The New Lenders Next Door: Private Credit and the UK Mid-Market Funding Gap

Ask a UK mid-market finance director where growth capital came from in 2026 and the answer is increasingly unlikely to be a high-street bank. It may be a private credit fund: a pool of institutional capital that lends directly to companies, often without a syndicated loan or a public bond.

Private credit is not new. What is new is its scale and its ordinariness. Banks remain open for business, but they are selective. Regulatory capital, tighter risk appetite and the need to protect balance sheets have made them careful with smaller, leveraged or fast-growing companies. Private credit has filled the gap.

Why the funding gap exists

The UK mid-market is broad, but the funding gap is easiest to see in companies that are too large for a standard SME loan and too small for a syndicated bond issue. These firms may have stable revenues, a credible management team and a clear plan, but they do not fit a bank's standard credit box. A refinancing, an acquisition or a dividend recapitalisation can be difficult to fund through traditional channels.

Private credit lenders can move quickly. They typically provide a single loan—often a unitranche—that combines senior and subordinated debt into one facility. That can be simpler than negotiating with a syndicate of banks. It can also be more expensive.

What borrowers are being offered—and what they are signing

The headline price is usually a margin over SONIA. But the all-in cost includes arrangement fees, original issue discount and, in some cases, payment-in-kind interest, where the lender receives more debt rather than cash. A loan priced at SONIA plus 550 basis points is not cheap if it also carries a 2% arrangement fee, an OID and a PIK toggle. Borrowers should compare the total cost of capital, not just the margin.

Covenants matter just as much. Maintenance covenants require the borrower to meet financial tests, often based on EBITDA or interest cover. Covenant-lite structures have fewer of these tests, which can give management more room—but they can also delay difficult conversations until problems are more serious. Borrowers should ask what happens if EBITDA falls, what equity cure rights exist and how much headroom they have before a covenant is breached.

Due diligence is not a formality. Lenders will examine quality of earnings, customer concentration, working capital, management depth and the durability of margins. Borrowers should apply the same scrutiny to the lender: how does it behave when a company misses plan, who holds decision rights, and will the loan be syndicated or sold? Private credit is relationship lending, but it is not charity.

The investor's side of the trade

For investors, private credit offers a yield premium in exchange for illiquidity, complexity and credit risk. The premium can be attractive. It can also be a warning. The asset class covers a wide range of strategies, from conservative senior lending to aggressive distressed debt. The label alone tells you little.

Valuation is a central issue. Many private loans do not trade daily, so valuations may be based on models, comparable transactions or manager judgement rather than observable prices. That can smooth reported returns and flatter volatility. Investors should ask how loans are marked, how often valuations are reviewed and whether an independent valuer is involved.

Liquidity is another. Open-ended vehicles holding illiquid loans can face a mismatch if investors redeem faster than the underlying assets can be sold. Closed-ended structures avoid that problem but can trade at discounts to net asset value. Neither structure is inherently wrong; the risk is holding the wrong one for your time horizon.

Concentration, default and recovery matter too. A portfolio of 20 loans is not the same as a portfolio of 200. PIK income can support reported cash flow while deferring a real problem. Leverage at the fund level can amplify losses. Due diligence on the manager—origination, underwriting, workout experience and alignment of interests—is as important as the yield on offer.

What public-market investors should take away

The rise of private credit is not just a private-markets story. It changes the competitive landscape for UK banks, asset managers, insurers and listed credit vehicles.

For bank investors, private credit takes share in areas where banks have become more cautious. That can support bank margins in the segments they retain, but it also means credit risk is migrating outside the banking system. For listed asset managers, private credit is a growth area—and a source of fee income that is less sensitive to daily market moves. For insurers, it can offer long-dated assets that match liabilities, provided the credit risk is priced correctly.

For public credit investors, private credit is competition. It can compress spreads in syndicated loans and high-yield bonds, and it can change the terms available to borrowers. The Bank of England and other regulators have repeatedly flagged risks around leverage, valuation and liquidity in private markets. Those warnings are not a prediction of crisis. They are a reminder that credit risk does not disappear when it moves off a bank balance sheet.

Questions to ask before signing or investing

Borrowers should ask: What is the all-in cost, including fees and PIK? How much covenant headroom is there? Who controls amendments and waivers? What are the prepayment and portability terms? How will the lender behave if the business underperforms?

Investors should ask: What loans are in the portfolio? How are they valued? What are the liquidity terms? How much leverage is used? What is the manager's track record through a downturn? What fees are charged, and how are they aligned with returns?

Public-market investors should ask: Where does private credit exposure sit in my portfolio—directly, through listed funds, or indirectly through banks and insurers? Am I being paid for the illiquidity and complexity, or simply for the label?

The bottom line

Private credit is rewriting how UK mid-market companies fund themselves. For borrowers, it offers speed and certainty at a price. For investors, it offers income and diversification, but not without valuation, liquidity and credit risk. The shift is structural, and it is not going away. The sensible response is neither to dismiss it nor to treat it as a free lunch. It is to price the risk properly.

This is analysis, not investment advice.