Sourcing Deal Flow in Private Markets: Why It Decides Returns

Over the past year, at private markets and wealth management conferences, the same theme has come up again and again in conversations with family office principals, private bank investment committees and independent advisers. They want to put more capital into direct investments. The reason is practical: a growing discomfort with concentration, correlation and the limits of scaled private market products.

Much is said about access to private markets. Far less is said about how to access good private investments, particularly direct exposure to sound private companies and lenders. That is the question of sourcing, and it now decides more of an investor's outcome than any other step.

This guide explains what deal sourcing is, why it has become the binding constraint in private credit, how family offices and wealth managers approach it from different starting points, and how to judge whether a manager's deal flow is worth backing.

What is deal sourcing?

Deal sourcing is the process of finding and selecting investment opportunities before any capital is committed. Deal flow is the stream of opportunities that process produces. In private markets, good sourcing goes well beyond reviewing inbound pitches. It rests on long-term relationships with founders, management teams, lenders, advisers and co-investors who bring opportunities directly.

Seeing more deals is the easy part. Good sourcing means understanding why an opportunity exists, what problem the capital is solving and whether the structure fits a defined mandate. Done well, it acts as the first filter, shaping portfolio quality long before underwriting, structuring or documentation begins.

Why sourcing is now the real constraint

For much of the last decade, the hardest job in private markets was raising money. For credible strategies, that is no longer true. The harder problem is finding assets that justify deployment without diluting underwriting standards or stretching mandates.

Market participants say the same. In survey data compiled by PitchBook and UBS, sourcing assets ranks as the biggest headwind facing private credit over the following six months, well ahead of fundraising conditions, inflation and geopolitics.

The wider data points the same way. According to McKinsey figures reported by ABF Journal, median spreads on new direct loans fell from a peak of 716 basis points in March 2023 to 544 basis points at the end of 2025, covenant-lite deals rose from 4% of direct lending transactions in 2023 to 21% in 2025, and the 25 largest managers took around 72% of 2025 fundraising. In private equity, BDO's 2026 survey of 400 US professionals describes too much dry powder chasing too few quality assets, with 82% expecting deal prices to rise.

When capital is plentiful and good assets are scarce, the price of a poor sourcing process is paid in weaker terms and thinner margins of safety.

Family offices and wealth managers: different starting points

Family offices have long sat at the centre of deal sourcing and co-investment networks. Their capital is often deployed alongside trusted peers, founders or operating partners, through relationships built over several cycles. Many still rely on those networks, but there is a growing tendency to add new partners and niche strategies, reaching parts of the market that sit outside crowded trades, whether by sector, geography or structure.

Wealth managers and private advisory firms start from a different place. Many were caught off guard by how quickly private markets became an expected part of client portfolios. Building that exposure takes more than product selection. It needs sourcing relationships, underwriting capability and the ability to match risk to client objectives, and most advisory platforms were not built for it.

As clients ask for differentiated private exposure, advisers are bridging that gap in real time. Some turn to large managers and standardised products. Others look for specialist partners who can source, assess and structure opportunities deal by deal. Either way, sourcing has moved to the centre of whether private market exposure adds value or adds risk.

Main deal sourcing channels compared

Investors reach private market deals through several routes, each with its own trade-offs.

Why large alternative managers are only half the solution

Large alternative managers filled a clear gap. They gave private banks and wealth managers a way to add private market exposure without building sourcing teams, underwriting capability or borrower relationships. For a time, access itself was the differentiator.

As private markets have been opened to the wealth channel, that position has shifted. For many clients, an evergreen fund or a scaled private credit vehicle now feels much like an ETF or a mutual fund. Access is available almost everywhere, and an adviser's role is harder to justify if the offer stops there.

The limitation sits in how these managers source. Capital must be deployed in size and on a predictable schedule. That narrows the universe of viable opportunities and rewards repeatable underwriting. In private credit, it often leads to exposure to similar borrower profiles and shared refinancing assumptions. As scale grows, borrowers become sensitive to the same macro conditions, particularly interest rate cycles, and when markets tighten, risks that looked separate surface together. We explore this in Scale Isn't a Strategy and in our piece on concentration risk in the mid-market.

Large managers provide access and consistency, and they remain an important part of most portfolios. On their own, they rarely provide differentiation.

When private markets start to behave like public ones

To absorb larger volumes of capital and a broader investor base, private credit has increasingly been delivered through standardised structures, some with added liquidity features. That makes distribution easier, but it changes how assets behave. Pricing becomes more sensitive to flows, sentiment and allocation decisions, in ways that were muted when investments were sourced directly.

When assets are packaged for scale, underwriting converges on what is repeatable rather than what is specific. Exposure becomes easier to distribute and harder to differentiate, and portfolios start to show the same pressures as public markets when liquidity tightens. The redemption queues seen in several large semi-liquid private credit funds in 2026, discussed in our guide to the illiquidity premium, are one example. We look at this tension in more depth in Has Private Credit Gone Public?

Investments sourced and structured directly tend to sit outside these dynamics. They are underwritten at the asset level, with terms shaped around the borrower rather than the vehicle. They take more work up front, and they are less exposed to short-term repricing and capital flows.

The other half: direct investments

What sets direct investing apart is the sourcing behind it. A direct investment is only as good as the network that originates it and the discipline applied before capital is committed. There is no portfolio effect to dilute weak underwriting or make up for poor entry terms. Each investment stands on its own.

For family offices this is familiar ground. What has changed is the focus on niche segments where competition from large pools of capital is limited, allowing families to stay close to the asset, understand how risk is created and managed, and avoid the convergence that comes with scale.

For wealth managers and private banks, the challenge is harder. Introducing direct investments needs access to deal flow, the ability to underwrite properly and the judgement to say when an opportunity fits a client mandate and when it does not. Without that infrastructure, direct exposure is difficult to deliver responsibly.

Used carefully alongside funds, direct investments bring back the features of private markets that scale tends to erode, anchoring portfolios to specific assets rather than broad market movements.

How to judge a manager's deal flow

Whether you invest through a fund, a co-investment or a specialist partner, the quality of the sourcing can be tested. Useful questions include:

• Where do the deals come from? The share that is originated directly, introduced by repeat partners or bought in from intermediaries.
• How selective is the process? How many opportunities are reviewed for each one funded, and why recent deals were declined.
• Who are the borrowers? Whether the pipeline reaches segments others cannot, or competes for the same names as everyone else.
• How are terms set? Whether the manager leads on structure, security and covenants, or accepts terms set by others.
• How are incentives aligned? Whether the manager holds what it originates, and how origination fees are treated. Our article on governance in private credit covers the conflicts to watch.

How we think about sourcing at Kingsbury & Partners

Family offices are a useful reference point because sourcing has always sat close to how they deploy capital. Increasingly they want to complement existing co-investment networks with partners who sit closer to origination in specific niches. In private credit, that often means smaller and growth-stage businesses and lenders, where scale is a disadvantage and underwriting still reflects the borrower's underlying economics.

Our position is shaped by how the firm is structured. Through our Allocate division, we sit in front of receivables-based private credit opportunities across the US, UK, Europe and the GCC, working with non-bank lenders and originators operating below the size thresholds of large platforms. These are typically assets where cash flows are identifiable and structure matters more than volume. Through our Raise division, we work with founders, SMEs, sponsors and emerging asset managers looking to structure credit strategies, often through our Luxembourg securitisation platform. That gives us a view of businesses seeking capital solutions rather than pooled funding, and of managers building strategies that do not fit standard fund formats.

The result is a broad view of how private credit demand and supply meet across regions and borrower types. For family offices, multi-family offices and wealth advisers, that visibility is most useful alongside their other sourcing relationships, helping them compare structures and decide where direct exposure adds value.

What this means for investors

Private markets have plenty of capital and too little capacity to absorb it well. As access has become easier, the constraint has moved earlier in the process, to how opportunities are sourced, assessed and matched to risk before any money moves.

Large managers will remain part of most allocations, providing access and operational consistency. Direct and specialist-sourced investments address a different problem: they bring back selectivity, demand clearer judgement and put discipline at the point of entry. Used together, they let portfolios reach parts of the market where risk is priced individually instead of averaged.

For family offices, this balance is already familiar. For wealth managers and advisers, it is becoming unavoidable, because clients have moved beyond access towards outcomes. The distinction that matters most as private markets grow is between exposure that is convenient and exposure that is deliberate, and sourcing is where that distinction is made.

Frequently Asked Questions

What is deal sourcing in private markets?

Deal sourcing is the process of finding, screening and selecting investment opportunities before capital is committed, usually through relationships with borrowers, founders, advisers and co-investors.

What is the difference between deal sourcing and deal flow?

Deal sourcing is the activity of finding and filtering opportunities; deal flow is the volume and quality of opportunities that activity produces.

What is proprietary deal flow?

Proprietary deal flow refers to opportunities a manager or investor sees directly, before or instead of a competitive process, typically through long-standing relationships. Such deals often allow better terms because fewer lenders are competing.

Why is deal sourcing harder in private credit today?

Large amounts of capital are chasing a limited supply of quality borrowers, which has compressed spreads and loosened terms in the most crowded segments, making disciplined selection harder.

How can family offices access private credit deal flow?

Through co-investment networks, direct relationships with borrowers and lenders, specialist sourcing partners and, for diversified exposure, pooled funds from established managers.

How should investors evaluate a manager's sourcing?

Ask where deals originate, how many are reviewed for each one funded, whether the manager sets the terms, whether it holds what it originates and how conflicts and fees are handled.