landrum & brown d2 consult international gmbh ross & baruzzini currie & brown maffeis integral group pfal about dar group dar group around the world dar group is a multinational group of consulting firms covering a spectrum of specialized design and consultancy services . our individual excellence is strengthened by integration . some of the most recognizable names in the industry are proud members of dar group . we draw on the resources and expertise of the entire network . we are a 17 000 strong workforce spread across the us europe the middle east and africa . our people dedicate their will wisdom and effort to transform physical environments for the better . the dar group is an international network of professional service firms comprised of over 17 000 staff members assisting clients in over 100 countries around the world . we re dedicated to planning designing engineering and project managing facilities installations and structures that contribute to the sustainable advance of communities worldwide . with its principal offices in beirut cairo london pune amman chicago san francisco hong kong taipei singapore paris cincinnati linz st. louis johannesburg and vicenza dar group operates from a total of 193 offices in 46 countries spanning the americas europe australasia the middle east africa and asia . founded in 1956 dar al handasah shair and partners is one of the world s leading international consultancies with five design centers in beirut cairo london pune and amman and 45 regional operation offices in 30 countries throughout the middle east europe africa asia and commonwealth of independent states cis countries . visit website perkins will is a global architecture and design firm with 24 offices focusing on local regional and global work in a variety of sectors including commercial civic cultural healthcare education science and technology and transportation . the firm which was established in 1935 became part of the dar group in 1986 . visit website founded in san francisco in 1954 t.y. lin international is internationally recognized for excellence in civil and structural engineering . the award winning firm specializes in the planning design and construction engineering inspection of public and private infrastructure . operating from offices throughout the us and asia t.y. lin international has a wellfounded reputation for providing clients with engineering solutions that are of high quality responsive to need innovative cost effective and constructible . visit website penspen provides studies engineering and operations and integrity and maintenance services to the global oil and gas industry . founded in 1954 the firm has completed over 5 000 pipeline and pipeline related projects in over 40 countries . visit website r & h provides comprehensive and integrated consulting services to the railway sector . with over half a century of railway planning and offices throughout south africa r & h is one of africa s largest private rail consultants . visit website ipa advisory is a leading independent advisory practice providing professional consultancy services in markets & transactions regulation & policy and ppp across the energy water and infrastructure sectors with extensive international experience across the uk europe middle east africa and asia . visit website founded in 1949 l & b is one of the world s oldest and most accomplished aviation planning consultancy firms . it provides services to the top 50 usa airports . in the last 10 years it expanded its global reach to the aviation markets in greater china asia australia and the middle east . visit website founded in 1985 d2 is specialized in modern infrastructure automated tunnelling and complex lining systems . the firm is renowned for innovation and groundbreaking problem solutions . d2 has its roots in applied research carried out on behalf of the austrian construction industry . visit website founded in 1953 ross & baruzzini provides professional engineering technology consulting architectural and construction administration to clients in the education government healthcare and transportation industries . specialties include it consulting security systems wireless communications systems engineering fire protection mechanical and electrical engineering . visit website one of the world s leading construction consultancies currie & brown is dedicated to advising clients in respect of the management and utilization of their physical assets . the firm provides a range of construction management specialist skills including cost management project management building surveying pfi ppp services due diligence sustainable working and other associated advisory services . visit website founded in 2000 and based in northern italy maffeis is one of the world few leading engineering firms in the field of tension membrane fabric structures and etfe foil designs for long span structural applications such as stadia covers fa ades and retractable roofs systems . visit website integral group is an interactive global network of mechanical electrical plumbing and energy engineers collaborating under a single deep green engineering umbrella . we specialize in the design of simple elegant cost effective systems for a wide variety of project types residential mixed use critical environments cleanrooms laboratories and data centers industrial facilities office buildings educational facilities civic and commercial buildings . with a staff over 250 located in twelve offices across canada the united states and great britain integral group is regarded as an innovative leader in building system design . visit website pfal based in san francisco usa provides financial advisory services to public and private sector clients for infrastructure and real estate projects with a specialization in ppp delivery models . this includes evaluating project delivery options including concession based ppp models to identify the best value project delivery solution in line with international practices ; developing and executing highly competitive financial plans designed to achieve the lowest cost of capital ; and structuring and executing ppp procurements . visit website back to top