Engineered cementitious composites (ECCs), renowned for their ductility and tensile strain capacity, are good solutions for enhancing the lifespan and robustness of crucial structures. Past studies have shown that ECCs can decrease 40–50% of their carbon footprints by lowering 30–40% material usage, increasing service life, and utilizing supplementary cementitious materials like fly ash, etc. This reduction is not solely confined to research; rather, there exists commercial evidence verifying such reductions in carbon footprints and overall costs. The development related to the sustainability of ECCs is not complete without the applications of these composites. The onsite applications of ECCs have different important purposes. Firstly, they allow the participation of improved material properties, particularly ECCs’ high tensile strain capacity, to increase the structural performance. Additionally, their applications approve the unique characteristics of ECCs that traditional concrete cannot achieve. This chapter presents the commercial applications of ECCs in building, transportation, and water structures, highlighting their adaptability in achieving different performance objectives. Structural safety, longer lifespan, and improved construction efficiency are a few application goals discussed in this chapter, presenting ECCs’ role in advancing sustainable infrastructure practices.