About Protect Margin
Specialist procurement cover for Finance Directors
Protect Margin is the trading name of David Wilshin, a franchise partner of Auditel (UK) Ltd — the UK's leading cost management and procurement consultancy network. We work exclusively with Finance Directors of 50–500 person UK businesses, acting as an outsourced procurement function for indirect spend.
About David
David Wilshin has spent his career helping Finance Directors recover margin from indirect spend. As a franchise partner of Auditel (UK) Ltd — a network of over 200 specialist procurement consultants — David brings national benchmarking data, established supplier relationships, and category expertise across energy, telecoms, waste, water, insurance, and print to every engagement.
Before joining the Auditel network, David worked in commercial and financial roles across a range of sectors, giving him a direct understanding of the pressures Finance Directors face and the language boards respond to.
He is based in Fareham, Hampshire, and works with businesses across the UK.
Network
Part of the Auditel network
Auditel (UK) Ltd is the UK's leading cost management and procurement consultancy network, with over 200 franchise partners operating nationally. Founded in 1994, Auditel has helped thousands of UK businesses reduce indirect spend through competitive tendering, supplier renegotiation, and ongoing procurement management.
As an Auditel franchise partner, Protect Margin clients benefit from Auditel's national benchmarking database — giving David access to current market rates across all indirect categories — as well as Auditel's established supplier relationships and specialist category teams.
Visit auditel.co.uk →What the network provides
National benchmarking database across all indirect categories
Established supplier relationships and negotiated framework rates
Specialist category teams for complex categories
Over 200 franchise partners operating across the UK
Founded 1994 — 30+ years of procurement expertise
Process
How we work
01
Margin Protection Score
A free 10-minute diagnostic that benchmarks your indirect spend across six dimensions and produces a board-ready risk score. This is the starting point for every engagement.
02
Category review
A structured competitive tender or supplier renegotiation for each category where savings are identified. Typically takes 4–6 weeks per category. Gain-share fee structure — no saving, no fee.
03
Ongoing procurement cover
Continuous management of all indirect categories so contracts are always competitive, not just at renewal. Monthly reporting gives the board visibility over indirect spend performance.
Coverage
Categories we cover
Energy
Gas & electricity — competitive tendering, contract management, consumption analysis
Telecoms
Lines, broadband, mobile, hosted telephony — bill audit, market benchmarking, retender
Waste
Collection & disposal — market testing, contract renegotiation, waste reduction
Water
Tariff review, retailer comparison, consumption optimisation since 2017 deregulation
Insurance
Broker market access, competitive review, cover benchmarking
Print & MFDs
Managed print contracts, cost-per-copy benchmarking, device rationalisation
Facilities
Cleaning, security, maintenance — supplier consolidation and contract review
Start with the free diagnostic
The Margin Protection Score takes 10 minutes and tells you exactly where your indirect spend is at risk. No obligation, no cost.
Protect Margin is a trading style of Corporate Carbon Ltd, a franchise partner of Auditel (UK) Ltd. Company No. 13724257. Registered office: Kintyre House, 70 High Street, Fareham, PO16 7BB.