![]() Landrich Holding Landrich Holding (蘭德里奇控股有限公司) is a provider of construction work and engineering services. | ![]() Dar Al Riyadh Dar Al Riyadh is an engineering company that provides professional services and solutions for government, institutions and corporate clients. | Engineering Consulting Services Engineering Consulting Services (ECS) is a consulting engineering company. | |||
Founding Date | Founding Date 2007 | Founding Date 1975 | Founding Date 1988 | Founding Date 1923 | Founding Date 1967 |
Type | Type Public | Type Private | Type Private | Type Private | Type Private |
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Locations | Locations HQ | Locations Riyadh, SA HQ | Locations Chantilly, US HQ Fredericksburg, US | Locations Baltimore, US HQ Allentown, US Atlanta, US Austin, US Bridgeville, US Bristol, US Charleston, US see more | Locations HQ |
Employees | Employees N/A | Employees 3,0332% increase | Employees 2,4823% increase | Employees 1,8592% increase | Employees 3,075 |

Dar Al Riyadh is an engineering company that provides professional services and solutions for government, institutions and corporate clients.
View companyEngineering Consulting Services (ECS) is a consulting engineering company.
View companyRK and K (Rummel, Klepper, and Kahl) is a civil engineering firm.
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