Kirsten Koch joined Cornerstone's Concord team in October 2024, serving as Vice President to assist with executing strategic client initiatives and helping them cultivate strong relationships throughout the state.

Kirsten came to the firm following her time at the Business & Industry Association of New Hampshire (BIA) most recently serving as Vice President of Public Policy. In this role, Kirsten advised the public policy team, driving proactive advocacy efforts and overseeing the policy development process among BIA members. She regularly testified before the state legislature representing the business community on a variety of energy and environmental issues. Kirsten successfully advocated changes to make New Hampshire a more competitive state for doing business, including spearheading key policy initiatives to streamline permitting processes and drive the development of local energy sources. She also directed BIA's largest coalition of businesses while producing educational conferences for the organization.

Before her time at BIA, Kirsten worked as a Legislative Aide for the New Hampshire State Senate, gaining an in-depth understanding of the legislative process and building strong relationships with legislators and state agencies. She served as the aide to the Health and Human Services Committee and the Transportation Committee. Additionally, Kirsten served as Strategic Initiatives Director for the New Hampshire Republican State Committee, leading grassroots initiatives and managing statewide coalitions for federal, state and local elections.

Kirsten is proud to be a lifelong Granite Stater. She holds a bachelor's degree in political science with a law minor from Plymouth State University, where she graduated Summa Cum Laude.

6-10 years

Matt Latham is a Partner at the 1907 Group, a strategic government affairs and lobbying firm based in Oklahoma City. Originally from Kingfisher, he studied political science at the University of Oklahoma and has built a career helping businesses and organizations navigate the intersection of policy, politics, and strategy across the state.

Matt is known for his relationship-driven approach, focusing on trust, collaboration, and practical solutions that achieve results for clients. Matt recognizes that authentic relationships - both with clients and stakeholders - are the foundation of effective advocacy.

Matt splits his time between Oklahoma City and Medicine Park, where he is deeply involved in local civic life and community projects in both communities. Outside of work, he is an avid sports fan following the University of Oklahoma, Oklahoma City Thunder, Swansea City and just about any sport he comes across. He and his better half, Cassi, enjoy travel and spending time outdoors with their dogs.

H. Boyd Pettit, III is Partner and General Counsel for GeorgiaLink Public Affairs Group, LLC Pettit, a practicing Attorney since 1979, served as a Democratic member to the Georgia General Assembly for five consecutive terms beginning in January, 1983. Elected to the House of Representatives, succeeding newly elected Governor Joe Frank Harris, he was named a member of the House Appropriations, Judiciary, and Industry Committees. Pettit became Secretary to the Judiciary Committee and Chairman of the Public Services and Utilities Subcommittee of House Industry. During his membership in the House, Pettit served as Georgia's representative to the Southern States Energy Board and was selected as a participant in the Leadership Georgia Class of 1987. In 1993, he joined GeorgiaLink Public Affairs Group while remaining active on behalf of local governments, local education entities, public bond finance issues, and local industrial recruitment and development. In September 2000, Pettit was selected to the Georgia State Board of Transportation. He was re-elected in January, 2001 to a full five-year term. Pettit currently serves on the State Board of the Georgia Youth Science and Technology Centers and is an active member of Sam Jones Memorial United Methodist Church in Cartersville. Previously serving on Board of Directors of the North Metro Technical Institute Foundation, Pettit was a part of the effort to secure property, utilities, and funding for the state adult technical school. Boyd has two daughters, Dana and Bray. They reside in Cartersville, Georgia.

James H. "Jay" Roberts is the most recent member of our team. Prior to joining GeorgiaLink, Mr. Roberts served in the Georgia State House of Representatives (2003-2015) while in the House, Jay was elected as both Vice-Chairman and Chairman of the House Majority Caucus by his peers. Former Gov. Sonny Perdue asked him to serve as his Administration Floor Leader in his second term. He served in that capacity for 2 years. Jay was named the Chairman of the House Transportation Committee by the Speaker of the House in 2010. He served as Chairman of the House Transportation Committee for 6 years. During his tenure in the House, Jay served on the Agriculture & Consumer Affairs, Ethics, Economic Development & Tourism, Ways & Means, Appropriations, Rules, Game & Fish and Transportation Committees. Jay has served several communities during his 13 years in the House. He served Irwin, Ben Hill, Tift, Turner, Coffee, Telfair, Wheeler, Wilcox and Jeff Davis counties. Governor Nathan Deal appointed Jay to the distinguish position of Director of Planning for the State of Georgia at the Georgia Department of Transportation. He was tasked with the planning of the State's Transportation projects including developing and implementing the STIP. Governor Kemp asked Jay to serve on his Transition Team. He was then asked by Governor Brian Kemp to continue to serve him as the Director of Planning. In September, 2019 Mr. Roberts joined GeorgiaLink Public Affairs Group. He and his wife Sarah have two children, and they reside in Irwin County.

John S. "Trip" Martin, III is the founder of GeorgiaLink Public Affairs Group. GeorgiaLink is a governmental affairs consulting firm which has been recognized by James magazine seventeen years in a row as the top lobbying firm in the state of Georgia. Mr. Martin began his Government Affairs career in 1981 as the Director of State Government Affairs in Georgia for Southern Bell. In 1986, he was promoted to the position of Director of Legislative Affairs for BellSouth in Washington, D.C. where his major responsibilities included the development and implementation of strategies for dealing with Congress on national telecommunications policy issues. He has served as the Vice President of the U.S. Chamber of Commerce Southeastern Public Affairs Council and was a participant in the Leadership Georgia Class of 1983. He is the former Vice President of the University of Georgia National Alumni Association. Mr. Martin currently serves on the Board of Directors of The Advocacy Group, an international network of lobbying firms with offices in forty-eight states. Trip is married to Julie Brown, a native of Atlanta and President & CEO of Georgia Foreign-Trade Zone. Trip and Julie split their time between residences in Atlanta and Blue Ridge, Georgia, where he is a licensed realtor with the Blue Ridge office of Premier Mountain & Lake Property, Inc., and owns and operates Big Creek Alpaca Farms. Trip has three grown children and five granddaughters.

6-10 years

Former Oklahoma State Representative 2014-2020

PhD in Sociology University of Oklahoma

8 yrs as political commentator on a weekly Sunday morning show in Oklahoma, Your Vote Counts, News9 KWTV

Arthur B. "Skin" Edge, IV is engaged in Governmental Relations and Consulting. Prior to joining GeorgiaLink, Mr. Edge served in the Georgia State Senate (1986-1996) and was Minority Leader of the Senate from 1992-1996. Mr. Edge served on the Appropriations, Special Judiciary (Chairman), Public Utilities and Health committees in the Senate. He also served on the Legislative Fiscal Affairs Committee and the Code Revisions Committee. Georgia Trend Magazine named Edge as one of "The 100 Most Influential People in Georgia." He was voted "The Top Registered Lobbyist in Georgia in 2018" in a poll of legislators, state officials and lobbyists. He was also named by Business to Business Magazine as one of "The Ten Most Influential People under the Gold Dome." He is a graduate of the University of Georgia (BBA 1977) and the University of Georgia School of Law (J.D. 1980). He was a participant in the Leadership Georgia Class of 1988. Skin and his wife, Bambi, have three children and six grandchildren. They reside in Newnan, Georgia.

20+ years

0-5 years

Jamie Benda is an Associate Lobbyist with the 1907 Group, where she advocates on behalf of clients before the Oklahoma Legislature and state agencies. Since joining the firm in 2023, she has supported strategic policy initiatives and continued building relationships across state government. Prior to joining the 1907 Group, Jamie served as a professional staffer for the Majority Floor Leader of the Oklahoma House of Representatives, working closely with top legislative leaders and gaining firsthand experience in the policymaking process. Jamie brings a relationship-driven approach to advocacy - combining her experience inside the Capitol with a commitment to delivering results for clients.

Outside of her professional work, Jamie is an active volunteer with the Junior League of Oklahoma City, where she contributes to community initiatives that strengthen and support women and families. She also loves to travel and explore diverse cultures around the world. At home, she enjoys spending time with her three rescue dogs and her husband, who owns and operates two Oklahoma-based businesses.

Marc Goldberg joined Cornerstone in July 2023, expanding the firm's public affairs presence to New Hampshire and bringing 17 years of media and strategic communications experience to the Public Affairs team.

Previously, Marc served as chief of staff for the office of Sen. Maggie Hassan (D-NH) since 2016. In this role, he managed a team of nearly 50 staffers across the Senator's D.C. office, five state offices and subcommittee office through the Homeland Security and Governmental Affairs Committee. Before that, he also served as Sen. Hassan's campaign manager as well as her communications director when she was New Hampshire's governor. Other communications roles include press secretary for former Maryland Lt. Gov. Anthony Brown and communications director for former Rep. Suzanne Kosmas (D-FL).

Marc has also served as the independent expenditure director for the Democratic Senatorial Campaign Committee. In this role he focused on running paid-media efforts across the committee's targeted states and building teams of TV, digital and polling consultants for each state.

Marc holds a bachelor's degree in political science with a concentration of American politics and a minor in psychology from the University of Pennsylvania.