CMO was founded in 2008 as Construction Materials Online by four individuals with a traditional merchants background who spotted an opportunity to disrupt what remains a predominantly offline sector by launching a dedicated online roofing merchant. Roofing Superstore made its first commercial sale in 2009.

Drainage Superstore was the second organic addition to the Group, making its first commercial sale in 2014 followed by a third organic addition, Insulation Superstore in 2015. In 2015 the Group also acquired DV8 Media which had provided outsourced IT, ecommerce and marketing functions to the Group since it was founded, bringing these key functions in-house for the first time.

In 2017, KCP backed a management buyout of CMO, allowing the Founders to step away from the day-to-day operations of the Company. CMO subsequently acquired Doorweb in June 2018, integrating it into CMO’s online platform as in October 2018.

After a decade of growth, the Group rebranded as in 2018.

In August 2019, CMO launched Tile & Floor Superstore and CMO Trade. CMO Trade was developed to bring together all the products provided by different specialist websites operated by CMO to improve the shopping experience for trade accounts and increase cross-selling across categories.

CMO further expanded through the acquisition of Total Tiles in December 2020 which generated revenue of £14.7 million in its financial year to 30 November 2020.

In the summer of 2021, CMO Group PLC successfully joined the London Stock Exchange Alternative Investment Market.

CMO’s next acquisition, JTM Plumbing Limited, followed in September 2021 extending the company’s already extensive product offering.

In 2022, CMO added to the Group portfolio, which along with JTM Plumbing Limited, drives further expansion into c£1.6bn online Plumbing, Heating and Bathroom categories.

Plumbing launched in the summer of 2022.