covering the technical aspects of our shows.

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