D.G. Jones & Partners was founded in 1962 by Donald G. Jones, FRICS. The practice is bound by the rules and regulations of the Royal Institution of Chartered Surveyors.
D.G. Jones & Partners is recognised as one of the leading practices of Quantity Surveyors and Projects Managers / Construction Managers in the Middle East.  We are totally conversant with the Arabic / Islamic Culture and can draw on the knowhow and contacts, which, have been built up over 45 years of operations in the Middle East.
The Middle East practice has become one of the most widespread consultancy practices specialising in Project Management, Construction Cost Control, Quantity Surveying, Contract Management, Property Valuation, Arbitration, Claims Management as well as Fitout & Move Management. The practice now employs more than 600 professional staff with Offices in Lebanon, Dubai, Abu Dhabi, Doha, Bahrain, Cairo, Kuwait, Iraq, Jordan and the Kingdom of Saudi Arabia in addition to the associated offices in Oman, Libya, Syria, Algeria, Pakistan and Sudan.
The practice works with and provides services to Owners directly and also to international and local construction consultants.  As a result of the depth of experience in the Middle East and internationally the practice is called upon to provide specialist advice and services to Government and Municipal Departments, Financial Institutions and Developers.

Davis Langdon, formerly known as Davis Langdon Arabian Gulf has been established in Doha since 1974.   
As Chartered Quantity Surveyors their activities include:
• Construction cost and contract consultancy
• Financial administration of construction contracts
• Feasibility studies, life cycle costing, costs-in-use and value analysis
• Project management; property valuations
Davis Langdon is part of  Davis Langdon and Seah International, a major international network of quantity surveyors, project managers and construction cost consultants, able to offer  research and consultancy services in all aspects of construction economics. Presently 2800 staff are employed in 85 offices throughout 30 countries around the world.