Team

Sarah Nelson

Sarah Nelson joined the A1 Development team at the start of 2025, bringing in a diverse background centered around project management. She grew up on a crop & cattle farm near Lake Preston, SD and attended South Dakota State University for four years before transferring and finishing her degree at North Central University in Minneapolis, […]

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Mallory Towle

Mallory Towle grew up on a family farm in Finley, North Dakota, where she enjoyed the perks of rural life, including sports and small-town experiences. She began her college education at Minot State before transferring to Minnesota State University Moorhead, studying communications and education. In 2013, Mallory met her husband in Fargo North Dakota, and

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Aaron Drenth

Aaron Drenth joined A1 Development Solutions in July of 2024 as a Project Engineer, bringing a diverse background and knowledge in agriculture, engineering, and program management. Prior to A1, Aaron served in the active-duty Air Force for over 20 years. His most recent assignment before joining A1 was teaching Mechanical Engineering at the United States

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Heather Kostboth

Heather Kostboth joined A1 Development Solutions as the firm’s Business Manager in May of 2018, bringing a vast background in office administration, communications, outreach, and creative solutions to the organization. She was raised on a family livestock and row cropping operation near Canistota, SD, which provided her with a true understanding of the agriculture industry,

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Cole Christian

Cole Christian joined A1 Development Solutions in January of 2024 as a Project Manager, bringing a diverse background and knowledge in agriculture, finance, and real estate. Born and raised in the Sioux Falls area, he grew up active in his family’s row crop and cattle operation in southwestern Minnesota. Cole earned a bachelor’s degree in

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Tim Czmowski

Tim Czmowski joined the A1 Development team in the winter of 2022, bringing a vast background in dairy processing and sales and an immeasurable passion for public service. Tim’s devotion to the dairy industry began at an early age, having grown up on a dairy farm near Webster, South Dakota. Tim served our great country

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Kyle Peters

Kyle Peters joined A1 in May of 2021, bringing extensive knowledge in finance, economic development, government affairs & strategy, public relations, and agriculture. Kyle grew up on a row crop and cow/calf operation just outside of White Lake, SD. Kyle left the farm to earn a bachelor’s degree in Agricultural Economics at South Dakota State

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Mark Mickelson

G. Mark Mickelson co-founded A1 Development Solutions in April 2017.  Mickelson is a Certified Public Accountant (inactive), a member of the South Dakota Bar Association, and President of Mickelson & Company, LLC. Mark is an active owner in the ongoing development of 200 acres of land in northwest Sioux Falls, and provides capital advisory and

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Ty Eschenbaum

Ty Eschenbaum grew up on a row-crop farm and seedstock Charolais cattle operation in east central South Dakota, which brings a deep-rooted background in business and production agriculture to the A1 Team. Ty attended South Dakota State University as a Briggs Scholar, receiving degrees in Agricultural Business and Entrepreneurship before spending time in economic development

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Paul Kostboth

Paul Kostboth founded A1 Development Solutions in April 2017 out of recognition of a need for a full “A-Z” service provider that can guide projects through the multiple challenges which come with development from initial site identification all the way through construction. Prior to A1, Paul served as the Director of Ag Development for the

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