MGH is one of the largest integrated marketing firms in the mid-Atlantic, providing a full range of services in-house, including advertising, public relations, creative, media planning and buying, interactive design and development, mobile marketing and app development, social media marketing, market research, strategic planning and more. Based in Baltimore, MGH is well-known as an advertising agency that works with clients in industries including food and beverage, retail, franchise, sports, packaged goods, education, healthcare, government, financial services, tourism and more.