UK Venture Capital in 2026: Record Funding, a Narrower Market and the Rise of Private Liquidity
The UK venture market is showing signs of recovery, but the headline numbers only tell part of the story.
UK startups raised $17bn in the first half of 2026, more than double the amount raised in the same period last year and the strongest first half since 2022. Globally, August saw $42bn invested across more than 1,500 startups, up 122% year-on-year.
At first glance, that looks like a broad return of confidence to venture capital.
The reality is more concentrated.
For the latest episode of Nothing Ventured, our founder and CEO Aarish Shah looks at where the capital is actually going, the growing importance of AI, the rise of secondary liquidity and what founders should be thinking about as the funding environment continues to shift.
Record funding, concentrated capital
AI continues to dominate venture investment.
Of the $17bn raised by UK startups in H1 2026, $12.6bn went into AI companies, accounting for almost 75% of all venture capital deployed. More than half of the UK’s funding also came through rounds of $250m or more.
That concentration matters.
The market is increasingly separating companies that are demonstrating significant traction from those still trying to prove their growth story. While some businesses are raising exceptionally large rounds, others are finding it much harder to secure their next tranche of capital.
Cost AI, a Cambridge-based materials AI company, is one example of the scale available to companies that have found strong investor demand. The company raised a $450m Series B at a $2.6bn valuation, compared with $520m a year earlier.
The round was led by US investors Kleiner Perkins and NEA, highlighting another feature of the current market: much of the largest capital available to UK startups is coming from overseas.
Only 16% of large UK funding rounds in H1 involved domestic investors.
For founders, the implication is fairly practical. A strong funding market does not necessarily mean capital will be readily available for every company. Understanding where your business sits within that market, and how much runway you have if fundraising takes longer than expected, is becoming increasingly important.
Liquidity is becoming part of the funding conversation
Another significant shift is happening further down the company lifecycle.
Secondary transactions and employee tender offers are becoming increasingly common as private companies look for ways to provide liquidity without an IPO.
Carta administered 71 tender offers during H1 2026, with a combined transaction volume of around $3bn. Wave also completed an $85m employee tender through London’s new Private Securities Market, while Moneybox completed a £45m secondary share sale for employees at an approximately £800m valuation.
These transactions give shareholders and employees an opportunity to realise some value while allowing companies to remain private and continue growing.
That makes liquidity a relevant board-level conversation earlier in a company’s lifecycle.
For businesses approaching or beyond Series B, particularly those with investors and employees who have already been involved for several years, a secondary transaction can become part of the wider capital strategy.
There are plenty of considerations involved, from the cap table and pricing to tax implications and deciding who can participate. The CFO therefore has an important role in understanding how a tender or secondary could affect the company and its stakeholders.
The changing cost of capital
The funding environment is also being shaped by interest rates.
The Bank of England held the bank rate at 3.75% in September, while UK CPI inflation reached 3.1% in August. Higher rates have implications beyond traditional borrowing costs.
For venture-backed companies using venture debt or other forms of borrowing, financing costs can increase. Treasury strategies may need reviewing, while existing runway models may need to be tested against different interest-rate scenarios.
This is particularly relevant for companies approaching their next fundraise.
If a company assumes it can raise its next round within a particular timeframe, but the process takes several months longer, the additional cash burn can materially change the amount it needs to raise.
That is why runway should be treated as a live planning tool rather than a number that only gets updated when the board meeting comes around.
What should founders be thinking about?
The current market creates a strange combination of opportunity and pressure.
There is substantial capital available, particularly for companies operating in areas attracting strong investor demand. At the same time, capital is concentrated into fewer, larger rounds and the bar for growth-stage fundraising continues to evolve.
For founders, three areas deserve particular attention:
Know which funding environment you are operating in.
Look beyond headline venture numbers and assess how attractive your sector, stage, traction and growth profile are to investors today.
Stress-test your runway.
Model what happens if your next fundraise takes longer, costs increase or you need to raise more capital than originally planned.
Start thinking about liquidity earlier.
For companies beyond Series B, secondary transactions and employee liquidity may increasingly form part of the board’s capital strategy alongside traditional fundraising and a future IPO.
The UK venture market has clearly changed. There is more money flowing through the ecosystem, but it is moving towards particular sectors, companies and stages.
For founders, that makes financial planning increasingly important. Knowing how long your cash lasts, when you need to raise and what alternatives are available gives you more room to make decisions as the market moves.
As Aarish puts it, the practical takeaway is simple: stay liquid.
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