External Supplier Audit (Lot 1 & Lot 2)

What this is

Caledonian Sleeper Limited is procuring external supplier audit services across two lots: Lot 1 covers an ongoing Supplier Audit Programme for CAF and Alstom suppliers (36 months: 24 fixed + 12 option); Lot 2 covers a CSL/GBRf Joint Interface Audit (24 months: 12 fixed + 12 option). Bidders must demonstrate audit methodology, relevant experience, case studies, key personnel, and stakeholder engagement capabilities. The procedure is restricted.

Key points

• Restricted procedure — shortlisting stage before ITT
• Lot 1: Supplier Audit Programme (CAF/Alstom) 36 months; Lot 2: Joint Interface Audit (CSL/GBRf) 24 months
• Selection questionnaire deadline 13 July 2026 via Public Contracts Scotland

Who can bid

Restricted procedure — initial selection stage (SQ/PQQ) assesses relevant audit experience, methodology, case studies, key personnel and financial standing before ITT is issued to shortlisted candidates.

How it is scored

Quality 60% · Price 40% MEAT basis: 60% quality (methodology 20%, experience 20%, case studies 20%, personnel 20%, stakeholder engagement 20%) and 40% price. Applies to both lots.

How to submit

Electronic submission via Public Contracts Scotland: www.publiccontractsscotland.gov.uk. Restricted procedure — submit Selection Questionnaire (SQ) by deadline.

Clarifications

Via Public Contracts Scotland portal Q&A facility. Contact Caledonian Sleeper Limited procurement team.

Contract period

Lot 1: 36 months (24 months fixed + 12 months option) — Supplier Audit Programme for CAF and Alstom. Lot 2: 24 months (12 months fixed + 12 months option) — CSL/GBRf Joint Interface Audit.

Classification

CPV 79212000 — Auditing services Scotland