8th October 2025HW Fisher Acquires Media Marketing Compliance (MMC) to Expand Forensic Offering

HW Fisher, part of the Sumer Group, announces its acquisition of Media Marketing Compliance (MMC), an industry-leading firm enabling businesses to achieve financial transparency throughout their media and marketing supply chain.

The acquisition strengthens HW Fisher’s forensic and audit capabilities by integrating its established expertise in licensing and investigations with MMC’s specialist knowledge in auditing media and marketing agencies across the globe. Together, this creates a comprehensive service offering to help clients audit and protect significant marketing and advertising spend.

With more than 20 years’ experience across 110+ countries, MMC is a trusted partner to leading advertisers worldwide. The team provides specialist expertise to ensure transparency and accountability in marketing spend, independently auditing contracts, costs, and delivery to help businesses verify that budgets are used effectively and deliver real value.

With the global advertising industry valued at $1 trillion annually, the acquisition responds to increasing client demand for specialist media and marketing auditing capabilities, meeting the needs of the complex media and advertising landscape.

Stephen Broderick, Senior Director of MMC, says: “Joining HW Fisher and the Sumer Group represents an exciting opportunity to strengthen our position in the market and expand our capabilities. As part of a larger, established organisation, we can better support our clients drive for transparency in the advertising and marketing industry. The synergies between MMC’s expertise and HW Fisher’s broader audit and royalty auditing capabilities create compelling opportunities for both existing and new clients.”

Andrew Rich, Managing Partner at HW Fisher, says: “The acquisition of Media Marketing Compliance represents a natural extension of our service offering and demonstrates our commitment to meeting our clients’ evolving needs. Stephen and his team bring unparalleled expertise of the media and advertising landscape, complementing our existing forensic audit, contract compliance and royalty auditing capabilities perfectly.

Marketing is among the largest areas of corporate spend, often ranking just behind wages and raw materials as a company’s third biggest expense. This scale highlights the clear need for independent, specialist oversight. We are excited to support Stephen and the team in their continued growth and look forward to the new opportunities this will create for our clients.”

 

Notes to editors

About Media Marketing Compliance (MMC):

MMC conducts financial compliance audits for advertisers across the globe to deliver transparency in the media and marketing supply chain by verifying the amount they spend on media and advertising is correctly applied according to their contractual agreements. MMC’s compliance audits deliver a robust service leading to hard cash recoveries for its clients as well as added value through optimising contract terms and reporting requirements providing the client with increased protection, transparency, and savings in the future.


About HW Fisher:

HW Fisher is part of the Sumer Group, a top 15 accountancy practice. We provide expert accountancy, audit, tax, corporate and financial advisory services to high-profile entrepreneurial SMEs, not for profits, large corporates and high net-worth individuals. We also keep it personal by enabling entrepreneurial high net-worth individuals to concentrate on expressing their talent while depending on ours for their accountancy and financial planning.


About Sumer:

Sumer is the UK and Ireland’s leading mid-market accountancy practice delivering professional support to small and medium-sized enterprises (SMEs) across England, Scotland and Northern Ireland. It is a top 15 UK accountancy practice on a mission to champion SME businesses and offer local delivery supported by national expertise.

Since its inception, Sumer has grown rapidly through acquisition. It now employs over 2500 champions, with more than 50 offices, and generates an annual turnover of over £220 million, emerging as a key accountancy player.

Sumer’s strategy revolves around only acquiring leading regional practices that share the same ethos, values and approach. This in turn forms regional Hubs throughout the UK, focused on the SME market.

Sumer Group includes Carpenter Box, Cowgills, DPC Accountants, EQ Chartered Accountants, HW Fisher, Jerroms, Monahans, RMT Accountants & Business Advisors, R.T. Marke & Co Ltd, Scrutton Bland, Simmons Gainsford Group, Sumer Northern Ireland.

Sumer provides Hubs with access to a broader range of services for clients, technology and compliance support, funding for further acquisitions, and opportunities for Hub colleagues.

To find out more about Sumer, visit our website: sumer.co.uk

 

For any media enquiries, please contact Louise Hughes, lhughes@hwfisher.co.uk


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