Insights

Strong Market Position Sumer operates in the competitive accounting industry with a robust revenue range of 250 to 500 million USD and a sizable team of up to 5,000 employees, indicating a well-established presence across the UK and Ireland that offers numerous opportunities for tailored financial and operational support services.

Focus on SMEs With a dedicated mission to champion small and medium-sized businesses across diverse sectors such as retail, technology, and charities, Sumer presents a strategic avenue for service providers to offer specialized solutions targeting the unique needs of growing enterprises.

Technology Integration Leveraging a modern tech stack including PHP, MySQL, and HTTP/3, Sumer emphasizes digital sophistication, suggesting potential for expanding into high-tech financial services or consulting on IT-driven efficiency improvements for their client base.

Growth Potential As a collaborative firm with a focus on scaling through regional expertise combined with national resources, there are significant opportunities for partnerships or service expansion aimed at supporting their growth and enhancing their service delivery frameworks.

Industry Networking Given the similarity to companies with large employee bases and extensive revenue, such as Epsilon and Alpha, engaging with Sumer could facilitate access to a broad network of financial and accounting firms seeking innovative tools, compliance solutions, and operational efficiencies in a competitive landscape.

Sumer Tech Stack

Sumer uses 8 technology products and services including jsDelivr, MySQL, OneDrive, and more. Explore Sumer's tech stack below.

  • jsDelivr
    Content Delivery Network
  • MySQL
    Database
  • OneDrive
    File Sharing
  • OWL Carousel
    Javascript Libraries
  • Priority Hints
    Performance
  • PHP
    Programming Languages
  • reCAPTCHA
    Security
  • HTTP/3
    Web & Portal Technology

Media & News

Sumer's Email Address Formats

Sumer uses at least 1 format(s):
Sumer Email FormatsExamplePercentage
First.Last@sumer.co.ukJohn.Doe@sumer.co.uk
50%
First.Last@sumer.co.ukJohn.Doe@sumer.co.uk
50%

Frequently Asked Questions

Where is Sumer's headquarters located?

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Sumer's main headquarters is located at London, England United Kingdom. The company has employees across 5 continents, including EuropeAsiaAfrica.

What is Sumer's stock symbol?

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Sumer is a publicly traded company; the company's stock symbol is CMS-PB.

What is Sumer's official website and social media links?

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Sumer's official website is sumer.co.uk and has social profiles on LinkedIn.

What is Sumer's NAICS code?

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Sumer's NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Sumer have currently?

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As of February 2026, Sumer has approximately 2K employees across 5 continents, including EuropeAsiaAfrica. Key team members include Chief Client Officer: J. T.Chief Risk And Compliance Officer: J. M.Chief Financial Officer: N. T.. Explore Sumer's employee directory with LeadIQ.

What industry does Sumer belong to?

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Sumer operates in the Accounting industry.

What technology does Sumer use?

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Sumer's tech stack includes jsDelivrMySQLOneDriveOWL CarouselPriority HintsPHPreCAPTCHAHTTP/3.

What is Sumer's email format?

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Sumer's email format typically follows the pattern of First.Last@sumer.co.uk. Find more Sumer email formats with LeadIQ.

Sumer

AccountingEngland, United Kingdom1001-5000 Employees

We’re Sumer, your business champion

We’re a collaboration of the best in business services. We bring together the indispensable value of leading regional practices with the tech, scale and breadth of expertise that only a national organisation can muster. We call this ‘The Power of Collaboration’ – an approach that delivers growth for our entire organisation and all the businesses we serve.

Whether its to free up time so that businesses can focus on the things that matter, help grow the business, or work through the trickiest of problems, we are here to help you succeed.

But what does that mean?

First and foremost, it means we champion small to medium-sized businesses across the UK and Ireland.

From farmers to tech firms, retailers to charities - they are the businesses at the heart of our economy and communities. To us, they’re heroes.

To give them the support they deserve, we believe we need to do more than the established players that have gone before us.

We’re bringing together the best in business services. Uniting like-minded firms who share our vision.

Section iconCompany Overview

Headquarters
London, England United Kingdom
Stock Symbol
CMS-PB
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Employees
1001-5000

Section iconMedia & News

Section iconFunding & Financials

  • $250M$500M

    Sumer's revenue is estimated to be in the range of $250M$500M

Section iconFunding & Financials

  • $250M$500M

    Sumer's revenue is estimated to be in the range of $250M$500M

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