Sumer - Your Business Champion

M&A Integration Manager

Sumer is a fast-growing professional services firm that is dedicated to championing SMEs and helping communities prosper, right across the UK and Ireland.

Operating within a buy and build “Hub and Spoke” business model, the M&A team sits at the centre of the organisation and plays a critical role in executing the overall strategy. This role will work closely with the Sumer senior management team, with a particular focus on successfully integrating acquisitions, as well as helping to identify and evaluate M&A opportunities and drive inorganic growth across the group. A fast-paced and diverse role working in a collaborative culture, it requires high-energy, well-developed project management skills and a strong track record and knowledge of M&A and integration. A unique opportunity to join an ambitious team at the very early stages of its journey.  

Key responsibilities:

  • Work as part of a small team, reporting directly to the Head of M&A, to play a critical role in the execution of the firm’s acquisition vision and strategy.
  • Assist in evaluating potential Targets, through assessment of both financial and non-financial KPIs, benchmarking and external market analysis to derive key commercial insights.
  • Support development of standardised and practical post-acquisition processes, providing guidance and oversight to existing Sumer firms who are in turn looking to acquire smaller firms in their region.
  • Drive an optimised M&A process, with particular responsibility for the post-acquisition phase, playing a vital role in the creation of an efficient and smooth journey from purchase to integration.
  • Coordinate and manage multiple external M&A advisory teams as part of the deal execution phase.
  • Help develop and monitor KPIs that measure performance of integrated acquisitions, and work with acquisitions to improve performance against those KPIs.
  • Maintain a strong external network and be inquisitive in order to inform deal flow and key trends.
  • Set the conditions for effective integration at spoke level; including working closely with the COO on broader integration initiatives.
  • Take the lead in conveying the investment thesis to key stakeholders through the preparation of investment papers – including interacting with the Executive, regional office senior management and external investors.
  • Champion innovation and technology adoption that would enhance the M&A process, improve Target selection/integration or improve efficiency across the group structure.
  • Play a key role in a new and exciting working environment that delivers on the firm’s values and supports diversity and inclusion.

If you are interested, please email for CV to

Sumer: Building a firm for you!

Application support – If you’re a person with a disability, if you’re neurodivergent, or if you have a condition that you believe may affect your performance during our selection process, we’ll be happy to make reasonable adjustments to our processes for you.

Sumer offers flexible working arrangements – please ask for more detail

Sumer Group Holdings Limited is a company registered in England and Wales under company number 14256975 with its registered office at The Beehive Building, Beehive Ring Road, Crawley, Gatwick, RH6 0PA. Sumer is the brand name under which firms which are members of and/or are connected to Sumer Group Holdings Limited operate and provide professional services. Each firm in the Sumer network is a separate legal entity. Sumer Group Holdings Limited does not provide audit, accountancy or other services to clients directly. The member firms can use the resources and/or services of other member firms. Sumer Group Holdings Limited is not an agent of any member firm and is not liable for any member firms. Each member firm is liable only for its own acts or omissions and not those of Sumer Group Holdings Limited and/or any other member firm.