Terms of Use The Maryland Department of Transportation (MDOT) directory of certified firms is intended to be used as a guide for identifying certified Minority (MBE)/Disadvantaged (DBE)/Small Business Enterprise (SBE) firms and Airport Concession Disadvantaged Business Enterprise (ACDBE) firms to utilize on State and/or USDOT assisted contracts. Information in the Directory should be verified with the MDOT Office of Minority Business Enterprise (OMBE). The MDOT maintains the Directory for the purpose of providing a reference source of the firms certified by the MDOT. However, eligibility for certification does not mean that the firm meets all of the requirements needed to do business in the State. Therefore, users of this website should independently verify a firm’s ability to do business in Maryland. The Directory lists certified firms in alphabetical order and also contains information on the specific products and/or services the firm is certified to provide. The MDOT makes no claims, promises, or guarantees regarding a certified firm’s competence or capability to perform or enter into a contract. It is the responsibility of the user of the information provided in the Directory to make his/her own determination regarding the capability, competence, and/or limitations of a certified firm, as well as the firm’s ability to do business in the State. The MDOT makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the contents of this web site and expressly disclaims liability for errors and omissions in the contents of this web site. No warranty of any kind is given with respect to the contents of this web site or any links to other web sites it may contain. Reference in this web site to any specific commercial product, process, or service, or the use of any trade or business name is for the information of the public and does not constitute an endorsement or recommendation by the MDOT. Information presented on this web site is considered public information and may be copied and/or distributed. If there is a question concerning the validity of the information provided in this directory, contact the MDOT Office of Minority Business Enterprise. You may contact the office at (410) 865-1269 or (800) 544-6055.