I am the founder of the Online Marketing and Lean Startup consultancy 22tribes.com based in London.
We help businesses find new ways to acquire (Marketing) and keep new customers (Retention), get existing ones engage more (Activation) and recommend your service to others (Referral/Recommendation/Word of Mouth/Net promoter Score).
Apart from 12 years of Marketing experience my USP is in Lean Startup coaching helping businesses develop new products or services in a Lean way (faster, cheaper, less risk) by testing and validating business assumption as taught from NYT bestseller Lean Startup and Customer Development authors Eric Ries, Brant Cooper, Steven Blank and other experts.