Message from Bryant Barnes, President and CEO:

Hello from everyone at Comporium. We invite you to browse through these pages to see what we’re doing — investing in technology to improve your telecommunications service and investing to nourish the communities we call home.

Comporium, dating back to 1894, has deep roots in upstate South Carolina — roots that now have spread into the Midlands of our home state and into western North Carolina. When we say we’re a part of the community, we mean it. We live here, too.

People in our communities often say we’re unique – a local telecommunications company that relates to its customers on a personal basis, yet is often the first to roll out a new technological development while larger companies are still studying it.

We like to hear people say that, and we work hard every day to keep up with advances in technology around the globe so we can offer them to you.

From a small family with a single phone... to a large corporation with banks of data to protect… to an astronomical research center linked to satellites around the world, every customer is important to us. We ask what you need—not just today, but tomorrow—and we listen. Then we get to work making that happen, exceeding your expectations.

We take pride in our reputation as a caring company that’s also a technological leader, and we’re glad for the opportunity to share these highlights with you. Let us hear from you – by phone,, Facebook, Twitter or YouTube – with your ideas about how we can continue to make life easier for you.

Core Beliefs / Who We Are

Large enough to offer cutting edge technology, but small enough to offer superior customer service, Comporium strives to make each customer’s life easier. We are a telecommunications leader offering a diverse and technologically rich suite of business products. Comporium, an Enterprise that is over 120 years old and is one of the largest telecom providers in the nation, always strives to deliver the latest technology to our customers. We support businesses with innovative solutions that include voice, Internet, data, wireless, structured wiring and cabling, security, monitoring, automation, computer network service, and digital video. Our team is dedicated to meet the communications needs of each customer and to provide unsurpassed value.

Comporium, which is headquartered in Rock Hill, S.C., provides services in York, Lancaster, and Chester Counties in the Upstate; as well as, in parts of six counties in the Midlands: Lexington, Saluda, Edgefield, Orangeburg, Calhoun, and Aiken, and Transylvania County, N.C. Additionally, Comporium offers a comprehensive suite of business communications equipment and service options, in Charlotte, NC.



Comporium, known then Rock Hill Telephone Company, was founded in 1894 by John Anderson, John Cherry, and Andrew Smith. During the first year, the company installed 27 phone lines, most of them connecting the businesses and suppliers of the company’s founders. During the next two decades, Paul Workman and his aunt grew the company to 443 phones before ultimately selling the company to E.L. and Mary Sanders Barnes on Mar. 10, 1912. Four generations later, the descendents of E.L. and Mary are still running what has now become Comporium, as the company enters its 120th year of business. During the past century, we have acquired an interest in five other independent telephone companies, growing to serve Fort Mill, Lancaster, Heath Springs, Great Falls, Brevard (NC), and the Midlands of South Carolina.

Our Leaders

Bryant G. Barnes:
President & Chief Executive Officer
Bryant Barnes Chief Executive Officer

Bryant joined Comporium in 1979 and served in many different capacities throughout the enterprise before being elected as president in 2002. After a year as president, he was elected chief executive officer in 2003. Prior positions with Comporium include general manager and president of the data services business unit and vice president of information services for the enterprise.

Bryant has been a member of the Independent Telephone Pioneers since 1994. He has served on several committees for the United States Telecommunications Association and the Organization for the Preservation and Advancement of Small Telecommunications Companies. He also has served as director of the South Carolina Telephone Association and chaired its management information services committee.

He was the first chair of the York County Regional Chamber of Commerce, and he recently served as a director of Success by Six. Currently he serves on the Clemson University Foundation Board of Directors and the Winthrop University Advisory Group. He is a member of the Rock Hill Rotary Club.

Bryant is a graduate of Clemson University with a bachelor’s degree in electrical and computer engineering. He also earned a master’s degree in business administration from the University of South Carolina.

Jack Holladay:
Executive Vice President –
Technology and Facilities

Jack Holladay Executive Vice President –
Technology and Facilities

Jack joined Comporium in 1984 and is now responsible for installation and repair, information technology, facilities and construction, and engineering and planning, network services, Internet planning and development, and wireless planning and development.

Jack graduated from Presbyterian College with a bachelor’s degree in mathematics and a minor in computer science. He also has a master’s degree in business administration from Winthrop University.

He has been an active volunteer in the community and currently serves as treasurer on the Boys and Girls Club of York County’s board of directors.

John M. Barnes Jr.:
Executive Vice President -
Marketing & Business Solutions

John M. Barnes Jr. Executive Vice President -
Marketing & Business Solutions

John has been engaged in the communications industry for nearly 30 years, having begun his career in the communications industry with Centel Cable of Texas. He currently serves on the board of directors and as Executive Vice President - Marketing and Business Solutions for Comporium. John coordinates Comporium’s interests in companies providing fiber transport and business solutions, data storage and managed services, smart devices and connected home/car services, and digital signage and serves on a number of these entities’ board of directors. He also serves on the board of directors of Spirit Telecom, the largest fiber-based Competitive Local Exchange Company in the Carolinas, and Immedion, an enterprise-class dedicated data center provider.

John earned a degree in Business Administration from The Citadel Military College in Charleston, S.C. Among many outside interests, John is serving as a Director for the S.C. Governor's School for Science & Math and for STEM (Science, Technology, Engineering and Math) Premier. He is Past President of the Palmetto Partners for Science & Technology and currently serves as its Innovation Committee Chairman

Daniel Robertson:
Executive Vice President –
Chief Financial Officer, & Treasurer

Daniel Robertson Executive Vice President –
Chief Financial Officer, & Treasurer

Dan Robertson joined Comporium in 2006 from Springs Industries, Inc., where he was vice president – financial planning and analysis. Before joining Springs in 1977 and serving in a variety of senior financial roles, Dan was a senior accountant for Peat, Marwick, Mitchell & Co., Certified Public Accountants.

He holds a bachelor’s degree in business administration from Appalachian State University and a master’s in business administration from Winthrop University.

Robertson currently is a member of the North Carolina Association of Certified Public Accountants.

Matthew L. Dosch:
Executive Vice President –
Customer Operations & External Affairs

Matthew L. Dosch Executive Vice President –
Customer Operations & External Affairs

Matt’s responsibilities include the company’s residential services, business services, customer contact center and external affairs, for all of Comporium’s areas of operation, which incorporates York and Lancaster counties and the Midlands region of South Carolina and Transylvania County in North Carolina. Dosch formerly served as senior vice president of external affairs, which includes state and federal regulatory and legislative affairs, industry relations, provisioning of wholesale carrier services, carrier access billing, inter-company settlements, and company “cost” development and tariff administration.

Prior to joining Rock Hill in August 1994, Dosch spent four years as the manager of regulatory and legislative affairs for OPASTCO – the Organization for the Promotion and Advancement of Small Telecommunications Companies – where he represented the views of small and rural local exchange carriers before the Federal Communications Commission, Congress, and other Federal agencies. Before that, he worked for the Telecom Publishing Group of Capitol Publications, a business newsletter publisher.

Dosch graduated from Duke University with a double major in Public Policy Studies and English.


Telephone Museum

Museum Info:

117 Elk Ave | Rock Hill | South Carolina
Phone: 803.324.4030
Driving Directions

Museum Hours:

Monday, Wednesday, Friday & Saturday
10:00 AM – 2:00 PM

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