A comprehensive look at the role of environmentally responsible activities in increasing enterprise competitiveness (in terms of modern global economics) creates a basic concept: environmental efforts are increasingly becoming instrumental to making successful business decisions. The aspect of environmental responsibility covers actions to lessen the adverse effects within an environment, using resources wisely and applying sustainable technologies. In this article, we will take a closer look at the environmental windfalls that companies can achieve by following key initiatives which lead them to bolster their image and even attract more eco-friendly customers thereby enhancing their market worth. The research article have been analysed the successful business that apply environmental responsible (ER) as competitive advantage and how these practice can contributes to a longrun business stability. We analyze the effects of environmental practices on company financial performance, along with their capacity to respond better to market contingencies as well as attract and retain investments and partnerships. The study demonstrates that being environmentally responsible can be not only a reputation aspect but also an instrument for expanding the market, strengthening finance performance and relationship with customers and partners. The chapter highlights how business strategy mediates environmental management and claim that firms must align their corporate practices with the environment so as to achieve sustainability aims while remaining competitively attractive on markets.