About Us For more than eleven years, D MANUFACTURING HOLDINGS, LLC as supplied its customers with more than a just servers, racks, or parts and pieces. We are a business partner, a trusted provider of comprehensive product lines and infrastructure solutions, backed by a solid guarantee, fast and friendly service, and incredible sourcing capabilities. Our mission is to listen to our client's specific needs and deliver high performance products through continuous product innovation and operational excellence. We carry complete product lines from Kendall Howard, Middle Atlantic, Rittal, and Eaton.