DMY projects in the Commonwealth of Virginia

DMY Maryland Has A New Address!

DMY’s Maryland office has moved, and we have a new address. We are still located in Gaithersburg, Maryland and will continue to offer a full range of services from the new location. 

We are now located at 7917 Cessna Avenue, Units L & M, Gaithersburg, Maryland 20879

Public Sector


On January 11, 2010, DMY Engineering Consultants was born. In just six years DMY grew from an AASHTO certified lab operating out of our founder Wayne Ma’s garage, to a 50-person firm with three offices, nine Professional Engineers and a presence at some of the largest project sites in the Washington metropolitan area. All of this would have been impossible without the hard work and dedication of our staff and the trust of our many clients and partners. We look forward to many more years of success and many more anniversary celebrations!

DMY Milestones

  •  January 11, 2010 – DMY is founded by Wayne Ma, PE, offering geotechnical and construction materials testing services
  • 2010DMY began to work on public sector projects including Phase I of the Dulles Metrorail Silver Line 
  • 2011 – Wamiq Hamid, PE and Paul Zhang, PE joined the firm as Vice Presidents
  • 2012DMY added drilling to its line of services
  • 2013 – DMY Capitol, a DMY affiliate company, was founded to better serve clients in the District of Columbia
  • 2014 – DMY established its marketing/business development department led by David Arwood
  • 2015 – DMY opened an office in Gaithersburg, Maryland led by Bob Holstead, PE
  • 2015 – DMY added facilities/building enclosure services led by Steven Arthur and environmental services led by Jeffery H. Mitchell, PG, LRS


DMY Logo Large (JPG)

Building Enclosure Services






Daniel Pao Practice Leader, Drilling

Mr. Daniel Pao has over thirteen years of drilling experience in various residential and commercial projects in the Washington DC, Maryland, Virginia, and Pennsylvania area. He is very familiar with the local geology and drilling requirements and is very knowledgeable in roadway soil borings and post-hole clean-up and repair as well as proper drill rig access and set-up in live traffic. Mr. Pao has operated various drill rigs, including CME 45C, CME 55LC, CME 550, CME 75, CME 55, Acker Scout, Diedrich D50, Simco Skid Rig, Little Beaver Mechanical Drill, as well as Tripod. He has successfully performed drilling related tasks such as: Hollow Stem auger drilling, NW/L rock coring, Mud Rotary drilling, Monitoring Well Installation, Seismic Geophone Installation, Inclinometer Installation, Temporary Piezometer, Collaboration with Pressure Meter testing, Percolation Test Pipe Installation, Infiltration Testing, DCP testing, and Well Abandonment. Mr. Pao also has experience managing drill crews who speak foreign languages. He is fluent in English, Spanish, and Mandarin Chinese.

Phase I, Dulles Metro Rail

    This project involved the design and construction of a 23.1-mile extension of the existing 103-mile long WMATA rail system. Upon completion, Dulles Metrorail will provide high-quality, high-capacity transit service in the Dulles Corridor. New Metrorail service in the corridor will result in travel time savings between the corridor and downtown D.C., expand the […]

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