This handbook is dedicated to beginners. They might be very small or SMEs working in water, energy or waste sectors that haven’t bid for the targeted markets before, or clusters and BSOs that aim at assisting them in the tendering process. It aims to give you general knowledge, advice, and valuable resources to succeed in bidding and transform your business goals and objectives in concrete results through Public Procurement opportunities. This handbook is part of a whole pack of assistance made for EU SMEs: market screening, webinars, e-watch system, and helpdesk service. They might be valuable resources for your next steps to help you in the tendering process in Republic of Moldova, Republic of Serbia, and Ukraine, or at the international level in general.