Certified Professional Coach

wabya

Co-Founder

Founders Law

Senior Marketing Manager

Amazon

Senior Brand Manager (EU)

myPeak Vegan

Director

Consumer Insights Manager

Digital and Media Manager (United Kingdom and Ireland)

Brand Manager (GTR)

Brand Manager

Brand Executive - Southern African Markets (Botswana, Lesotho, Namibia, Swaziland and Zimbabwe)

Grosvenor Branding Solutions

Head of Sales

01M-OneMoment

National Marketing and Sales Manager

Sports Performance Academy - Penzance

Founder

Umlilo Brands

Account Manager

I don’t just enjoy strategy - I deconstruct it. I’ve always been drawn to how people think, how decisions are made, and the unseen forces that drive behaviour. I’ve built brands with no budget, with limited resources, and at global scale. Whether it’s been hustling to grow a startup with organic, high-leverage tactics or managing multi-million-pound marketing budgets at Amazon and BAT, I’ve learned that strategy always beats spend when done right.

I’m an INFJ, known for being visionary, strategic, and deeply intuitive - the same as Nelson Mandela, which probably explains why I value insight, integrity, and meaningful impact over surface-level success.

I’ve worked with CMOs, founders, billionaires, artists, investors, and creatives. I’ve shaped global brand strategies, negotiated high-impact partnerships, and launched campaigns that drive real-world impact.

Beyond my work, I’ve been in the top 1% of all Spotify listeners worldwide, consuming over 5,800 artists in 2024 alone. Music is more than just a passion - it’s a way I experience the world, much like branding and consumer psychology.

I don’t just want to build - I want to build things that matter.

Craig Leslie

Leftfield

We’re a customer-led consultancy that delivers being thought of, by more customers, in more buying situations.

We’re on a mission to bring the business of media experience to the boardroom. We work with clients to elevate the marketing profile within their businesses from a cost centre to demonstrating it as an engine for growth, directly feeding enterprise-level decision-making and the sales function.

Our Core-Partnership principle ensures that we together with our trusted network of specialist partners provide a flexible process together with only the best dedicated tools and solutions to service current and emerging client needs as the B2B category continues to experience transformational growth.

When you engage with Leftfield, you:

► Have a Partner That Understands The Need For Both Brand Development & Conversion

► Comprehensively Weave Data, Intelligence & Disruptive Technology with Big, Bold Ideas

► What, When & How To Communicate & Resonate With Your Ideal Customer Profiles (ICP)

► Maximise Your Budget To Create More Inbound & Outbound Leads Within Your ICP

► Gain The Ability To Leverage Content Relative To Your Prospecting & Retention Objectives 

► Give Your Sales Team Confidence & Competence to Sell Successfully


We positively relish the unique challenges that B2B & B2B2C marketing presents. We’ve earned a reputation for devising solutions that go beyond the obvious, often delivering far more than the client’s original objectives.

Leftfield consists of a team of Experts in the following areas:

► Strategy & Planning

► Media Planning & Buying

► Content Marketing Strategy

► Digital Media & Marketing Specialism

► All-Asset-Optimisation: SEO, ASO

► Paid Search – all Search Engines

► Social Media – Linkedin, Instagram, Facebook

► Demand Generation and Analytics

Founder & Director

London South Bank University

Advisory Board Member - Business School

Threepipe Reply

Head of Strategy & Planning

Head Of Digital

Business Lead for Skills and Professional Practice at the Brandmovers Creative & Digital Economy Institute

Visiting Fellow

Guest Lecturer

Havas Media Group UK

Publishing Director

Account Director

Blowfish Digital

Senior Account Manager

ESV Digital

Cobra Group of Companies

Sales Director

Young & Rubicam

Art Director

With more than two decades of agency-side experience, I have developed a deep expertise in strategy, planning, buying and implementing integrated marketing campaigns and solutions for clients across multiple sectors and different size companies, from start-ups to multinationals. I have a proven track record of delivering results, driving growth, and building brands for my clients, using data, insights, and creativity to achieve their objectives and exceed their expectations.

I founded Leftfield, a customer-led marketing agency for B2B businesses with global reach, to bring the business of media experience to the boardroom. I believe that the B2B sector deserves a better type of agency that can elevate the marketing profile within their businesses from a cost centre to an engine for growth. My mission is to help B2B businesses be thought of, by more customers, in more buying situations, by leveraging our unique core-partnership approach that brings together the best dedicated tools and solutions from our trusted network of specialist partners. We are home to amazing people who are passionate about creating incredible work on interesting brands, and we are 100% independent and answer to no one but our clients.

Marco Felicio

taplio

The Battle

Craig Leslie

Marco Felicio

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