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If you have a specific query, would like a quote for your clinical trial, or just want to give some feedback on this website, we would be pleased to hear from you.

You can either e-mail us directly, or fill in the form below.


+44 (0)20 3488 5064

Sealed Envelope Ltd, 501 Clerkenwell Workshops, 27-31 Clerkenwell Close, London EC1R 0AT, UK

Sealed Envelope Ltd is registered in England and Wales number 4338315. Registered address: Trojan House, 34 Arcadia Avenue, London, N3 2JU, UK. VAT number GB 788 2289 71