LION+MASON
London, United Kingdom
About
London and Leeds UX and product design consultancy delivering senior-led research and redesign for enterprise B2B and consumer platforms.
Who They Work With
Enterprise B2B and consumer brands modernising complex platforms or conversion-critical customer journeys.
Based on 8 documented clients · verified Jul 2026
Our Take
Eight published case studies walk through a recognisable consulting process—UX audit, benchmarking, journey mapping, user interviews, prototyping and user testing—for enterprise clients including Best Western, Johnson & Johnson, Barnett Waddingham, L3Harris, Harley-Davidson, Cambridge University Press and Allianz.
Results are uneven: the Best Western redesign cites +32% year-on-year online revenue and a +20% conversion lift over a 14-week build, and Barnett Waddingham carries a partner-attributed ~90% new-business win rate, but the L3Harris, Harley-Davidson and Allianz studies describe the work in detail without business metrics, and no case study shows a date. The Johnson & Johnson pharmacist platform, by contrast, reports 7-figure revenue per territory, +36% average order size and 30,000 training courses completed.
Work spans hospitality, insurance, pharma, automotive/retail, aviation/defence and publishing with no single declared vertical, and the advertised AI Experience Design rests on one example (the Allianz AI insight portal).
The weaker fit is a buyer needing a named vertical specialist or dated, fully-referenced case studies—ask for the metrics and timeline behind each headline claim.
Key strengths
- Process is shown end to end across multiple studies—stakeholder workshops, UX audits, journey mapping, atomic-design systems and remote user testing on low-fidelity prototypes appear in the Best Western and Barnett Waddingham cases.
- Three engagements report hard outcomes—Best Western (+32% revenue, +20% conversion), Johnson & Johnson (7-figure revenue per territory, +36% AOV) and Barnett Waddingham (~90% win rate)—giving concrete benchmarks for scope and pace.
- Verifiable legitimacy: a registered UK entity (LM UXUI Ltd), Clutch "Top" recognitions for 2024, and attributed client testimonials from named blue-chip brands.
Good to know
- No case study carries a date and no team page lists named consultants or headcount—ask for recent (last 12-18 months) examples and confirm who would staff your project.
- Outcomes are inconsistent: request the measurement method behind the headline figures, and ask what changed for the cases (L3Harris, Harley-Davidson, Allianz) that show no metrics.
- AI Experience Design is marketed but evidenced by a single Allianz portal—if AI is central to your brief, ask for additional shipped examples before committing.
Reviewed by Gabor Kiss
Founder of UX Agencies · UX Lead at SAP · May 30, 2026
Based on the agency's publicly available portfolio. Own this agency? Claim your profile to provide additional context or request a review update.
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