With 2025 delivering one of the strongest-ever years for M&A, expectations for the year ahead were high.
After a wave of $10bn-plus transactions pushed total deal values above $1trn for both Q3 and Q4 of 2025, partners were confident that 2026 would get off to a strong start.
And so far, that momentum has held, with megadeals continuing to drive activity. Preliminary global data from LSEG shows total M&A value has once again surpassed $1trn in Q1, with geopolitical pressures – not least the conflict in the Middle East – doing little to dent confidence.
Although the quarter’s figures are not yet finalised, Q1 2026 has already outpaced the same period last year, with total value up nearly 8% from $953.5bn in Q1 2025 to $1.03trn.
Clifford Chance Americas corporate head Benjamin Sibbet (pictured) is bullish on the outlook for premium M&A: ‘It’s clear that the M&A market is fully reopened – at least at the top end.’
‘Conviction and confidence are definitely back – particularly for large strategic transactions in which boards are confident in their long-term vision and the strategic direction of the company, and they’re prepared to allocate capital accordingly.’
‘A lot of the deals that are being announced are not the product of a six-month process – they’re the product of years of strategic thinking to find a deal that works,’ he concludes.
While value is up, volume is down, as was the case for 2025, with the preliminary figures showing global deal count still below 10,000, a result that could make it the slowest quarter by deal volume in over a decade.
With just 9,772 deals recorded so far, Q1 could deliver the lowest number of deals since Q1 2014, the last time quarterly deal count was below 10,000.
For elite law firms, the data tells a similar story: lower volumes, but strong performances from firms focused on big-ticket mandates.
Top firms for global M&A: Q1 2026
| Firm | Rank (Q1 2025 rank) | Total deal value | Number of deals |
|---|---|---|---|
| Sullivan & Cromwell | 1 (1) | $177.7bn | 36 |
| Wachtell Lipton Rosen & Katz | 2 (21) | $149.6bn | 23 |
| Kirkland & Ellis | 3 (2) | $137.8bn | 149 |
| Gibson Dunn & Crutcher | 4 (13) | $129.1bn | 57 |
| Skadden | 5 (7) | $111.6bn | 49 |
| Fried Frank | 6 (23) | $93.9bn | 16 |
| Davis Polk | 7 (6) | $92bn | 27 |
| Clifford Chance | 8 (9) | $91.7bn | 28 |
| Latham & Watkins | 9 (4) | $89bn | 129 |
| Simpson Thacher & Bartlett | 10 (14) | $85.2bn | 46 |
Sullivan & Cromwell is top of the value rankings for Q1 2026, acting on 36 deals worth a combined $177.7bn, ahead of Wachtell Lipton Rosen & Katz, which acted on 23 deals worth a total of $149.6bn.
One firm that is delivering on both value and volume is Kirkland & Ellis, which ranks third with 149 deals worth a total of $137.8bn.
Kirkland corporate partner David Higgins says he has seen a continuation of many of the key trends from the end of 2025.
‘Private capital investors continue to focus on exit opportunities as they seek to return capital to limited partners ahead of fund raises,’ he says. ‘Exits are coming in all shapes and sizes from IPOs, full and partial sales to continuation vehicles.’
Fellow corporate partner Matthew Elliott cites data centres, digital infrastructure and defence as particularly active sectors, while also noting the cooling impact of AI on some valuations.
‘In terms of sectors, we have seen that there are some headwinds around certain types of software deals and businesses that are felt to be at risk from AI – but on the flipside, there has been strong demand for sports assets and AI-related targets,’ Elliott adds.
Skadden is another strong performer for Q1, with 49 deals worth a combined $111.6bn, enough to secure fifth place in the global rankings, and the firm is also the top-ranked US firm for Europe deal value, placing fifth behind Slaughter and May, Linklaters, Herbert Smith Freehills Kramer and Freshfields.
Global transactions head Lorenzo Corte (pictured) says the momentum of last year has carried into 2026 – particularly at the top end of the market.
‘Geopolitical uncertainty has inevitably introduced some caution, but it hasn’t fundamentally derailed activity. Instead, we’ve seen the market become more selective and strategic. Clients are willing to wait but also prepared to execute quickly when the right opportunity arises.’
‘The most notable feature of the current market is the continued divergence between value and volume. We’re seeing very high aggregate deal values, but fewer transactions overall – with activity concentrated on larger, more strategic deals.’
‘AI and AI-related infrastructure are among the dominant drivers of activity. That extends beyond technology into data centres, semiconductors and the energy and utilities assets required to support that buildout, which reflects a broader shift in how capital is being deployed across the digital economy.’
Top firms for UK M&A: Q1 2026
| Firm | Rank (Q1 2025 rank) | Total deal value | Number of deals |
|---|---|---|---|
| Slaughter and May | 1 (10) | $42.9bn | 5 |
| Herbert Smith Freehills Kramer | 2 (13) | $32.4bn | 8 |
| Linklaters | 3 (22) | $28.3bn | 12 |
| Freshfields | 4 (6) | $25.4bn | 9 |
| A&O Shearman | 5 (11) | $20.5bn | 15 |
Clifford Chance (CC) is the top-performing UK-headquartered firm in the global rankings, placing eighth with roles on 28 deals worth a total of $91.7bn, including a headline-making mandate for Nuveen on its £9.9bn acquisition of British asset manager Schroders.
On the trend for megadeals, Nigel Wellings (pictured), co-head of CC’s European corporate group, says: ‘Bigger players are trying to get bigger.’
‘Even large players in many markets are trying to acquire further scale to compete globally, for example transactions seen in the asset management sector. Much of the activity is consolidation involving the biggest players in a sector.’
However, he cautions: ‘It is still too early to determine how the Middle East conflict may influence investment appetite. Oil price volatility and inflation could slow the market if businesses once again face uncertainty over their energy costs for the next six months,’ he adds.
James Howe, co-head of European M&A at Simpson Thacher, says 2026 has got off a ‘roaring start’ despite geopolitical turbulence, with the team advising on 46 deals worth a total of $85.2bn.
‘Volumes have dipped due to a widening of pricing in the credit market, geopolitical instability and the impact of the evolving AI landscape – but deals are still happening across various sectors such as services, tech, financial services and healthcare,’ he adds.
‘Investors have conviction in different sectors and will continue to do so.’
The firm recently took a key role for Nordic Capital on its majority investment in fintech company TradingHub, and also advised AI startup Faculty on its $1bn acquisition by Accenture in January.
Geoffrey Bailhache (pictured), co-head of European M&A at Simpson Thacher says: ‘We’re navigating a period of uncertainty, which can feel challenging – yet investors remain exceptionally well‑positioned to adapt.’
‘As clarity begins to return, history shows that investors consistently regain their stride and move ahead with renewed confidence.’
Underlining the megadeal theme, Slaughter and May is the top ranked firm for both European and UK M&A, securing those top spots with roles on just eight and five deals respectively.
Those roles have included advising Vodafone Group on the sale of its 50% interest in Dutch joint venture VodafoneZiggo to JV partner Liberty Global, as well as acting for Schroders across from CC on the Nuveen acquisition.
Slaughters earned up to £23.5m in fees for its work on the Schroders deal, according to deal filings, and also received as much as £25m for its work for Zurich Insurance Group on its $11bn takeover of insurance rival Beazley, another of the biggest deals of the quarter.

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