Key Concepts Marketing is a full-service marketing agency serving all of Central, East and South Texas. Based in La Vernia, Texas, we work with businesses of all sizes on traditional and digital marketing. The team at KCM offers services such as social media marketing, video production, search engine optimization, web design and development, pay-per-click marketing, email marketing, and more, with a focus on providing clear and concise reporting to clients while providing exceptional customer service.