DA

Duncan Amrein

Outside Sales at Guaranteed Supply Company

Duncan Amrein has extensive experience in sales and business development, currently serving as an Outside Sales representative at Guaranteed Supply Company since December 2024. Prior to this role, Duncan held positions as a Sales Executive at LHH and as an Account Development Representative at Avalara, where responsibilities included connecting with Mid-Market companies to address growth and tax compliance challenges. Previous roles also include Sales Development at Kelvin, Business Development Manager at Inxeption, and Named Account Executive at Konica Minolta Business Solutions, focusing on enhancing business performance through technology assessments. Duncan's career began with an internship at OnPoint Warranty Solutions, and athletic participation as a baseball player at Bellarmine University, where a Bachelor’s degree in Business Administration and Management was earned.

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Charleston, United States

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Guaranteed Supply Company

Guaranteed Supply Company® distributes the highest quality construction products available. We carry a full line of concrete accessories, EIFS /Stucco, masonry, waterproofing materials and finishes. In addition, Guaranteed Supply Company is a full service rebar fabricator and forming supplier. MISSION To provide superior services to our customers in the construction and industrial building products market, while buying and selling quality products at minimum cost, and thus providing maximum profits for our customers. VISION To be the first choice of our customers HISTORY In 1964 Mr. Allan Ward formed Guaranteed Supply Company® to supply specialty products to the construction trades. Having years of experience in the construction industry, Mr. Ward felt there was a need for a quality supplier who could promote, recommend, deliver and service specialty items to the industry. Service to the customers was the number one priority. His motto "If you can't find it, call Guaranteed, we will find it for you"​ still prevails today.