Taggstar, by Syndigo

London, UK · ≈38 employees · taggstar.com

Taggstar, a software development company based in London, England, specializes in AI-powered conversion rate optimization for digital commerce. Acquired by Syndigo in March 2026, Taggstar enhances dynamic product experience management strategies. The company focuses on real-time, data-driven messaging that acts as a virtual shopping assistant, helping retailers boost online sales and reduce cart abandonment. The primary offering is the Conversion Messaging platform, which provides three key types of messaging: social proof, attribute messaging, and dynamic badging. These customizable messages are deployed across websites, mobile apps, and external channels like email and social media. By leveraging over a decade of big data and artificial intelligence, Taggstar enables retailers to guide shoppers effectively, turning hesitation into conversions and delivering statistically proven ROI shortly after launch. The company serves a diverse range of retailers and brands, including well-known names like Argos, Macy's, and Marks & Spencer.