Tammie Garner, Director of Business Development


Tammie has 24 years of professional experience in corporate management, contract management and compliance, new business development, marketing, operations, accounting, and administration.


Tammie joined the OneSource team in April 2015. She has supported OneSource in the areas of business development, operations, administration and human resources; and plays an instrumental role in the success of the firm. Prior to joining OneSource, Tammie owned and operated a successful government contracting firm specializing in construction services. She successfully completed projects for numerous government agencies and large general contracting and construction management firms. Tammie currently serves as Chair of the Construction Accounting Network Marketing Committee and Co-Chair of the Prince George’s County Chamber of Commerce Women in Business Development Committee.



800.974.3158 x 103

Industry Specialties:


Construction Management General


Contractor Specialty Construction


Highway/Street Wrecking/Demolition


Environmental Remediation

Service Specialties:


Project Management Contract


Management Compliance


Quality Control






CAN helps you gain a competitive advantage in the face of a changing economic landscape.