What Is a Sustainability Report and Why Every Business Needs One?

Do small businesses really need sustainability reports, or are they just for corporate giants? In today's business landscape, transparency about environmental and social impact is becoming a basic expectation. In fact, roughly 90% of S&P 500 companies now release sustainability or ESG reports, a clear sign that reporting on sustainability is no longer a niche practice. Sustainability reporting has gone mainstream, and every business can benefit from it. This article explains what a sustainability report is and why your company needs one, using up-to-date insights as of 2025.