David Sloly: Speaker | Author | Co-founder of Marketing Agency HarveyDavid

My marketing agency HarveyDavid optimises sales and marketing performance at every stage of the funnel to increase the number of prospects making it all the way to becoming a deal.

I am a Non-Exec Director at Tech Innovation company Strange Thoughts and an Honorary Member of the Royal Institute of Navigation.


HarveyDavid is a pragmatic and commercially minded marketing agency that applies its unique Funnel Vision methodology to optimise clients’ sales and marketing performance.


My passion for marketing and business story creation has taken me all over the world to share my ideas. From New York to Nigeria including SXSW, TED, The Prince’s Trust, Microsoft and Google Campuses.


I have written several business books for start ups and to help organisations find and tell their business stories. My work has been included in the Independent’s ‘Top Ten Business Start Up Books’.


At HarveyDavid we believe the sales funnel, or sales pipeline as it’s sometimes called, is a cross-departmental bible.

It’s invaluable for identifying areas of the buying process that offer the most significant opportunity for improvement.

The HarveyDavid unique Funnel Vision methodology optimises sales and marketing performance to deliver more and better deals.


I have two talks available for businesses that are interested in teaching their colleagues new ideas at the same time as motivating them to take action.

Funnel Vision: How to optimise you sales and marketing performance.

Why You Need A Business Story And How To Create It: A practicle and easy to apply solution for creating engaging business stories.


Over the last ten years, I have been asked to write several business books for publishers, including Prentice Hall and Kogan Page, and self-publish for my own agency HarveyDavid.

Titles include:

Zoom! The Faster Way to Make Your Business Idea Happen (The Independent top ten business book of the year). Amazon

Mash-up!: How to Use Your Multiple Skills to Give You an Edge, Make Money and Be Happier. Blackwells

Why You Need A Business Story And How To Create It. Includes 5 simple steps for creating a business story. Amazon

The Eloqua Mindset: Conversations with Successful Marketers Who Are Realising the Potential of Marketing Automation. Amazon

The Little Book of Funnel Vision HarveyDavid