Board of Directors
The Denver South Board of Directors is committed to building upon the organization’s legacy through visionary economic development leadership, civic involvement, and positive business advocacy in a non-partisan and collaborative manner to continuously improve the region’s economy and high-quality living standard.

Darryl M. Jones
Economic Development Chair
Darryl M. Jones is the Senior Vice President for Coventry Development Corporation. Coventry is the community developer for the mixed-use master planned communities of RidgeGate, Springwoods Village and Hobe Grove communities in Colorado, Texas and Florida respectively, focused on community appreciation through development of various asset classes.
Darryl has worked in both the public and private sectors in real estate development and planning and is a former mayoral appointee and part of the executive leadership team as the Chief Real Estate Officer at Denver International Airport (DEN). Prior to his service at DEN, Darryl was Vice President and Development Manager of Coventry Development Corporation, where he managed the day-to-day development activities of three major real estate assets. He has also served as the Director of Planning and Government affairs for Oakwood Homes, and in development regulation and vision implementation for several municipal jurisdictions on both the east and west coasts.
He previously served as an elected official and member of the Greenwood Village City Council and is a former member of the Denver Urban Renewal Authority (DURA) Board of Directors. He holds a Master of City Planning degree from the Massachusetts Institute of Technology and a Bachelor of Arts in Landscape Architecture from the University of California, Berkeley.

Mayor Marissa Harmon
Transportation Chair
Lone Tree Mayor Marissa Harmon is a wife, a mom, a daughter, a sister and a successful small business owner. Marissa has previously served on Lone Tree’s Planning Commission and has taken part in Citizen’s Academies with the Lone Tree Police Department and the Denver Regional Council of Governments.
Marissa works with many organizations, including South Suburban Parks and Recreation, the Douglas County Youth Initiative, the Partnership of Douglas County Governments, the Colorado Municipal League, and the Douglas County Homelessness Initiative.
Marissa and her husband Chris have been Lone Tree residents for over 10 years with their two daughters, loving all Denver South has to offer young families.
Jessica Campbell is serving her first term as Arapahoe County Commissioner representing District 2, which includes Centennial, Greenwood Village, a portion of Aurora and unincorporated central Arapahoe County.
Jessica’s goals are focused on supporting the community through complex times, striving to ensure public resources are used to positively affect our growing county. Whether tackling housing and mental health issues or growing our local economy, Jessica is invested in making Arapahoe County healthy, thriving, and sustainable.
Jessica represents the County’s interests on a variety of boards and committees, including:
• Arapahoe County Water and Wastewater Authority (ACWWA)
• Arapahoe County Board of Social Services
• Arapahoe County Executive Budget Committee
• Arapahoe County Housing Authority
• Colorado Counties, Inc.: General Government
• Colorado Counties, Inc.: Taxation and Finance
• Denver South Board of Directors and Transportation Management Association
• Forfeiture Board, Office of the 18th Judicial District Attorney
• Homeless Coordination Committee
• Metro Area County Commissioners
• Public Airport Authority
• Southeast Metro Stormwater Authority (SEMSWA)
Jessica earned her Master’s in Comparative Politics, her Juris Doctorate from the University of Denver, and is a licensed attorney with the Colorado Bar. After stints teaching English, practicing Election Law, and working at a local political consulting firm where she worked on international, local, and statewide campaigns, Jessica launched her own political consulting firm in 2017. In that capacity, she worked on city, state, and national campaigns and recently served as the Chief of Staff to Representative Iman Jodeh (HD41) for the 2021 and 2022 General Assembly sessions. In that role, Jessica focused on housing, health care, electoral, and immigration policy while managing staff and communications for Rep. Jodeh.
Peter Culshaw immigrated from London, UK in January of 1984. He worked as a Partner in the London-based company Gooch and Wagstaff before forming his own business, Winchester Properties in 1985. In 1989 Winchester Properties was sold and Peter joined DTC/Meridian where he served as President and CEO. He has been responsible for all of DTC’s operations, land development, vertical development, and the acquisition and disposition of numerous assets through the metro Denver area. In 2006, DTC/Meridian was merged with the J.F. Shea Company where Peter now serves as Executive Vice President for Shea Properties, overseeing Colorado and Arizona. Peter holds a Bachelor’s degree in Urban Land Administration from Portsmouth University in the UK, is a member of the Royal Institution of Chartered Surveyors and is a licensed real estate broker in the State of Colorado. Peter has had numerous philanthropic involvements. He was a founding member of the Cherry Creek Schools Foundation Board and a board member from 1995-2001, during which time he chaired the annual luncheon for two years. He was a board member of the MackIntosh Academy School from 1994-2000 and Chair of the Board from 1996 -1999. He joined The Children’s Hospital Research Institute in 1994, which he chaired from 1996-2006. He also served as a Children’s Hospital board member from 1997-2006 and is currently a board member of The Children’s Hospital Foundation where he has also served as Vice Chair and Chair. In 2006, he was awarded the Children’s Hospital “Miracles Award” for philanthropy. Peter and his wife, Cathy, have chaired the Kempe Center Annual Dinner as well as The Children’s Hospital Gala. Peter was awarded the Starlight Foundation’s Outstanding Philanthropist of the Year Award in 2001. He has been a board member of the Children’s Diabetes Foundation since 1996, and the Culshaws chaired the High Hopes Tribune Dinner on behalf of the Children’s Diabetes Foundation in 1997. Peter is on numerous civic and governmental boards including Chair of Denver South Economic Development Partnership, SPIMD Board, Goldsmith Metro Board, Meridian Metro Board, Greenwood District Board and former member of the Cherry Creek North District Design and District Boards. Peter is a member of the Urban Land Institute and International Council of Shopping Centers and has been a Colorado University Real Estate Council Member since 1997.
Michael Fronapfel is Chief Executive Officer of the Arapahoe County Public Airport Authority, owner and operator of Centennial Airport, one of the busiest corporate and general aviation airports in the US. Fronapfel, who holds a B.S. in Aviation Management from Metropolitan State University of Denver and began his career at Centennial Airport in 1998 as an operations intern. He then went on to become the airport’s very first noise officer and would play an integral role in establishing many of the public outreach programs within the airport’s noise office and programs.
Fronapfel, is a noted speaker on airport planning, development as well as being a pioneer in the use of drones for on-airport inspections. He developed Centennial Airport’s drone program; one of the first in the nation to be recognized by the Federal Aviation Administration.
Nick Garvin is Chief Executive Officer at Mobile TV Group (MTVG). Nick oversees all of MTVG’s operations, which include over half of all NBA, MLB, and NHL broadcasts across the country and more than 4,500 live events annually. Based in Denver, MTVG has offered high-quality broadcast engineering for nearly 30 years.
In June 2025, Nick launched the Mountain Media Center (MMC) in Centennial, CO – Nick’s vision for creating a complete media ecosystem that would advance live production standards. The state-of-the-art facility was designed not only as a production hub but as a comprehensive center offering education alongside a full suite of media services. Built with specialized infrastructure including redundant power systems, robust fiber connectivity, and flexible technical spaces, the MMC serves as the premier destination for live broadcast excellence in the United States. Nick plans to provide training and educational programs to cultivate the next generation of broadcast professionals.
This ecosystem approach builds on MTVG’s track record of innovation. In 2020, under Nick’s leadership, the company introduced Cloud Control, the first fully remote production managed service, allowing clients to go live from over 3,000 miles away from on-site events without making any production or staffing sacrifices.
Nick is a member of Forbes’ 2018 30 Under 30 class and continues to lead and inspire MTVG as it innovates the live production industry. Outside of MTVG, Nick Garvin founded Stackup, an educational technology startup using AI to deliver metrics on students’ digital reading and learning progress to thousands of schools across the United States. Stackup was named the Denver Post’s Tech Startup of the Year in 2016 and was acquired in 2021. In addition to being named to the 2018 Forbes 30 Under 30 list, Nick was also recognized in Denver Business Journal’s and L.A. TV Week’s 40 Under 40 classes in 2023. Nick holds a Bachelor of Science in Business Administration from the Eller College of Management, along with an executive education from the Wharton School of the University of Pennsylvania.
As the Senior Vice President of Operations for Shea Properties, Eric is engaged in everything from business operations and project piloting to strategic visioning and political outreach in pursuit of Shea Properties’ sustained success. An implementor of holistic consideration, his well-rounded understanding of market analysis, legal processes, finance, construction, and District oversight supports the synchronized synthesis of each project’s many disparate influences. An expert in water resources, rights, and supply, Eric is heavily involved in many of Shea Properties’ water issues and complex rezoning or entitlement efforts where his savvy enhances efficiency. A central presence connecting many perspectives, Eric helps Shea eliminates internal silos and serves as a vital bridge between the firm’s different divisions.
Eric completed two Masters’ degrees (Environmental Sciences and Public Affairs) from Indiana University following a degree in Biology from Lawrence University. He was a Fulbright Scholar in Zimbabwe.
Sam Inman is Wells Fargo’s Commercial Banking Leader for the Denver Tech Center and South Denver Metro Markets. He manages a team of Business Banking professionals who work with local businesses and business executives to support their business needs and goals. Inman has been with Wells Fargo for 19 years, all within the business banking team.
Sam began his career with Wells Fargo as a business banking associate, served as a credit analyst for three years, and as a Relationship Manager for three years before becoming the Business Banking Manager for the Denver Tech Center market. He has since had the opportunity to manage business banking teams across Colorado and in Southern Wyoming.
Throughout his career, Inman has been active in the community. Sam currently serves as Treasurer for the Boulder Community Hospital Foundation, and formerly was Chairman on the Jeffco Schools Foundation Board, a Boulder Economic Council Member, and SEBP Member. He has formally served on the South Metro Denver Chamber of Commerce Economic Development Group, SMDC Transportation Committee, SMDC Legislative Action Committee, Town of Castle Rock Investment Committee, and has volunteered for Junior Achievement. Outside of work, Sam is married with two daughters and enjoys spending time traveling, backpacking, road and mountain bicycling, cooking, and exercising.
Walt, Vice President of Commercial Real Estate, joined Koelbel and Company in 2016 as a third-generation real estate professional. He currently works on the development of Koelbel’s major commercial projects and is also spearheading Koelbel’s Investment Division and all value-add acquisitions, in Colorado and out of state.
Walt previously worked at CBRE as a financial analyst/consultant specializing in complex real estate planning and transaction assignments (domestically and internationally) and participated in strategy development for commercial real estate clients, conducting financial analyses and pro formas, plus one-off transactions.
A licensed Colorado Real Estate Broker, Walt is a graduate of the University of Kansas with a degree in business management.
George started his community service in Greenwood Village as a member of the Greenwood Village Board of Adjustment and Appeals where he served for 12 years as both Chairman and Vice-Chairman. For eight years he served on the Greenwood Village Planning and Zoning Commission including serving as Chairman for three years. He was elected to the City Council in 2015 and served as Mayor Pro-tem from 2017 – 2019. George was recently elected to the position as Mayor in November 2019. He has also participated as a board member of his homeowners association for 21 years and has served as the President for the last 18 years.
George served as President and CEO of an iodine exploration and production company, which traded on the London stock exchange. Prior to that he and his partners founded a telecommunications company, which they built to be a worldwide market share leader. The company was acquired by Polycom Inc. George also held positions in several large corporations including Texaco, IBM and ROLM.
George’s formal education includes a Bachelor of Science in Civil Engineering and a Master of Science in Business both from the University of Wyoming. George and his wife Debbie have lived in Greenwood Village since 1989. Their two sons were raised in Greenwood Village and recently graduated from Vanderbilt University and Wake Forest University. George enjoys travel, fly fishing, golf and spending time with family and friends.
Christie Lee is the State and Local Affairs Director for United Launch Alliance (ULA) headquartered in Centennial, Colorado. She has over 20 years of experience in state and local government and – prior to joining ULA in 2022 – she worked for 10 years in State and Local Government Relations at Lockheed Martin Space. She is involved in many local chambers of commerce and economic development organizations throughout multiple states and is the current Chair of the Colorado Competitive Council in the Denver Metro Chamber of Commerce and a past Board Chair of the South Metro Denver Chamber of Commerce. She also sits on the Colorado Space Business Roundtable Board, where she developed a two-week aerospace internship for rural high school and college students in the state of Colorado. This program, which has been running in Colorado for nine years, expanded to Alabama in 2021. She serves as the Co-Chair of the Colorado Chapter of Citizens for Space Exploration and manages and coordinates many Aerospace Days at the Capitol and other outreach events through the Aerospace States Association across multiple states including Alabama and Colorado. Christie also worked for Legislative Council at the Colorado General Assembly.
Christie graduated from Colorado State University with a BA in Political Science and holds a paralegal certificate from Denver Paralegal Institute.
Senior Vice President, Infrastructure Engineering Director
Merrick & Company
Mike Martin currently serves as a director on the Merrick & Company Board, where he also leads the firm’s Infrastructure Business Unit. Mike is a long-time Denver resident and actively volunteers within his community. Mike has 20 years of experience with increasing responsibilities, focusing in design of arterial and local roadways, intersections, storm drainage systems, water systems, and sanitary sewer systems, as well as the construction management and observation of those projects along the Colorado Front Range.
Diana grew up in southeast Denver and graduated from Thomas Jefferson High School. She is a Returned Peace Corps Volunteer and has spent her career working in the nonprofit sector. She and her husband raised their daughter and son who are now young adults in District 4. Diana’s career has been dedicated to ensuring that all children, youth, and families have access to the same opportunities that she and her family have enjoyed. She understands the long game of public policy, having built a statewide coalition to raise the profile of family, friend, and neighbor care, laying the groundwork for change years before the political appetite finally caught up. Her advocacy for early care and education, youth development, and out-school-time program and family support has anchored her values in community. Diana understands at her core that change happens when you listen to all voices, treat everyone with respect and dignity, lift up people who have been historically marginalized, and follow the data as well as your heart. Diana previously served as the President & CEO of Scholars Unlimited and is excited to work on behalf of the Denver South community.
Christine Sweetland was elected Mayor of Centennial following two terms representing District 2 on the City Council. A longtime resident and engaged community leader, Mayor Sweetland brings more than two decades of service to her role, driven by a vision to see Centennial thrive as a safe community where neighborhoods matter, businesses are valued and unique spaces are created for all to enjoy.
As she begins her term as Mayor, Christine’s goals focus on enhancing housing opportunity and affordability, expanding safe and multimodal transportation options, supporting local businesses and economic growth, and fostering an inclusive, connected community where residents of all ages can thrive. She is committed to keeping Centennial responsive, safe, forward-thinking and resilient in the face of change.
A Coloradan since childhood, Mayor Sweetland has long been engaged in volunteer efforts, fundraising and youth athletics, often alongside her husband Andy and their sons. She draws strength from her family and community roots, which have shaped her values and inspired her dedication to Centennial. In 2021, she faced stage 3 breast cancer and, throughout treatment, continued her service with resilience and optimism—emerging cancer-free and committed to supporting others facing similar challenges.
Outside of City Hall, Mayor Sweetland enjoys hiking, spending time with family and friends, supporting all of Colorado’s teams, especially the Denver Broncos, and exploring new books and travel. She and her husband have called Centennial home since 2001, raising their sons in the community they love, and remain dedicated to building strong connections that ensure the City’s continued vitality and character.
In 2026 Commissioner Van Winkle is serving as Vice Chair of the Board of County Commissioners.
In addition to his fundamental responsibilities as a County Commissioner, Mr. Van Winkle also serves as a representative of Douglas County by way of Board appointment, to the following area organizations: Douglas County Board of Health, Chatfield Basin Watershed Authority, Denver Regional Council of Governments (DRCOG), Developmental Pathways Board of Directors, Douglas County Housing Partnership, Community Services Block Grant Tripartite Board, Highline Canal Conservancy, Douglas County Sheriff’s Office Forfeiture Board, Unified Forensic Crime Lab, Denver South Economic Development Partnership Board of Directors, E-470 Public Highway Authority Board and Denver South I-25 Urban Corridor Transportation Management Authority.
Additionally, Commissioner Van Winkle shares in the Board’s responsibility for the County’s presence on the National Association of Counties (NACo) Transportation Policy Steering Committee, Partnership of Douglas County Governments, Metro Area County Commissioners, Highline Canal Conservancy, Douglas County Economic Development Corporation, Denver South Economic Development Partnership and Denver Regional Council of Governments – Subregional Transportation Committee.
He also serves on the following Colorado Counties, Inc. (CCI) Steering Committees: Taxation and Finance, Tourism and Economic Development, and Transportation & Telecommunications.
Prior to his role as a County Commissioner, Kevin served the people of Douglas County in the State Senate since June 2022. There Van Winkle was the Ranking Member of the Senate Finance Committee, providing oversight on legislation impacting the state’s $40 billion budget, and regularly stood in the gap to defend hardworking taxpayers and our Taxpayer’s Bill of Rights (TABOR). He also served on the Senate Judiciary Committee, the Committee on Legal Services, the Legislative Audit Committee, the PERA Oversight Committee he created, and was the only Republican to Chair a committee, the Tax Simplification Task Force. His work on this committee has been credited with moving Colorado from 39th in the State Business Tax Climate Index in 2017, to 21st in 2023.
Prior to his time in the Senate, Kevin served Douglas County for nearly eight years as a State Representative where he successfully championed for vital school safety improvements, created Colorado’s first new Judicial District since 1960 centered in Douglas County – activating in January 2025 as Judicial District 23; passed several large tax cuts, and was elected by fellow House members as the Assistant House Republican Leader.
Van Winkle has deep roots in Douglas County, the place he was born and raised, where he started his business and is raising his young family today. He lives in Highlands Ranch with his wife, Kelly and two children ages five and eight. He serves on the Board of Directors for the Douglas County Community Foundation, volunteers regularly at his children’s charter school, is a proud member of his church community, and plays on a local ice hockey team.