Hayslett Group LLC expanded its client roster with the addition of five new accounts.

McCarthy Building Companies Inc., MAP International and Southeast Georgia Health System selected Hayslett Group to provide public relations and media relations counsel. For law firm Chamberlain Hrdlicka and Emory University's Zyman Institute of Brand Science, Hayslett Group will produce marketing collateral materials.

McCarthy, based in St. Louis, is an employee-owned general contracting firm that is ranked among the top 20 U.S. builders. Founded in 1864, it is one of the oldest privately owned construction firms in America. Its areas of contracting expertise include commercial, civil, institutional, educational, healthcare and industrial.

Founded in 1954, MAP International, based in Brunswick, Ga., is one of Forbes magazine's "100 most prominent charities." MAP's mission is to provide essential medicines, prevent and eradicate disease and promote community health development around the world. Among others, the group is currently assisting victims of Sudan's civil war and the Asian tsunami.

Southeast Georgia Health System, also based in Brunswick, is a not-for-profit organization employing more than 1500 people. SGHS is comprised of two hospitals, three regional family care centers and one prompt-care walk-in center.

Law firm Chamberlain Hrdlicka is engaged in practice areas including corporate, finance and securities, tax controversy and planning, litigation, estate planning and administration, real estate, and energy. With offices in Houston and Atlanta, the firm has approximately 100 attorneys representing public and private companies, as well as individuals and family-owned businesses across the United States.

Zyman Institute of Brand Science, a partnership between Zyman Group and Emory University's Goizueta Business School, is designed to be the nation's elite center for brand research and studies. The Institute is committed to the pursuit of cutting-edge thinking in brand theory and practice with a focus on how brands drive financial value and developing and sustaining synergistic partnerships with corporate sponsors, research firms, other universities, scholars and thought leaders.