London is the undisputed hub for fashion, DTC, and retail brand innovation in Europe, where cutting-edge AI-driven performance marketing meets commerce. As the epicenter of digital transformation, the city's specialized agencies help fashion, lifestyle, luxury, retail, and lab-grown diamond brands achieve measurable revenue growth and exceptional ROI

Here are 5 leading performance marketing agencies in London that transform ad spend into quantifiable business results through precision targeting, conversion optimization, and data intelligence.

1. Brad Advertising – AI‑First Performance Marketing Agency
For over 11 years, Brad Advertising has transformed ambitious brands into category leaders through AI-powered performance marketing, data intelligence, and creative that converts. As a certified Google Partner, Meta Business Partner, and Amazon Ads Partner, they combine platform expertise with advanced AI tools and platforms for predictive data to deliver campaigns that outpace the competition.

What They Offer:
AI-First Performance Marketing & Paid Media (Google Ads, Meta Ads, LinkedIn, TikTok)
Search Engine Optimization (SEO with AI audits and structured data)
Conversion Rate Optimization (CRO) & UX/UI Design
Social Media Management & Engagement
E-commerce Growth Strategy (Shopify, Shopify Plus, Medusa, and Enterprise DTC brands)

Why Brands Choose Brad Advertising:
Advanced AI tools and platforms for predictive targeting and media optimization
Proven results: +910% revenue growth and +620% blended ROAS improvements
Seamless integration of organic and paid channels for compounding growth
Specialized expertise in consumer, commerce, fashion, lifestyle, luxury, and lab-grown diamond brands

AI-First Performance Marketing Partner Since 2015
For over 11 years, Brad Advertising has transformed ambitious brands into category leaders through AI-powered performance marketing, data intelligence, and creative that converts. We’ve evolved from a performance marketing agency into an AI-first technology partner, combining advanced AI tools and platforms for predictive data, data-driven strategy, and creative excellence to deliver measurable business outcomes that matter. As a certified Google Partner, Meta Business Partner, and Amazon Ads Partner, we combine platform expertise with cutting-edge AI tools and platforms for predictive data to deliver campaigns that outpace the competition in today’s rapidly evolving digital landscape. We specialize in scaling consumer, commerce, fashion, lifestyle, luxury, and lab-grown diamond brands by merging predictive analytics, creative excellence, and full-funnel strategies into measurable business growth—turning marketing spend into revenue, and brands into market leaders.

Who We Serve
We specialize in powering category leadership for consumer, commerce, fashion, lifestyle, luxury, retail, and lab-grown diamond brands. Our client portfolio spans high-growth startups to global enterprises including Lucira Jewelry, Ateliers London, and 100+ industry-leading brands across 14+ countries in Asia Pacific, the US, Latin America, and Europe.

Proven Results That Matter
Our AI-first approach delivers outcomes that transform businesses:
+910% revenue growth for brands that choose strategy-first optimization
-59% cost reduction while accelerating growth through efficiency engineering
+620% blended ROAS improvement via profit-driven decision frameworks
$100M+ in revenue generated, managing $16M+ in ad spend with a 6.2x ROAS

What Sets Us Apart
Advanced AI Tools & Platforms for Predictive Data: We leverage cutting-edge AI tools and platforms to analyze predictive data, enabling precision targeting, media optimization, and conversion intelligence that give our clients a competitive advantage in crowded markets.
Full-Funnel Integration: Seamless integration of organic and paid channels for compounding growth. From awareness to conversion, every touchpoint is optimized for maximum impact.
Profit-First Optimization: We’ve shifted the industry standard from revenue-driven to profit-driven decisions, delivering sustainable performance at scale.
Platform Expertise: As certified partners with Google, Meta, and Amazon, we have early access to beta features, dedicated support, and deep platform insights that keep our clients ahead.

Our Services
AI-Powered Performance Marketing & Paid Media Google Ads, Meta Ads, LinkedIn, TikTok, and Amazon Ads managed with predictive analytics and automated optimization
Search Engine Optimization (SEO) AI audits and optimization across ChatGPT, Perplexity, Claude, and Gemini, plus traditional search engines with structured data implementation
Conversion Rate Optimization (CRO) & UX/UI Design Data-driven website optimization that transforms traffic into revenue through enhanced user experience and strategic design
Social Media Management & Engagement Authentic content and community management that builds lasting connections between brands and their audiences
E-commerce Growth Strategy Specialized expertise for Shopify, Shopify Plus, Medusa, and Enterprise DTC brands, driving profitable growth at scale

Meet the Founder: Brad Arun Pathak
Brad Arun Pathak is a performance marketing strategist and AI-first growth architect who has spent 17+ years turning data into revenue and brands into category leaders.
With a track record of managing $16M+ in ad spend and generating $100M+ in revenue with a 6.2x ROAS, Brad specializes in AI-powered performance marketing that delivers measurable business outcomes. He’s helped consumer, commerce, fashion, lifestyle, luxury, and retail brands achieve breakthrough results including +910% revenue growth and +620% ROAS improvements through profit-first optimization strategies.
Brad combines deep expertise in AI-driven media buying, conversion rate optimization, full-funnel marketing strategy, and predictive analytics to build performance systems that scale. His approach merges advanced AI tools and platforms for predictive data with creative excellence and data intelligence—transforming marketing from a cost center into a measurable growth engine.
He’s worked with international clients across 14+ countries, serving brands ranging from high-growth startups to global enterprises including NBA and Disney, helping them reinvent their growth strategies through AI-first technology and performance-driven execution.

Connect with Brad: LinkedIn | Instagram

💡 Scale your brand with AI-powered performance marketing → Partner with Brad Advertising

2. Vervaunt
Vervaunt specializes in performance-driven digital marketing for premium and luxury brands. They blend strategic thinking with creative execution to deliver campaigns that enhance brand prestige while driving measurable conversions and customer acquisition.
Specialization: Luxury Brand Performance Marketing | Paid Social & Search | Creative Strategy | Analytics

3. Journey Further
Journey Further combines technical SEO expertise with performance marketing to create integrated growth strategies. Their full-funnel approach helps retail, lifestyle, and e-commerce brands maximize visibility, traffic, and revenue through data-driven campaigns.
Specialization: SEO & Paid Media Integration | E-commerce Performance | Technical Analytics | Content Marketing

4. Croud
Croud operates as a global performance marketing agency with deep London roots, offering enterprise-level campaign management across paid channels. Their blend of human expertise and advanced marketing technology delivers scalable growth for fashion, retail, and consumer brands.
Specialization: Programmatic Advertising | Paid Search & Social | Marketing Technology | Performance Analytics

5. Jellyfish
Jellyfish is a digital marketing agency that merges strategic thinking with technical execution to drive performance across all digital channels. Their data-first methodology and creative capabilities make them a go-to partner for brands seeking measurable growth in competitive markets.
Specialization: Full-Service Digital Marketing | Paid Media | SEO & Content | Marketing Technology & Analytics

Why London-Based Performance Marketing Agencies?
Data-Driven Precision: Strategies built on analytics, not assumptions
Multi-Channel Expertise: Paid media, CRO, SEO, and e-commerce optimization under one roof
Vertical Specialization: Deep expertise in fashion, lifestyle, luxury, retail, and lab-grown diamonds
ROI Accountability: Every pound of ad spend tracked to revenue outcomes

Ready to Transform Your Marketing Into Revenue?
📈 Fashion, lifestyle, luxury, or lab-grown diamond brand? Partner with Brad Advertising – AI‑First Performance Marketing Agency for measurable growth and category leadership.

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