Dong-Ah Geological Engineering Dong-Ah Geological Engineering (also known as 동아지질) is a construction company that specializes in engineering works. | ![]() Dar Al Riyadh Dar Al Riyadh is an engineering company that provides professional services and solutions for government, institutions and corporate clients. | JMT JMT (Johnson, Mirmiran, and Thompson) is a provider of planning, design, and construction management services. | |||
Founding Date | Founding Date 1971 | Founding Date 1975 | Founding Date 1971 | Founding Date 1957 | Founding Date 1923 |
Type | Type Public | Type Private | Type Private | Type Private | Type Private |
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Locations | Locations KR HQ | Locations Riyadh, SA HQ | Locations Cockeysville, US HQ | Locations Paris, FR HQ Genève, CH London, GB | Locations Baltimore, US HQ Allentown, US Atlanta, US Austin, US Bridgeville, US Bristol, US Charleston, US see more |
Employees | Employees 251 | Employees 3,0332% increase | Employees 2,1212% increase | Employees 1,6091% increase | Employees 1,8592% increase |

Dar Al Riyadh is an engineering company that provides professional services and solutions for government, institutions and corporate clients.
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