The main topic of this research is the affect of a businesses marketing mix on customer loyalty. For a business a successful marketing mix creates customer interest in goods or services, builds strong customer relationships, and creates value for their customers and for themselves. This project will explore whether being a certified Benefit Corporation (B Corp) adds value to a business’s marketing mix, specifically researching the B Corp certification’s impact for a local coffee shop, addressing whether it creates value, satisfaction, or loyalty for the coffee shop’s customers. B Corps are less a legal entity (Archibald, 2007), such as a C Corporation or an S Corporation, but more so a certification of particular business practices and activities that are socially and environmentally beneficial. In a sense a B Corp certification is for sustainable businesses what LEED is for green buildings. According to the B Corp website, a B Corp certification enhances and adds value to a business by the business being recognized as a leader, and by differentiating the business’s commitments via a third party certification. But at the consumer level, just how powerful is a B Corp certification? Does having a B Corp certification enhance a business’s marketing mix by solidifying a commitment to social causes and in turn increase customer loyalty? If a business enhances a community and is committed to sustainable practices without a B Corp certification, will customer loyalty and brand value increase upon gaining a B Corp certification? This research study will examine Busboys and Poets, a local restaurant and coffee shop in Washington, DC that is a certified B Corp. Specifically the question driving this research is: Does the B Corp certification increase Busboys and Poets’ customer loyalty, and perception of brand value? An analysis of the data collected is unable to provide statistical significance for observed results regarding the aforementioned objective. Most likely the error in the data collection is a result of a too small sample size. Nevertheless, this research was able to bring to the attention of respondents information they were unaware of, such as Busboys and Poets’ B Corp certification and what it means, as well as thinking about business’ role in addressing climate change, and being accountable to all stakeholders. As a place for ideas, and conversations, inspiring interaction regarding these ideas was beneficial, and potentially increased customer awareness.