Affinia and UHY Hacker Young Offices to Combine in £100m Strategic Merger

Why It Matters

The merger signals a pivotal shift in the UK accounting landscape, where mid‑tier firms must consolidate and secure external capital to compete with the Big Four on tech and ESG services. It highlights the growing influence of private‑equity in professional services, offering a blueprint for other regional boutiques seeking growth and resilience in a rapidly evolving market.

Affinia and UHY Hacker Young Offices to Combine in £100m Strategic Merger

Accountancy Age · February 4 2026

Affinia has announced a landmark combination with three key UHY Hacker Young offices in London, Nottingham, and Brighton. Backed by Sovereign Capital Partners, the deal creates a £100 m revenue powerhouse with 1,000 staff, signalling a major shift in the UK’s Top 25 landscape and the evolving role of private‑equity in the mid‑tier sector.

LONDON: In a move that further accelerates the rapid consolidation of the UK’s mid‑tier accounting landscape, Affinia has announced a landmark agreement to combine with three key offices of the UHY Hacker Young network: London, Nottingham, and Brighton.

The combination, subject to regulatory approval, will create a heavyweight firm with £100 m in revenue, a headcount of 1,000 people, and a footprint spanning 17 offices. This transaction represents the largest deal to date for Affinia, the Sovereign Capital Partners‑backed firm that has quickly established itself as the UK’s fastest‑growing Top 50 integrated player.

A New Powerhouse in the Top 25

The deal doesn’t just expand Affinia’s balance sheet; it reshapes the competitive hierarchy of the UK profession. By merging these entities, the new UHY Affinia will sit within the broader UHY Hacker Young UK network, effectively positioning the group as a Top 25 UK provider.

On a consolidated basis, the total UHY UK network—including the 10 member firms that will continue to operate independently—will now boast revenues exceeding £150 m. On the global stage, through its membership in UHY International, the firm gains a seat at a table with over $1 billion in collective revenue across 95 countries.

Strategic Rationale: Scale Meets “Purpose”

This isn’t merely a land grab for market share. The leadership teams at Affinia and UHY highlight a “purpose‑built” model designed to tackle the three primary pressures currently facing UK practitioners: regulatory complexity, technological disruption, and the war for talent.

• Darren Redmayne, Group CEO of Affinia, noted that the scale provided by this merger allows for the investment capacity and national reach required to meet increasingly complex client demands.

• For the regional offices in Nottingham and Brighton, the merger offers a solution to the “succession and scale” dilemma. Andrew Timms, Managing Partner in Nottingham, pointed to the office’s four decades of East Midlands history, suggesting that the partnership with Affinia provides the capital needed to drive regional growth without losing the consultative “client‑first” ethos.

Analysis: The Private‑Equity Effect

The involvement of Sovereign Capital Partners is a telling detail. We are seeing a distinct trend in the UK market where private equity (PE) isn’t just buying firms; they are building “platforms.”

Historically, the UHY network operated primarily as a collection of independent member firms. This hybrid model—where UHY Affinia acts as a consolidated entity while other member firms remain independent—offers a flexible future for the network. Subarna Banerjee, Managing Partner of UHY Hacker Young, noted that this creates a “unique proposition” for firms looking to join a larger brand, whether as an owned entity or an independent partner.

What This Means for the Mid‑Tier

For the wider profession, this merger is a bellwether. It suggests that the “traditional” network model is evolving. Mid‑tier firms are realizing that to compete with the Big Four and the Top 10 on tech implementation—such as AI‑driven audit tools and ESG reporting suites—they require the deep pockets that often come with integrated, PE‑backed structures.

The deal follows a pattern seen in recent years across the UK, where external capital is being used to bridge the gap between regional boutiques and national giants. David Guest, Managing Partner of UHY Hacker Young Brighton & Hove, perhaps summed up the mood of the market best:

“We believe this model will appeal to other firms navigating a rapidly changing marketplace.”