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Our approach > Case studies > M Group Services

Building one of the UK’s leading essential infrastructure services providers

Building one of the UK’s leading essential infrastructure services providers

2.0x+

Growth in order book

2.4x

EBITDA growth

14 years

Average customer relationship

M Group Services overview

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Key facts

Sector

Business Services

Headquarters

United Kingdom

Investment date

July 2018

Ownership

89.3%

Exit date

September 2024

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In July 2018, PAI Partners completed the acquisition of M Group Services, the UK’s largest provider of essential infrastructure services and solutions. The company provides services to, and partners with, major essential infrastructure providers in the water, energy, telecom and transport sectors.

PAI’s decision to acquire M Group Services was based on its market-leadership position in highly regulated end markets, defensive business model with high revenue visibility, consistent financial track record, and its position as a clear buy-and-build platform in a fragmented market.

Under PAI’s ownership, the business scaled significantly: total revenues increased from £1 billion in 2018 to over £2 billion in 2024, the order book doubled in size, and the company successfully delivered on a strategy to broaden its service offering and client base.

The success of this strategy has led to a more diversified and resilient business model, deeper client relationships, and strong platform from which the company can continue to grow. The sale of M Group Services to CVC completed in September 2024.

Investing in the real economy

A classic example of a PAI investment in the real economy, the acquisition of M Group Services capitalised on sector trends amplified by structural market shifts, including the need to maintain ageing UK infrastructure assets, decarbonisation, and the development of next-generation infrastructure.

PAI’s deep knowledge of a complex asset, track record in Business Services, early dialogue with management and strong network of industry advisers allowed the firm to build further conviction in the investment thesis and create a strong, trust-based relationship.

M Group Services’ transformation journey

During PAI ownership, M Group Services experienced significant growth across revenue, EBITDA and cash flow, with clear emphasis on enhancing the quality and scale of the order book.

The group successfully delivered on its organic growth plan, diversifying and strengthening historically smaller divisions, as exemplified by the growth of the Telecoms division. The group also accelerated its M&A strategy, acquiring and successfully integrating 14 complementary businesses in six years, focusing on more technical and higher-margin competencies to add real depth and breadth of capabilities.

With PAI’s support, the company refreshed and strengthened its management team, with the appointment of a new CEO and CFO, and establishment of a new COO role. These appointments were complemented by an optimised organisational structure and operating model following extensive investment to strengthen M Group Services’ platform, improve operational functions and processes, and enhance its IT infrastructure.

When the company was sold to its new owners, M Group Services had become the leading provider of essential infrastructure services and solutions for clients across the transport, energy, water and telecom sectors in the UK and Ireland.

Creating a global ESG leader

After initiating M Group Services’ ESG efforts and team, PAI supported the company in advancing its sustainability credentials, integrating ESG principles into the core of the business and positioning the company as a sustainability transition enabler for the future.

Today, M Group Services is essential to the UK in delivering Net Zero aspirations and is a global ESG leader with a top 1% Sustainalytics global ranking, which is widely considered to be best-in-class.

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© PAI 2026 | PAI Partners 2019 | PAI SAS: Registered in France No. 904 479 649, PAI SAS is a fund management company approved and regulated by the AMF in France (approval number GP-20240001). PAI Partners S.à r.l. : Registered in Luxembourg No. B136689. PAI Partners S.à r.l. is a fund management company approved and regulated by the CSSF in Luxembourg (approval number N. A00000625). PAI Partners (UK) Limited: Registered in the United Kingdom No 04015677. PAI Partners (UK) Limited is a financial advisory company approved and regulated by the FCA in the United Kingdom (approval number 984663). PAI and PAI Partners are registered trademarks.

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