Private infrastructure has long been sold to institutional investors as a separate allocation: essential assets, relatively predictable revenues, partial protection against inflation and returns less volatile than those of buyout. But infrastructure funds now invest in service companies, growth platforms, data centers and complex projects. Their value-creation strategies sometimes look very much like traditional buyout. Does the distinction still make economic sense?
The question is not merely semantic. It shapes the allocation policies of pension funds and insurers, the return targets of managers, the way risk is measured and, ultimately, the treatment investors give to an asset class presented as being in a category of its own.
A distinction that rests first on the economics of the assets
Buyout means acquiring companies, improving their performance and selling them several years later. Private infrastructure uses largely the same vehicles and financial techniques: closed-end funds, LP commitments, management fees, carried interest, leverage and asset sales. It would be artificial to claim that the two businesses run on entirely different management models.
A first difference does show up in fund life. According to the fund-terms database of the law firm Goodwin (November 2024), 56% of Private Equity funds have a ten-year term, while half of infrastructure funds are designed to run for 12 years or more. Cleary Gottlieb adds that closed-end core and core-plus funds often have a term of around 15 years, extensions included, sometimes 15 to 20 years or more, whereas value-add and opportunistic funds resemble a classic Private Equity fund in both term and holding period. Fund life therefore follows the same fault line as the hypothesis set out below: core is a long-duration product, value-add is a buyout product.
One caveat: fund life is a contractual ceiling, not an actual duration. Buyout funds routinely extend their term when exits are slow to come.
The historical difference lies above all in the underlying assets. Power grids, water distribution, transport infrastructure and concessions often combine high barriers to entry, long useful lives, demand that is relatively insensitive to the business cycle and, in some cases, contracted, indexed or regulated revenues. These features can make their cash flows more predictable than those of an industrial or consumer business exposed to competition.
But they are neither universal nor automatic. A toll road exposed to traffic, a regulated network, a merchant power plant and a data center exposed to technological change do not carry the same risk. The right unit of analysis is therefore not the “infrastructure” label, but the combination of demand, contracts, regulatory framework, debt, reinvestment needs and terminal value.
Fundraising success masks a striking concentration
In 2025, according to McKinsey using Preqin data, infrastructure funds raised $200 billion, up from $126 billion in 2024, an increase of 58%. Over the same period, Bain describes an overall private capital market that was flat and a decline in buyout fundraising. At first sight, infrastructure seems to enjoy an appetite that buyout no longer commands.
The reality is less simple. PitchBook counts, within its broader real assets category, ten funds of $5 billion or more that together raised $127.9 billion in 2025, about 60% of the category total. Bain simultaneously reports a 27% drop in the number of infrastructure funds closed, despite a 58% rise in the amounts raised. The record owes much to the size and timing of mega-funds, not to a growing number of teams able to raise capital.
2026 marks a turning point. According to Infrastructure Investor, fundraising in the first half came to $40.8 billion, against $126.3 billion a year earlier. Infralogic confirms the order of magnitude over nine months: $97.2 billion in 2026, against $159.5 billion in 2025. Concentration shows up clearly in the third quarter: of $65.5 billion in final closes, almost two thirds (64.5%) came from just three funds, KKR Global Infrastructure Investors V, Partners Group Direct Infrastructure IV and Energy Capital Partners VI. Excluding those three funds, the quarter totals only $23.2 billion. Figures vary with databases and definitions, but the finding is robust: less capital, and ever more concentrated.
The shift toward value-add changes the nature of the risk
Infrastructure is traditionally segmented into core, core-plus and value-add. In core, most of the value is supposed to come from mature assets and recurring cash flows. Core-plus adds more operational or commercial risk. Value-add involves transformation, development, add-on acquisitions or growth investment.
Capital is moving toward the riskiest strategies. According to Infrastructure Investor, in the first half of 2026 value-add accounted for 52% of capital raised, against 20% for core-plus and 9% for core. These are shares of fundraising in a given period, not shares of global assets under management or of all investments made. It would be wrong to conclude that 91% of existing infrastructure is no longer core.
The change is nonetheless significant. McKinsey describes a widening of the investable universe to infrastructure-related services and to assets that do not always fit the classic definition of the sector: data center maintenance, pipeline inspection and even, in some classifications, billboards or pharmacies. Value creation then depends less on the yield of an existing asset than on the execution of an operating plan.
This is precisely where the line with buyout blurs. Building a platform, making acquisitions, cutting costs, growing revenue and selling at an attractive multiple are methods common to both worlds. A difference may survive in the resilience of demand or in the contracts, but it has to be demonstrated asset by asset.
Energy and data centers: essential assets, new risks
Investment needs are enormous. McKinsey puts the global infrastructure investment required by 2040 at $106 trillion, including $23 trillion for energy, and cites nearly $7 trillion for data centers by 2030.
Data centers illustrate the ambiguity particularly well. Some benefit from long-term contracts with strong tenants. But they can also carry risks of customer concentration, power costs, grid connection, technological obsolescence, overcapacity and refinancing. A physical infrastructure that the digital economy cannot do without is not necessarily a low-risk investment.
Energy calls for the same caution. Regulated networks are not the same as power plants exposed to market prices, projects under construction or renewable development platforms. In each case, returns depend on different parameters: tariffs, offtake contracts, interest rates, construction costs, permits, energy prices and exit conditions.
The sale of Aligned Data Centers, valued at $40 billion in the data cited by Bain, is telling of how porous the categories are: this major transaction, which came out of the infrastructure world, appears in buyout statistics. The same asset can thus feed two different market narratives depending on the nature of the deal and the classification used.
Are returns really different?
This is the decisive question, and also the one that public data answer least clearly.
McKinsey’s Global Private Markets Report 2025 puts the aggregate net IRR of infrastructure at 6.1% in 2024, after 8.5% in 2023, and cites a median of 9.3% for certain 2012-2021 vintages. These figures cannot be set directly against buyout returns without aligning vintages, geography, currency, fees, stage of maturity and calculation methods.
Two comparisons do exist in the same source, on an identical scope and method. McKinsey calls infrastructure the best-performing private asset class of 2024, with that 6.1% net IRR, which is also its lowest level since 2011. And for the 2012-2021 vintages, the spread between performance percentiles is 8 points in infrastructure against 15 points in Private Equity. In other words: a modest median return, but half the dispersion. That is the strongest argument for a separate allocation.
McKinsey’s European study also notes that listed European infrastructure companies beat the market over 2014-2019 (total shareholder return, dividends included, of 83% over the period against 36% for “the market,” without McKinsey specifying the index), then markedly underperformed the Euronext 100 over 2019-2025 (35% against 82%). The reversal is a useful gauge of the sector’s sensitivity to interest rates and the cycle.
To settle the question properly, one would need to compare, vintage for vintage, net IRRs, capital multiples (TVPI), actual distributions (DPI), losses, dispersion across managers and performance after adjusting for leverage. Above all, one would need to separate core, core-plus and value-add instead of treating infrastructure as a single block. The sources gathered here do not yet allow that full comparison.
Risk is just as tricky to assess, and valuations cut both ways. On one hand, an EDHEC survey of 79 institutional investors, conducted in 2023-2024 and published in August 2025, finds that 76% of them sell infrastructure assets above the last net asset value, with typical premiums of 6% to 20%: NAVs would thus tend to be conservative. On the other, more than 60% of respondents rely mainly on management forecasts, only 28% revalue every quarter and 32% adjust their values in periods of stress. This means that the low volatility reported for the asset class partly reflects slow and rarely challenged valuation practices.
Liquidity: the promise of income is no substitute for distributions
One of the traditional arguments for infrastructure is its ability to generate steady income. But cash flows produced by the assets do not automatically turn into distributions to LPs. They may go to debt service, maintenance, growth capex or acquisitions.
Data cited by McKinsey show a weakening of five-year DPI for some recent vintages: the median for the 2020 vintage is 13%, against levels close to 40% for mid-2010s vintages. This comparison should be read with care, since market conditions, fund composition and strategies may differ, and because longer funds mechanically distribute later.
Is a separate allocation still justified?
For an institutional investor, a stand-alone asset class is justified if it offers an identifiable combination of return, risk, liquidity and diversification that cannot be obtained as efficiently elsewhere.
Infrastructure can meet that test. A portfolio of regulated networks, concessions or assets backed by long contracts can carry economic exposures different from those of a diversified buyout portfolio. Asset duration, revenue structure and certain contractual protections are genuine distinguishing features.
It is far less obvious that a value-add fund specializing in buying and transforming infrastructure-related service companies delivers the same diversification. If its performance depends mainly on EBITDA growth, acquisition discipline, leverage and the exit multiple, it shares several risk drivers with buyout. The sector label is no longer enough to justify a separate allocation bucket.
LPs should therefore ask managers more precise questions than “what share of the portfolio is invested in infrastructure?”: what proportion of revenue is contracted or regulated? What exposure to volumes and market prices? What share of the expected return comes from distributions, operational growth, deleveraging or the exit multiple? What are the construction, technology and refinancing risks? What economic correlation with the rest of the portfolio?
France offers an additional perspective. France Invest, the French Private Equity association, reports €6.6 billion of infrastructure fundraising in the first half of 2026, against €3.5 billion a year earlier, while investments fell from €5.3 billion to €3.8 billion. This divergence is a reminder that strong fundraising says nothing, on its own, about the quality or pace of future investment. It reinforces the need to look at assets and strategies rather than fundraising statistics alone.
Conclusion — One asset class, or several strategies under a single name?
Infrastructure has not become buyout. The features of many assets — natural monopolies, concessions, regulated or contracted revenues, essential services — continue to justify a distinct analysis. But infrastructure is not an economically homogeneous category either.
The widening of its scope and the rise of value-add strategies bring part of the funds closer to the methods and risks of buyout. The concentration of fundraising on a few platforms and the growing sophistication of vehicles reinforce this trend, without proving it on their own.
The hypothesis this analysis allows us to put forward is the following: the word “infrastructure” covers two economies. Core is an income asset, regulated or contracted, whose appeal lies in its lower dispersion. Core-plus and value-add amount to sector buyout: platforms, add-on acquisitions, execution, exit on a multiple. And it is toward this second group that capital is flowing (52% and 20% of fundraising in the first half of 2026).
A separate allocation is justified for the first economy. For the second, it mostly risks masking additional exposure to the same risk factors as buyout, under a reassuring sector label. The question to put to managers is therefore simple: which of the two are you selling, and why charge for it as an asset class of its own?
Sources
- Goodwin, How Long Do Closed-Ended Funds Last?, November 2024.
- Cleary Gottlieb, Seven things to know about infrastructure funds, undated page.
- Bain & Company, Global Private Equity Report 2026, February 2026, pp. 8, 11, 16-17, 24, 26.
- McKinsey & Company, Global Private Markets Report 2026 — Infrastructure: Investing to support global growth, March 2026, pp. 2-4, 10.
- McKinsey & Company, Global Private Markets Report 2025 — Braced for shifting weather, May 2025, pp. 54, 60-63, 86.
- McKinsey & Company, European infrastructure is evolving — and investors are, too, March 2026, pp. 5, 7.
- EDHEC Infrastructure & Private Assets Research Institute, Research for Institutional Money Management, supplement to Pensions & Investments, August 2025, pp. 4-6.
- PitchBook, a Morningstar company, Q2 2026 Global Private Market Fundraising Report, September 2026, p. 15.
- Infrastructure Investor, Fundraising Report H1 2026, July 2026.
- ION Analytics / Infralogic, Global Fundraising Report 3Q26: Mega fund closes driving volumes, October 13, 2026.
- France Invest / Grant Thornton, Activité des acteurs du capital-investissement français — 1er semestre 2026 (in French), October 2026, pp. 3, 7, 39-41, 44, 46.
