2026 Bronze Winner
“Test and Learn” Partnership: Data, Insights and Targeted Card-Linked Offers to Deliver Incremental Revenue and Orders for Just Eat
The Challenge
In the fiercely competitive food delivery market, Just Eat needed profitable, incremental growth and a way to definitively prove the value of their media spend. Just Eat and Cardlytics reset and resumed their partnership in early 2025, building out a pilot and plan based on a customer-centric "Test and Learn" roadmap.
The Strategy
By aligning Just Eat's definitions of "new," "lapsed," and "active" customers with Cardlytics' bank-level transaction data, the partnership established a shared language for campaign targeting. The focus shifted from "black box" attribution to transparent, statistically robust incrementality testing based on agreed objectives.
Execution and Innovation
The partnership was built around four core objectives: increasing spend among existing lower-value Just Eat customers, driving incremental acquisition of new and lapsed customers, maintaining a profitable Cost Per Order (CPO), and boosting order frequency. Together, the two teams synchronised data to drive measurable, profitable and incremental behavioural change.
Results
Significant share of wallet shifts from key competitors, 45% of new customers returning to drive substantial repeat spend.
Judge's Verdict
"The benchmark for true, non-transactional partnerships — acting as a market intelligence unit utilising precise bank-level insights.”
"Exceptional ROAS and a significant win in shifting market share and share of wallet away from competitors in a highly competitive sector."
Thanks to our 2026 sponsors
Adtraction is a leading partner marketing platform that helps brands across Europe increase their sales at a predictable cost, while enabling partners to monetise their content and traffic. The company works with brands across multiple industries, ranging from e-commerce to financial services. With a user-friendly platform, Adtraction connects brands with a diverse range of marketing partners, from influencers and media houses to apps, tech platforms and comparison sites. The company was established in 2007 and is headquartered in Stockholm, Sweden, with offices in 12 countries across Europe.
Agenica builds AI marketing employees for brands and media agencies. Unlike generic LLMs, Agenica employees operates on live competitive activity—ads, creative and channel signals, plus a company’s internal KPIs and decision frameworks. It converts that into role-specific recommendations and ready to use briefs: what changed, why it matters, and what to do next.
Atolls helps millions of consumers make smart spending decisions online. These consumers engage with our shopping destinations, including Hotukdeals and over 40 other deal communities, cashback platforms, and coupon sites, throughout their purchase journeys. We enable advertisers to engage with high-intent audiences when and where it matters the most.
Blue Light Card is the UK’s number one discount service for emergency services, NHS, social care workers and armed forces.
With more than three million members across the UK, Blue Light Card works with over 16,500 partners including the likes of Spotify, Toby Carvery, Hotels.com, Cineworld, Sky, EE and Halfords, providing savings, discounts and benefits that often aren’t available to the general public. In 2022 alone, Blue Light Card holders saved over £250 million on everything from holidays and days out to groceries and utilities.
Membership to Blue Light Card for access to all online deals and discounts is quick and easy by registering online at www.bluelightcard.co.uk. A card costs £4.99 and is valid for two years.
There for those that are there for all of us.
Partnerize is the only partnership management solution powering growth for marketers seeking high-quality, scalable subsidies to primary channels through end-to-end software & comprehensive service. Partnerize joined forces with Pepperjam and Brandverity to establish the leading global solutions provider for affiliate marketing and partner automation including brand monitoring and compliance. Partnerize serves 1,800 enterprise and mid-market clients worldwide, driving more than $10B in transactions via their relationships with an ecosystem of 750,000+ partners, including 250,000+ influencers. Partnerize services clients across industries including retail/e-commerce, D2C, travel, finance, telecom, subscriptions and gaming.
The #1 CSS partner for peak performance.
Redbrain is a UK-based CSS partner dedicated to helping online retailers unlock incremental sales by getting their products in front of high-intent shoppers. Founded in 2016 and now recognised as Europe’s #1 Comparison Shopping Service (CSS) partner by volume, we combine advanced AI-driven technology with hands-on expertise to drive billions in additional sales on a CPA basis. We work as an extension of our partners teams, enhancing product visibility across Google Shopping, Microsoft Ads and leading price comparison sites. At Redbrain, we’re focused on transparent, measurable growth that complements existing marketing strategies and maximises ROAS.