In private capital, brand is too easily mistaken for identity — a tombstone, a fund deck, a track-record page. But brand is doing one thing: earning trust. Trust is brand made measurable — the one signal LPs, boards, portfolio companies and regulators all read. That’s the North Star this diagnostic is built on.
Private capital just published its numbers. In the UK alone: £199 billion of direct GDP — 7% of the economy — 2.5 million jobs across 12,900 backed businesses. Globally: the second-best year on record for both buyouts ($904 billion) and exits ($717 billion).
The report behind the global numbers names the one thing that now decides returns: "strong EBITDA growth at its portfolio companies — full stop."
Growth at that rate runs on customers who renew, employees who stay, partners who deliver, and regulators and communities who consent. It runs on trust. And almost nobody holding a portfolio is measuring it.
In February 2026, Bain & Company published its 17th annual Global Private Equity Report and called time on the industry's old maths with a rule of thumb: 12 is the new 5. A decade ago, 5% annual EBITDA growth delivered the benchmark 2.5× return — cheap debt and rising multiples did the rest. Today, with borrowing at 8–9%, leverage down to 30–40% and multiples record-high but flat, the same deal only pencils at 10–12%. Multiple expansion powered over half of all buyout returns in the decade to 2021. That lever is gone, and almost 80% of GPs surveyed expect multiples to stay flat.
Why a returns report is a trust story
Three findings in the report turn an industry survey into a trust diagnostic.
One. The growth lever left standing is the one nobody instruments. Bain's prescription for the new era is "full potential due diligence" — a holistic read that integrates five lenses: commercial, technical, operational, AI and digital, and sustainability. Look at that list. The stakeholder ecosystem that must produce the double-digit growth — the customers, the workforce, the partners, the regulators — is not one of the five. The diligence stack reads the financials, the market and the contracts. None of it reads whether the people who decide the asset's future trust it.
Two. Time has turned against the hold. Bain's analysis of fifteen years of buyout vintages finds that IRR starts to stagnate around year seven and declines after that. Average holding periods at exit now hover at — seven years. The industry sits on roughly 32,000 unsold companies worth $3.8 trillion, and 39% of all holdings are now more than five years old. The exits that did clear in 2025 were the "gem" assets; in Bain's words, GPs "had a much harder time moving anything with weaker momentum or an uncertain future." The sorting variable at exit is evidence.
Three. The capital is already reading trust — it just has no instrument. 53% of LPs say they are constrained from new commitments because old ones haven't come back — up 15 points in a year. What reopens the tap is proof: LPs now want "a strategy that can be described in one sentence and backed up with data," delivered by funds that return capital on time. After the global financial crisis, distributing cash on time was a big predictor of who got to raise again. And then there is Bain's quiet sentence about the gap between promise and experience: "All funds will tell you they've already defined who they are and why investors should love them. But their LPs may tell a different story." That is a Connection diagnosis in eight words.
And the bar these drivers are measured against keeps moving. Expectation here isn't fixed — it is what each stakeholder group expects and increasingly needs, and events keep raising it. More than half of LPs say they hold more leverage over GPs than they did twelve months ago. Pension and private-wealth capital is arriving through semiliquid and evergreen vehicles, bringing audiences who have never read a PPM. The FCA has moved from questionnaire to expectation. Measured against a rising bar, a steady score is already slipping. Where that bar is heading is read here from public signal alone, as a hypothesis — one a TrustOS Snapshot is built to test with primary stakeholder research.
The diagnostic — private capital's trust shape in June 2026
Running the TrustOS methodology across the sector at composite level produces this picture.
Clarity — 64. The macro story is crisp and newly quantified. The UK industry now publishes its own economic footprint — £199 billion, 2.5 million jobs — the way a sector defends a licence, and has renamed itself "UK Private Capital" to tell it. But Clarity weakens exactly where the commitment is made: fund by fund. Bain's verdict on the firm-level promise is "too often vague or unconvincing," and "'we sort of do everything' is no longer a persuasive pitch." The sector has a clear story and 12,900 unclear promises.
Connection — 46. The weakest layer, and the widest gap between audiences anywhere in this series. LPs experience a different firm than the pitch describes — Bain says so directly. The 2.5 million people employed through portfolio companies experience ownership through a different story than "investing for a better economy." The political audience reads extraction where the industry reads stewardship. And a new audience is arriving with no prior at all: pension savers, whose capital is being invited in through the DC reforms the industry itself campaigned for. The sector's proof points are not absent — they are disconnected. Returns evidence for LPs, jobs evidence for politicians, conduct evidence for the regulator: never one signal.
Confidence — 50. The sector's native proof is cash, and the cash isn't flowing: distributions have held below 15% of NAV for four consecutive years, a modern-industry record. Top-quartile outperformance is real and evidenced — but the average US fund can no longer verify its claim against the public alternative over ten years. And the regulator has been into the engine room: the FCA's multi-firm review of private market valuations found gaps in accountability, conflict management and independence in the processes behind the marks that fees, performance claims and continuation vehicles all rest on.
Composite trust score: 53. Between Technology & AI's 52 and Social Care's 54 in this series. The Clarity-to-Connection spread is 18 points — almost exactly the series average. Connection is the lowest layer for the tenth time in eleven. The pattern that holds for councils, miners and hospitals holds for the people who own them.
The Integrity layer — other people's money is a conduct standard
For the Energy majors, the Integrity layer became visible when a chair fell. In private capital, Integrity has a quieter surface: the fiduciary architecture.
The paperwork is the conduct standard.
The LPA. The side letter. The valuation policy. The fee calculation. The continuation vehicle in which the firm sits on both sides of its own trade — a structure LPs tolerate, in Bain's reading, about once a year. In this sector the institution's claims aren't brand language — they are fiduciary commitments, contracted, with an LP holding the document.
The regulator has named the architecture it expects.
The FCA's review asked exactly the Integrity question — not "are your valuations right?" but "can you evidence that the system producing them works, on demand?" In the regulator's words, robust processes are those that "could evidence independence, expertise, transparency and consistency." That is the foundation layer of trust, stated as a supervisory expectation.
The non-linear cost is the re-raise.
An Integrity event here doesn't crash a share price — it kills the next fund. In normal times roughly 15% of fund series fail to raise again; in the global financial crisis it was around 20%, and liquidity delivered was the sorting factor. In a sector with no share price, the failed re-raise is the bankruptcy.
Where this lands across the four slices
Climate and infrastructure funds. The fastest-growing fundraising category (up 58% last year) — allocating against assets whose delivery depends on consent. Our Net Zero POV scored that delivery economy and found the same shape: the strongest story, the weakest signal. Trust movement is the leading indicator of delivery risk that term sheets don't yet measure.
Mid-market operating partners. Ten to thirty companies, measured on multiple expansion that no longer comes from multiples — and no instrument between the commercial diligence at entry and the vendor diligence at exit. The first fund to put a comparable trust signal in every portfolio board pack owns a category of evidence its competitors can only assert.
Growth-equity deal teams. Bain's exemplar deal — Hg's $6.4 billion take-private of OneStream — built conviction by hand: technical experts engaged core users, the commercial team "verified that users valued" the product, and "each successful stage led to more value underwritten." Conviction is built from stakeholder evidence. The instrument exists to do that systematically, across all six groups, in the diligence window.
Exit-bound sponsors. Only the gems sold in 2025. Gem status is not an asset class — it is an evidence state: a story that holds when the buyer's diligence goes looking for the leak. The sponsor who measures the trust shape before the process opens chooses what the dataroom proves.
The four operating moves
The Mining and Energy POVs named four operating moves. They translate into private capital like this.
1. Treat the deal thesis as a measured commitment.
The IC memo names what the hold must produce. Run intent-versus-reality against it, per asset, from the first board meeting — the 100-day plan should set the trust baseline alongside the financial one.
2. Architect Connection.
Bain's winners ensure "capital, talent, and investment strategies all tell the same, coherent story." Extend that across audiences: the same evidence, readable by an LP, a board, a regulator and a workforce. Connection is the layer that makes the returns story admissible outside the dataroom.
3. Run the hold on trust cadence.
IRR stagnates at year seven; the quarterly board pack is the cadence trust has to live on. Quarterly, by stakeholder, by asset — produced without scrambling, in the same quarter the valuations are marked.
4. Build the layer that makes evidence cumulative.
Across assets and across funds — so the trust evidenced in one hold compounds into the next raise instead of evaporating at the fund boundary. One signal from distributed inputs; a portfolio-wide view of where trust risk sits; board-grade visibility per company. This is the TrustOS layer.
The window
The 2021–22 mega-vintages hit year five and six in 2026–27 — the exact zone where IRR stops compounding. Around 30% of the fund series you would expect to re-raise haven't yet. The FCA has set its expectations in writing. The IPO window is reopening behind Medline, the largest PE-backed listing ever. And pension capital is arriving through reforms the industry asked for — bringing an audience that will judge it on evidence it doesn't yet produce. The funds that put measurement architecture in place during this window raise their next fund with proof. The rest defend marks.
The era Bain describes is a race for capital, talent and deals. But it is won hold by hold, quarter by quarter — and in this market the quarter is a trust event. None of this requires new strategy. The intent is already named, in every IC memo the industry has filed. What's missing is the operating layer that turns those commitments into a visible, measured trust signal.
The question
For every operating partner, deal partner and investor-relations lead in private capital:
Can you show an investment committee, an LP and a regulator the same trust evidence — by stakeholder, by asset, on demand — without commissioning a new report?
If the answer is yes, you hold the instrument this new era keeps asking for: one sentence, backed up with data. If the answer is not yet, that's not a gap — it's the single highest-leverage system you can build in 2026.
— Dustin Lawrence, Founder, MissionCTRL