Fractional procurement gives organisations access to senior procurement expertise without requiring a full-time appointment. The model is already well established in finance, where fractional CFOs support organisations that need strategic leadership but cannot justify, or do not yet require, a permanent executive hire. The same logic applies to procurement.

Vanguard provides this support through a small number of retained client engagements at any one time. Each engagement has a defined monthly commitment, a clear scope and agreed deliverables. The client receives senior procurement judgement, active delivery and commercial challenge in the areas where it will create the most value.

The model is not appropriate for every situation. Organisations requiring a full-time executive presence may need a permanent appointment or a separately scoped transformation programme. But for many NHS trusts, housing associations, public sector bodies and commercial organisations, fractional procurement provides a practical route to senior capability at a cost and level of commitment that is easier to justify.


The Numbers Make the Decision Significantly Easier

The financial case for the fractional model is straightforward. Organisations with a senior procurement gap typically consider three routes: recruit permanently, engage an interim through an agency, or retain fractional senior expertise. The agency interim route is often the fastest response, but it is frequently the most expensive and least predictable — particularly where continuity, cultural fit and measurable delivery are critical.

Option 1Substantive Senior Procurement Hire Option 2Day-Rate Interim Cover Option 3 — VanguardEmbedded Fractional
Salary
£66,582 — £91,609
Senior procurement, NHS Band 8b — 8c equivalent
Day Rate
£500 — £700 / day
Senior procurement interim
Annual Retainer
From £75,000 / annum
Scoped by engagement
Employer NI (15%)
£9,237 — £12,991
Agency Margin
15% — 25% added on top
Employer NI
None (off payroll)
Pension Employer Contribution¹
£9,574 — £13,173
Employer NI
None (off payroll)
Agency Margin²
None (direct) / minimal framework fee via Bloom
Recruitment Fee
£10,000 — £15,000
Recruitment
Built into agency margin
Recruitment Cost
None
Equipment & Workspace
£3,500 — £5,000
Equipment & Workspace
None (contractor provides)
Equipment & Workspace
None
Onboarding
2 — 3 months to full productivity
Onboarding
2 — 4 weeks to productive delivery
Time to Productive Delivery
Immediate
TOTAL Year One
£99,000 — £138,000
TOTAL Year One
£126,500 — £192,500 (inc. agency margin)
TOTAL Year One
From £75,000
Experience Profile
Variable — dependent on candidate
Experience Profile
Variable — at this rate range, deeply experienced director-level resource is not reliably available
Experience Profile
20+ years senior procurement leadership at director level — NHS, central government, housing and international giga-projects

¹ Pension employer contribution shown at NHS Pension Scheme Trust portion of 14.38%. Equivalent on-costs apply across other sectors at varying rates.

² Public sector engagements via the Bloom Procurement Framework include a small framework access fee that is materially below typical agency margin levels. Direct engagement is fee-free.

The comparison is not simply about cost. It is about securing senior procurement capability at the right level of commitment, without recruitment delay, employer obligations, agency margin or unnecessary overhead. Against a permanent hire, a Vanguard retainer can reduce first-year cost materially. Against the day-rate interim market, the value differential is more significant still — at typical senior procurement day-rate levels, deeply experienced director-level resource is not reliably available. The fractional model closes the same capability gap with a defined scope, agreed rhythm and clear commercial accountability.


How an Engagement Works in Practice

01

Initial Conversation

A thirty-minute call to understand your procurement situation, current capability, priorities and what useful support would look like. No preparation is required.

02

Proposal & Scope

Vanguard provides a written proposal setting out the recommended service tier, monthly scope, initial deliverables and commercial terms.

03

Retainer Agreement

A straightforward agreement confirms the monthly commitment, scope, fee, notice provisions and confidentiality arrangements. For public sector clients, the relevant framework route is confirmed at this stage.

04

Active Delivery

Delivery begins against an agreed workplan. Engagement days are structured around your business calendar, with email and telephone access available within agreed response times.

05

Review & Renewal

Progress is reviewed formally during the engagement, with scope adjusted where required. Renewal discussions begin in good time so both parties have visibility of the forward position.


The Practical Detail

Can a public sector organisation engage Vanguard without running a full tender process?

Yes, subject to the organisation's own governance requirements. For lower-value engagements below the relevant financial thresholds under the Procurement Act 2023, a public sector organisation may be able to engage Vanguard directly, subject to its internal standing financial instructions.

For engagements above or below threshold, public sector organisations can also engage Vanguard through Bloom's NEPRO³ framework, operated by NEPO and available to UK public sector bodies. Vanguard is registered as an accredited supplier on the framework, which provides a compliant route to engagement through direct award or further competition without the need for a standalone tender process.

Vanguard is also progressing access to an NHS Shared Business Services framework route to support future engagement by NHS and wider public sector organisations.

Can a private sector company engage Vanguard directly without any formal procurement process?

Yes. Private sector organisations are not subject to public procurement law and can engage professional services on the commercial terms they consider appropriate. There is no framework requirement, no standstill period and no regulatory obligation to run a competitive process.

A commercial organisation can move from initial conversation to agreed scope and signed engagement quickly. The only requirement is mutual agreement on scope, terms and fees.

Is Vanguard IR35 compliant for public sector engagements?

Vanguard Procurement Limited operates as an independent business-to-business consultancy and structures its public sector engagements to support an outside-IR35 position wherever the nature of the assignment permits. The Bloom supplier terms state that no employer/employee relationship is created between the supplier, Bloom or the customer, and require the supplier to remain an independent contractor, determine its own personnel, use its own equipment where appropriate, and retain control over how, where and when the professional services are delivered, subject to the practical requirements of the agreed Statement of Work.

Each engagement is assessed on its own facts, including the Statement of Work and actual working practices. Vanguard will work with the client to ensure the contractual documentation, delivery model and status determination are consistent with the off-payroll working rules.

How are conflicts of interest managed when Vanguard acts for multiple clients simultaneously?

Vanguard maintains appropriate information barriers between concurrent client engagements. Client-specific information, supplier pricing and commercially sensitive data are not shared between clients.

Vanguard does not act for two organisations that are in direct commercial competition with each other on a live procurement exercise. Any specific conflict concerns are addressed transparently at the proposal stage before an engagement begins.

What happens at the end of the commitment period?

Tier 1 and Tier 2 retainer agreements carry a minimum commitment period of six months from the commencement date. At the end of the initial term, the agreement concludes unless both parties agree to extend.

Tier 3 engagements carry a twelve-month commitment with built-in continuity planning and handover from week one. The engagement is structured for either a clean exit or seamless extension depending on where the programme stands — extension by mutual agreement is straightforward where the work warrants continued senior oversight.

What professional indemnity insurance does Vanguard carry?

Vanguard Procurement Limited carries professional indemnity insurance with a limit of indemnity of £1,000,000 for any one claim. The policy is arranged through Qdos Broker & Underwriting Services Limited on behalf of HCC International Insurance Company PLC. The policy provides worldwide geographical cover and worldwide jurisdiction excluding the USA and Canada. A current certificate of insurance is available on request.

Can additional days be purchased outside the retainer scope?

Yes. Where a client has an urgent or significant requirement outside the agreed monthly scope — such as a time-critical tender, major negotiation or unexpected commercial issue — additional days can be agreed at the relevant day rate.

This prevents scope creep within the retainer while giving clients a clear mechanism to flex up when additional support is genuinely required.

Bloom Accredited Supplier

Vanguard Procurement Limited is an accredited supplier on Bloom's NEPRO³ framework — a fully compliant route to engagement available to all UK public sector bodies. Direct award and further competition routes are both available.

Still have a question?

The simplest answer is a conversation.

Get in Touch

Ready to discuss how Vanguard can support your organisation?

Get in Touch