Factor4 is an energy service company (ESCO) specialized in the realization of energy efficiency, improved comfort and renewable energy in buildings. Our services include energy performance contracting, energy audits, cost-benefit analysis and engineering of energy saving measures. Our customers are hospitals, large offices and residential buildings, industrial and logistic sites. We provide energy efficiency solutions from start to finish, covering all relevant energy saving techniques and we deliver a performance guarantee. The results of our actions are measured and verified through this platform.