Welcome to Walnut Unlimited: The human understanding agency. Marketing Sciences Unlimited has evolved into Walnut Unlimited: The human understanding agency. At the heart of our proposition is a single concept – human understanding –underpinned with no-nonsense science to generate purposeful insights. We want to help you better connect with your customers and believe these human insights deliver brand growth. Created by bringing together all four of the Unlimited Group’s insight agencies: Marketing Sciences Unlimited, ICM Unlimited, ICM Direct and Walnut Unlimited we will deliver a new offer which is greater than the sum of its individual parts.