This document provides a literature review and background for a research study on cultural integration processes in mergers and acquisitions among Danish banks. The study aims to examine how bank executives employ cultural integration and how their actions contribute to integration. The literature review covers definitions of organizational culture and factors that influence culture integration, such as change management, acculturation, trust, relative size of merging organizations, and characteristics of bank mergers and acquisitions. The research will analyze 12 recent bank mergers in Denmark and provide recommendations to improve cultural integration based on the findings.