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Glenn Cookson

Glenn Cookson is founder and chief executive of Apostle, a CRM consultancy for ecommerce brands that Superco has invested in. He is a Klaviyo Community Champion and has spent more than a decade in marketing and client partnerships.

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About Glenn

Glenn set up Apostle in August 2025 with Mili Paligoric Garcia. The consultancy builds retention and lifecycle programmes for direct-to-consumer brands, with senior people on every account. In September 2026, a year after launch, Apostle announced that it had become a Klaviyo Platinum Partner.

Before Apostle he spent four and a half years at the ecommerce agency Underground Ecom as head of client and partnerships. He ran its agency and technology partnerships, including Klaviyo. He also ran The DTC Marketing Club, a community and events business for founders of direct-to-consumer brands.

His earlier career was in marketing operations and consulting in Preston and Leyland. He holds a law degree from the University of Lancashire and sits on the advisory board of The Beauty Intelligence Project.

Outside work he is a director of a community interest company that protects Preston's historic buildings. He led the Friends of Tram Bridge campaign, which saved the city's 200-year-old Tram Bridge.

Experience

RoleOrganisationYears
Founder and CEOApostle2025 to present
Klaviyo Community ChampionKlaviyo2026 to present
Advisory board memberThe Beauty Intelligence Project2026 to present
Fractional chief revenue officerShaded The Studio2025 to 2026
Head of Client and PartnershipsUnderground Ecom2021 to 2025
DirectorThe DTC Marketing Club2024 to 2025
Marketing consultantGC Marketing2016 to 2023
Head of Regional Marketing OperationsMy Planet2014 to 2016

Expertise

  • CRM and lifecycle strategy for direct-to-consumer brands
  • Klaviyo email and SMS
  • Retention and customer lifetime value
  • Agency and technology partnerships

Glenn and Superco

Superco has invested in Apostle, and the two teams work together on email and CRM for Shopify brands. Glenn has also hosted Elevating the Game, an event for ecommerce teams run by Apostle, Superco and Leaf. Read about the partnership, or meet his co-founder Mili Paligoric Garcia.

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Awards and recognition