UK Services Firms Have Cracked Margin. Retention Is the Next Battle.
Summary
- UK professional services firms report the highest estimated mean PS profit margin of the five countries surveyed, at 24.08%, ahead of the 22.95% all-market average and 22.90% in the US.
- Estimated mean net revenue retention in the UK is 71.76%, a 7.5-point gap behind the 79.28% reported in the US.
- UK executive leadership holds defined net revenue retention goals or KPIs only 58% of the time, the second-lowest rate of any market in the study.
- UK deployment of AI agents in client-facing delivery sits at 52%, against 68% in the US, even though cross-functional workflow orchestration is the UK's top-rated use case for AI agents.
- The findings come from a UK-specific supplement to Certinia's 2026 Global Service Dynamics Report, based on responses from 300 UK professional services and IT leaders surveyed by Sapio Research.
The UK's best margins in this year's study are sitting on top of some of its weakest customer retention.
Every UK services leader walking into this year's numbers has a good story to tell. Margin is up. EBITDA is up. Next year's targets are more ambitious than in any of the other four markets surveyed. By every measure of how well UK firms deliver the work they've already sold, the UK is winning.
Ask about the customer retention on that work six months later, and the story changes.
Our new 2026 Global Service Dynamics Report: UK Supplement is built from what 300 UK professional services and IT leaders told Sapio Research this year. It traces exactly where that shift happens, and why the same operating model producing the UK's best margins in the study is also producing some of its weakest customer retention.
The Engine That Got Them Here
UK firms didn't get their margin lead by accident. Estimated mean PS profit margin in the UK sits at 24.08%, the highest of the five countries surveyed, ahead of the 22.95% all-market average and 22.90% in the US. Ambition for next year climbs even further, to an estimated mean 29.72%, with 29% of UK respondents targeting margins above 40%—the highest share in the study.
Profitability tops every other objective UK leaders named for the year ahead, cited by 67% of respondents–ahead of AI usage, operational efficiency and customer satisfaction. Where UK teams have felt the benefit of working across sales, delivery and finance, it shows up inside the business first, with productivity gains outpacing every other market in the study.
UK professional services firms lead the US and the global average on every margin measure tracked
Where Growth is Stalling
Then the story turns. Estimated mean net revenue retention (NRR) in the UK is 71.76%, a gap of 7.5 points behind the 79.28% reported in the US. That gap alone wouldn't be alarming, except for what's sitting behind it.
UK respondents are 14 points less likely than their US counterparts to say cross-functional working improved customer retention, and 12 points less likely to report stronger renewal rates. Only 58% of UK executive teams hold a defined NRR goal at all, against 71% in the US.
The efficiency case is closed. The growth case is wide open.
The same UK firms trail the US on nearly every customer outcome measured, including who in the organization is actually accountable for holding onto the number
Two Habits Behind the Split
Two things happening inside UK firms may help explain why: how they price the work, and what they're doing with AI.
Start with pricing. UK organizations have moved further from hourly billing than any market in the study, with time-and-materials pricing in use at just 43%, against 61% in the US. Fixed-fee contracts set the margin the moment the deal is signed, so management attention goes toward controlling delivery cost rather than growing what comes next.
AI tells a similar story. According to the survey, UK organizations are running the pilots, but they're just not finishing them. Deployment of AI agents in client-facing delivery sits at 52% in the UK, against 68% in the US, and 22% of UK organizations report piloting client-facing agents without ever putting them into production, against 15% in the US. UK leaders can already see where this costs them: cross-functional workflow orchestration is their highest-rated use case for AI agents of any market surveyed, named by just over half of respondents.
Who's Holding the Wheel?
Put the pricing model and the AI gap side by side, and one more piece keeps them both in place: nobody with the authority to change them owns the number. UK executive leadership holds a defined NRR goal only 58% of the time, the second-lowest rate of any market in the study. UK delivery teams hold that same goal 46% of the time, four points more often than their US counterparts.
Retention sits with the people closest to the work and furthest from the pricing, staffing and sales decisions that shape it. An account is hard to grow when the team accountable for growing it had no say in how it was sold.
Pro tips
For services leaders looking to close the gap between margin performance and account growth, a few places to start:
- Assign net revenue retention ownership above the delivery team. Put a named goal and KPI in front of executive leadership rather than leaving it with the team already responsible for delivering the work.
- Move AI agents from pilot to production before adding new ones. With 22% of UK organizations reporting client-facing AI agents piloted but never deployed, the fastest AI win is often finishing what's already started.
- Build forward visibility into fixed-fee contracts. With time-and-materials pricing the lowest of any market in the study, UK margins depend on accurate scoping and early warning on delivery drift, not delivery discipline alone.
- Track retention and renewal metrics with the same rigor applied to margin. The data most UK firms already collect will show the gap before it shows up in the pipeline.
Get the Full Picture and Suggested Next Steps
These three findings—the margin lead, the AI gap, and the ownership question—are just the surface. For the complete UK-specific survey results and analysis, including what’s driving the divide and where UK services leaders can close it fastest, read the full 2026 Global Service Dynamics Report UK supplement.
The margin is already yours. The data shows where the rest is waiting for you to claim it!