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In the mountainous surrounds of Hong Kong, road tunnels provide vital commuter links. Each day, more than 90,000 vehicles can pass through the Serco-operated Lion Rock Tunnel
In such a busy system, the safe, smooth-running of the tunnel is down to co-operation and trust


We improve services by managing people, processes, technology and assets more effectively.


As part of Serco's commitment to sustainable procurement, we are continually looking to improve the way that we work with our suppliers. The full Supplier pack is available to download here: Serco Supplier Pack


We have introduced an eInvoicing system which means that you can submit your invoices to us electronically.  Paperless invoicing has significant benefits for you including

  • Reducing the time it takes to get your invoices to us
  • Providing immediate confirmation that your invoice has been submitted for processing
  • Enabling you to see the status of your submitted invoices on-line
  • Reducing your carbon footprint by removing paper from the process

Additional Information for Suppliers

Payment queries

Contact Serco's Shared Service Centre Accounts Payable Helpdesk via +44(0)845 337 3166 or Email: accountspayable.helpdesk@serco.com.  Please note, that in the majority of cases, invoices are only paid when a valid purchase order number is supplied with the invoice.

Standard payment terms

Payment Terms are negotiated on individual agreements. Where no agreement is in place we will use our Standard Purchase Order Payment Terms.

Serco's standard Purchase Order payment terms are 30 days from the date the invoice is received by our Shared Service Centre. Download the full payment terms and conditions here.

Becoming a supplier to Serco

If you are interested in working with Serco, please send your details to procurement@serco.com. Your details will be made available to the Procurement & Supply Chain team for future reference. 


Our approach to procurement at Serco has four main strands

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Supplier Travel Policy

View Supplier Travel Policy (pdf 95KB)

Last Updated: 20 Jul 2016