THE PFI RECKONING · ARTICLE 5 OF 12
The Investor Asymmetry: Ten Firms Own Half the UK's PFI Contracts
The public sector approaches PFI expiry one contract at a time. The private sector approaches it across a portfolio. That structural difference in how the two sides prepare, resource, and execute handback is the single largest source of commercial disadvantage for authorities. This article examines who actually owns UK PFI contracts in 2026, why the concentration of ownership matters, and what it means for every authority negotiating handback against an investor that has done this many times before.
Who actually owns your PFI contract
Most PFI contracts were originally procured from construction and services companies: Carillion, Balfour Beatty, Interserve, Skanska, Bouygues, John Laing, Amey, Cofely, Sodexo. Over 25 years, the equity in those contracts has been sold, refinanced, and consolidated. The company that built the hospital is rarely the company that owns the SPV today.
50%+ of all UK PFI contracts are now owned by approximately ten private investors. NAO analysis.
The secondary market in PFI equity has been active since the early 2000s. Infrastructure funds, pension funds, and specialist PFI investors have acquired equity stakes from the original construction partners, often at significant premiums to the original investment. The result is a concentrated ownership structure where a small number of sophisticated financial investors hold the majority of the UK’s PFI portfolio.
These investors include names that most authorities’ estate teams will not recognise. They are infrastructure funds, not facilities management companies. They manage financial returns, not buildings. Their relationship with the authority is contractual and commercial, not operational. In many cases, the authority does not know who the current equity holder is because the sale happened through a secondary market transaction that did not require the authority’s consent.
The company that built the hospital is rarely the company that owns the SPV today. The authority may be negotiating handback with a financial investor it has never met, operating from a jurisdiction it has no relationship with, with objectives that are entirely different from the original procurement partner.
The SPV is not the contractor
This is the single most important structural distinction in the PFI model, and it is the one most authority teams still get wrong. Many senior leaders treat the SPV as the helpdesk. In reality the structure is layered, and each layer has different incentives, different capabilities, and different authority to agree changes.
The SPV (Special Purpose Vehicle) holds the project agreement with the authority. It is the contracting entity. It is typically a shell company with no employees, no operational capability, and no assets beyond the contract itself and the cashflows it generates.
The FM provider delivers operational services under a subcontract to the SPV. It employs the maintenance staff, manages the helpdesk, and delivers the day to day service. Its relationship is with the SPV, not directly with the authority (though in practice it interacts with authority staff daily). The FM provider’s commercial interest is in retaining its subcontract and maximising its own margin, which may or may not align with the SPV’s priorities at expiry.
Equity investors own the economic interest in the SPV. They receive dividend returns after debt service and operating costs. Their focus is yield and terminal position. On secondary market transactions, the current equity holder may have bought the stake specifically for its cash flow profile and planned exit value, not for any operational interest in the estate.
Senior lenders hold the debt that financed the original construction. They protect their position through covenants, reserve accounts, and step in rights that allow them to take control of the SPV if it defaults. Once senior debt is repaid, typically two to five years before expiry, the lender exits and the financial discipline it imposed exits with it.
The original construction subcontractor, often long departed after the defects liability period, holds residual design and build liability. Specialist operation and maintenance subcontractors hold operational risk for specific systems such as lifts, fire protection, BMS, and medical gas.
Negotiations during expiry happen at investor and SPV level, not at operational level. The FM provider cannot agree to lifecycle fund reconciliation. The equity investor cannot agree to remediation works. The lender cannot agree to handback condition. Understanding who you are talking to, what they can agree, and what their incentive structure is, is a prerequisite for effective negotiation. An authority that treats every conversation as a conversation with the helpdesk will miss where the real decisions are being made.
Many authority teams still treat the SPV as the helpdesk. In reality the PFI structure is layered: SPV, FM provider, equity investors, lenders, and subcontractors each hold different risk, different authority, and different incentives. Negotiations at expiry happen at investor level. Understanding who you are talking to is a prerequisite for everything.
The Association of Infrastructure Investors in Public Private Partnerships (AIIP) published an industry report in September 2024 noting that approximately 150 PFI contracts with £6 billion in capital value will expire during the current Parliament. This is the investor side’s perspective on the scale of the expiry challenge. It confirms that investors are preparing systematically across their portfolios. The authority’s preparation should match.
Why concentration of ownership matters
The portfolio effect
An investor that owns equity in 30 PFI contracts manages expiry across a portfolio. They see patterns. They develop playbooks. They know which contractual clauses are enforceable and which are not. They know which survey methodologies favour the SPV and which favour the authority. They know how long an authority will negotiate before accepting a discounted settlement. They have done this before. The authority has not.
Dedicated exit teams
The largest PFI investors have dedicated teams managing contract expiry. These teams include commercial managers, lawyers, technical advisers, and financial analysts whose sole focus is optimising the exit from each contract. They coordinate across contracts, sharing intelligence on what works, what precedents have been set, and where authorities have conceded ground.
The authority, by contrast, is assembling a team for the first time for a process it has never managed before. The asymmetry is not just in knowledge. It is in preparation, resourcing, and institutional experience.
18% of all UK PFI contracts are held by the ten public authorities with the greatest PFI involvement. The public sector is fragmented where the private sector is concentrated.
Legal and advisory resource
PFI investors retain specialist legal firms on standing arrangements. They have access to the same small group of PFI advisory firms that authorities use, and in many cases have used those firms on previous transactions. The authority hiring an adviser for the first time is working with a firm that may have advised the investor on a different contract last year. The market is small enough that this dynamic is unavoidable.
The White Fraiser Report on PFI sector behaviours, relationships, and disputes (IPA, July 2023) flagged a concerning trend of consultants operating on deduction contingent fee arrangements, where the adviser’s payment is tied to the value of deductions recovered from the SPV. This incentivises adversarial behaviour rather than good outcomes and can escalate disputes that might otherwise have been resolved commercially. Authorities should understand the fee basis of their advisers and consider whether the incentive structure is aligned with the authority’s strategic objectives rather than with maximising short term deduction recovery.
The intelligence gap
The asymmetry is not only in resource. It is in information. Investors typically hold stronger lifecycle visibility, deeper contractual interpretation, historic dispute knowledge across their portfolio, and SPV board level reporting that gives them a clear picture of the financial position of every contract approaching expiry. Authorities, by contrast, frequently have incomplete records, poor document retention, missing asset data, and fragmented governance history. The investor knows more about the authority’s contract than the authority does. That is not a resource problem. It is an intelligence problem.
The ten largest PFI investors take a coordinated, portfolio wide approach to expiry. The ten largest public authorities oversee just 18% of all contracts. The asymmetry is structural, not accidental.
The refinancing dimension
Many PFI contracts were refinanced during their operational term. Refinancing typically changed the debt structure, sometimes the equity structure, and occasionally the financial model assumptions. In some cases, refinancing generated significant gains for investors that were shared with the authority under gain sharing provisions. In other cases, the gains were retained entirely by the investor.
What refinancing also did was change the financial dynamics of the final years. A refinanced contract may have a different debt repayment profile, different reserve requirements, and different cash flow characteristics from the original deal. The lifecycle fund may have been affected. The investor’s return expectations may have shifted. The authority may have limited visibility of any of this because the refinancing was a corporate transaction between the SPV and its lenders, not a contract variation requiring authority consent.
The practical consequence is that the authority may be negotiating handback against an SPV whose financial position and incentives it does not fully understand. The contract governs the service obligations. It does not give the authority a window into the SPV’s current financial structure, its return expectations, or its strategic priorities for the final years.
Refinancing changed the financial dynamics of many PFI contracts without changing the service obligations. The authority may be negotiating handback against an SPV whose financial position and incentive structure it does not fully understand.
How the incentive structure inverts in the final years
For the first 20 years of a PFI contract, the SPV has a commercial incentive to maintain the asset. Deductions for poor performance reduce revenue. Lifecycle obligations are funded through the unitary charge. The payment mechanism aligns the SPV’s financial interest with service delivery.
In the final five years, this alignment breaks down. The SPV’s interest shifts from maintaining revenue to maximising the residual value of the investment. Every pound saved on maintenance, lifecycle works, and staffing in the final years flows to the investor’s return. The payment mechanism was designed to govern ongoing operations, not to enforce handback condition. The authority’s contractual leverage through the payment mechanism weakens precisely when it matters most.
Article 2 of this series examines the lifecycle fund dynamics in detail, including how deferred replacements in the final years create the capital liability the authority inherits at handback. Article 3 examines how late condition surveys compound the problem by giving the SPV time to argue that the asset is fit for purpose despite deferred maintenance.
The final years playbook
Experienced PFI investors manage the final years systematically. Reduce discretionary maintenance. Defer lifecycle works where the contract allows ambiguity. Staff the contract with the minimum team required to avoid payment deductions. Manage the condition survey process to limit remediation scope. Offer a cash settlement for disputed items rather than completing physical works. Retain any lifecycle fund surplus. Exit cleanly.
None of this is illegal. Much of it is contractually permissible. All of it is commercially rational from the investor’s perspective. The authority’s only defence is early preparation, independent evidence, and a clear understanding of its own contractual rights.
The investor’s final years playbook is commercially rational and largely contractually permissible. The authority’s only defence is early preparation, independent evidence, and a clear understanding of its own contractual position.
What authorities can do about the asymmetry
The structural asymmetry between PFI investors and public sector authorities cannot be eliminated. It can be reduced. The authorities that manage the asymmetry well share common characteristics.
They start early
Seven years before expiry, not four. NISTA’s guidance is explicit: expiry planning should begin at the seven year mark with formal Senior Responsible Owner (SRO) governance and a structured programme covering condition surveys, lifecycle fund reconciliation, data stocktake, workforce planning, and commercial strategy. The earlier the authority engages with the handback process, the more time it has to build its evidence base, understand its contractual position, and develop its commercial strategy before the investor’s exit playbook begins to take effect.
They invest in their own intelligence
Independent condition surveys, lifecycle fund audits, and financial modelling of the post PFI operating environment. The authority that relies on the SPV’s data is negotiating with the other party’s evidence. Article 3 and Article 4 of this series examine what independent evidence and internal capability look like in practice.
They know who they are negotiating with
Understand the current ownership structure. Identify the equity holder. Understand their portfolio. Research how they have managed handback on other contracts. The investor knows the authority’s position. The authority should know the investor’s.
Use the rights under the project agreement to demand a full ownership structure of the SPV, including the beneficial owner. Many authorities do not know who ultimately owns the equity in their contract because secondary market transactions do not always require authority consent. Establishing the identity, portfolio, and track record of the current investor is basic commercial due diligence. It should happen at the start of expiry planning, not when the negotiation is already underway.
They coordinate across the public sector
Where multiple authorities are negotiating with the same investor, there is an opportunity to share intelligence, align strategies, and reduce the information asymmetry. This happens informally in some cases. It rarely happens systematically. The NAO and NISTA have encouraged greater coordination but the public sector’s fragmented structure makes this difficult in practice.
The investor asymmetry is the backdrop against which every other PFI expiry challenge plays out. The lifecycle fund dispute, the condition survey, the capability gap, the data handover, the TUPE transfer. Each of these is shaped by the fact that the authority is negotiating against a counterparty that is better resourced, more experienced, and strategically coordinated. Investor strategy is also shaped by the dual benchmark that authorities must hold the asset against at handback: contractual output specification plus current statutory and regulatory standards. The investor’s incentive is to argue the contractual standard alone; see Article 7 for the sector-by-sector framing of why the statutory standard cannot be ignored.
The biggest misconception in PFI expiry is believing the public sector is negotiating with a building. It is negotiating with capital. And capital is usually far better prepared. The authorities that recognise this early have a chance to rebalance the relationship. The ones that do not often discover it at the point of dispute.
PFI Reckoning Reports
This article represents Baachu Works Limited’s independent analysis based on publicly available information, NAO and NISTA reports, BAILII case law, and Baachu’s commercial experience. It is not legal or financial advice. Baachu Works Limited has no commercial relationship with any SPV, investor, FM provider, or PFI advisory firm referenced in this series.