Insights

Strong Market Presence Sumer operates in the UK accounting industry with a significant employee base of over 1000 staff, serving a diverse range of small to medium-sized businesses across various sectors. This broad footprint indicates substantial potential for offering complementary business services or technology solutions aimed at scaling their capabilities.

Growth Potential With reported revenues between 250 million and 500 million dollars, Sumer demonstrates solid financial health and a capacity to invest in innovative services or technology upgrades. Engagement opportunities could include financial enhancement tools or bespoke tech integrations to further boost revenue streams.

Tech-Driven Approach Utilizing a modern technology stack including MySQL, PHP, HTTP/3, and cloud services like OneDrive suggests Sumer values digital transformation. Opportunities exist to introduce advanced data analytics, automation, or cybersecurity solutions to support their technology infrastructure.

Community Focus Sumer champions local small to medium-sized businesses across the UK and Ireland, presenting a strong alignment for innovative solutions aimed at supporting community-focused ventures, such as local business management platforms or tailored financial products.

Collaborative Network By uniting regional practices and emphasizing ‘The Power of Collaboration,’ Sumer may be receptive to partnership models that enhance their service offerings, including joint ventures, integrated software services, or shared resource platforms that extend their market reach.

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?

Minus sign iconPlus sign icon
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?

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

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

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

What is Sumer's NAICS code?

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

How many employees does Sumer have currently?

Minus sign iconPlus sign icon
As of March 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?

Minus sign iconPlus sign icon
Sumer operates in the Accounting industry.

What technology does Sumer use?

Minus sign iconPlus sign icon
Sumer's tech stack includes jsDelivrMySQLOneDriveOWL CarouselPriority HintsPHPreCAPTCHAHTTP/3.

What is Sumer's email format?

Minus sign iconPlus sign icon
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

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.