| Name | Global Regions | Particular technical expertise | Country(ies) | City | |
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| Zoppis, Eugenio | | | | Aprilia | View |
| Yaremko, Volodymyr | | | | Kyiv | View |
| Yang, Fan | | | | Hong Kong SAR | View |
| Wright, John | East Asia & Pacific, Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, North America, Sub-Saharan Africa | Architecture, Building and Civil Engineering, Chemical Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Manufacturing and Process Plant, Marine Civil Engineering, Metro railway and stations, Metals and Mining, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | | London | View |
| Werth, Robert Aloys | East Asia & Pacific, Europe & Central Asia, Middle East & North Africa, Sub-Saharan Africa | Building and Civil Engineering, Electrical and Mechanical Engineering, Environmental issues, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Manufacturing and Process Plant, Marine Civil Engineering, Metro railway and stations, Pipelines, Power / Energy, Road and Storm water Defence Works, Tunnels and Shafts, Waste Treatment and Pumping Plant | Armenia, Austria, Canada, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Ethiopia, France, Georgia, Germany, Indonesia, Latvia, Lithuania, Malta, Poland, Russia, Rwanda, Slovakia, Slovenia, Tanzania, United Republic of, Turkey, Uganda, Ukraine, United Arab Emirates, Serbia and Montenegro | | View |
| Werth, Robert Aloys | | | | Essen | View |
| Waters, Damian Paul | | | | Wilmslow | View |
| Wall, George | | | | Singapore | View |
| Veselinovic, Zoran | | | | Mahmutlar | View |
| Veselinovic, Marko | | | | Belgrade | View |
| Vencl, Vladimir | | | | Belgrade | View |
| van Langelaar, Anton | East Asia & Pacific, Europe & Central Asia, Middle East & North Africa, Sub-Saharan Africa | Building and Civil Engineering, Geotechnics and foundations, Infrastructure, Railways, Bridges, Metro railway and stations, Pipelines, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | Congo, The Democratic Republic of the, Eritrea, Kenya, Lesotho, South Africa, Taiwan, Tanzania, United Republic of, Turkey, Zambia | Highveld | View |
| Tsaturova, Nina | | | | Tbilisi | View |
| Tozer, Barry | | | | Wentworth Point | View |
| Taggart, Paul | East Asia & Pacific, Europe & Central Asia, Latin America & Caribbean, South Asia, Sub-Saharan Africa | Architecture, Building and Civil Engineering, Electrical and Mechanical Engineering, Environmental issues, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Marine Civil Engineering, Metro railway and stations, Metals and Mining, Pipelines, Power / Energy, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | China, Costa Rica, Denmark, Egypt, Ethiopia, Georgia, Germany, Iraq, Italy, Kazakhstan, Lebanon, Malaysia, Moldova, Nigeria, Pakistan, Panama, Poland, Qatar, Saudi Arabia, Singapore, Tanzania, United Republic of, Turkey, Uganda, United Arab Emirates | Rome | View |
| Stylianou, Platonas | | | | Nicosia | View |
| Spence, Kevin | East Asia & Pacific, Europe & Central Asia, Middle East & North Africa, Sub-Saharan Africa | Building and Civil Engineering, Environmental issues, Hydro projects, Infrastructure, Railways, Bridges, Pipelines, Power / Energy, Road and Storm water Defence Works | Botswana, Ethiopia, Kenya, Lesotho, Mozambique, Namibia, South Africa, Swaziland, Uganda, Zambia | Johannesburg | View |
| Spassova, Adriana | | | | Sofia | View |
| Sonbahar, Metehan Caglar | | | | London | View |
| Soh, Lieh Sieng | | | | Kuala Lumpur | View |
| Smith, Robert | | | | | View |
| Smith, Geoffrey | East Asia & Pacific, Europe & Central Asia, Middle East & North Africa, South Asia, Sub-Saharan Africa | Building and Civil Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Manufacturing and Process Plant, Metro railway and stations, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Tunnels and Shafts | Algeria, Belgium, Bosnia and Herzegovina, Botswana, Cambodia, Cameroon, China, France, Germany, Ghana, Greece, Indonesia, Iraq, Kenya, Lebanon, Malaysia, Malta, Netherlands, Nigeria, Philippines, Romania, Russia, Saudi Arabia, Senegal, Sri Lanka, Taiwan, Tanzania, United Republic of, Thailand, Togo, United Arab Emirates, United Kingdom, Viet Nam | Paris | View |
| Sliwinski, Robert | Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, North America | Building and Civil Engineering, Electrical and Mechanical Engineering, Infrastructure, Railways, Bridges, Manufacturing and Process Plant, Metro railway and stations, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Tunnels and Shafts, Waste Treatment and Pumping Plant | United Arab Emirates, United Kingdom | | View |
| Sliwinski, Robert | | | | Dubai | View |
| Shiwakoti, Dinesh | | | | Metro Manila | View |
| Servert, Jorge | | | | Madrid | View |
| Schneller, Yann | | | | Paris | View |
| Sauvaget, Guillaume | | | | Paris | View |
| Sanjeewa, Prasath | | | | Elpitiya | View |
| Sahin, Basar | | | | Istanbul | View |
| Saad, Anton | | | | Amman | View |
| Ruggiero, Marco | | | | Vacallo | View |
| Ross, Derek | Europe & Central Asia, Middle East & North Africa | Building and Civil Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Marine Civil Engineering, Metro railway and stations, Pipelines, Road and Storm water Defence Works, Rock Anchors & grouting | | Weybridge | View |
| Rosenberg, George | | | | Plymouth | View |
| Rigoni, Giovann B. | | | | Bucharest | View |
| Rees, John Gordon | East Asia & Pacific, Europe & Central Asia, Middle East & North Africa | Building and Civil Engineering, Geotechnics and foundations, Hydro projects, Marine Civil Engineering, Pipelines, Power / Energy, Tunnels and Shafts, Waste Treatment and Pumping Plant | | | View |
| RE, Thierry | | | | Paris | View |
| Rattray, Suzanne | | | | Lusaka | View |
| Pratt, Stephen | | | | | View |
| Perry, James | East Asia & Pacific, Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, North America, South Asia, Sub-Saharan Africa | Architecture, Building and Civil Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Manufacturing and Process Plant, Marine Civil Engineering, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | Albania, Algeria, Argentina, Australia, Azerbaijan, Bangladesh, Czech Republic, Ethiopia, France, Georgia, Germany, Greece, Guatemala, Hungary, Indonesia, Japan, Lebanon, Malaysia, Morocco, New Caledonia, Nigeria, Panama, Peru, Poland, Romania, Senegal, Spain, Gambia, Togo, Tunisia, Turkey, United Kingdom, United States, Venezuela, Viet Nam | Paris | View |
| Patterson, Lindy | East Asia & Pacific, Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, North America | Architecture, Building and Civil Engineering, Chemical Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Lawyer, Manufacturing and Process Plant, Marine Civil Engineering, Metro railway and stations, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Tunnels and Shafts, Waste Treatment and Pumping Plant | Afghanistan, Albania, Brazil, Virgin Islands, British, Bulgaria, Canada, Croatia, Egypt, France, Georgia, Germany, Hungary, Indonesia, Iraq, Ireland, Italy, Jordan, Kuwait, Nepal, Netherlands, Nigeria, Oman, Poland, Qatar, Romania, Russia, Saint Lucia, Saudi Arabia, Singapore, South Africa, Trinidad and Tobago, Turkey, Ukraine, United Arab Emirates, United States, Yemen | London | View |
| Papworth, John | East Asia & Pacific, Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, South Asia, Sub-Saharan Africa | Building and Civil Engineering, Chemical Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Manufacturing and Process Plant, Marine Civil Engineering, Metals and Mining, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Tunnels and Shafts, Waste Treatment and Pumping Plant | | Bridgwater | View |
| Palmitessa-Savric, Patrizia | | | | Gaborone | View |
| Palacios, ignacio | | | | Estepona | View |
| Owen, Gwyn | Europe & Central Asia, Latin America & Caribbean, Middle East & North Africa, North America, South Asia, Sub-Saharan Africa, International | Building and Civil Engineering, Electrical and Mechanical Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Marine Civil Engineering, Metro railway and stations, Natural gas and LNG Facilities, Pipelines, Power / Energy, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | Angola, Argentina, Australia, Bolivia, Botswana, Brazil, Bulgaria, Chile, China, El Salvador, Equatorial Guinea, Ethiopia, Gibraltar, Honduras, Italy, Kazakhstan, Korea, Republic of, Morocco, Mozambique, Nigeria, Oman, Panama, Peru, Philippines, Qatar, Romania, South Africa, Spain, Sri Lanka, Sudan, Trinidad and Tobago, Venezuela, Kosovo | Caernarfon | View |
| Omoto, Toshihiko | East Asia & Pacific, Latin America & Caribbean, Middle East & North Africa, South Asia, Sub-Saharan Africa | Building and Civil Engineering, Geotechnics and foundations, Hydro projects, Infrastructure, Railways, Bridges, Irrigation and Land Reclamation, Manufacturing and Process Plant, Marine Civil Engineering, Metro railway and stations, Road and Storm water Defence Works, Rock Anchors & grouting, Tunnels and Shafts, Waste Treatment and Pumping Plant | | Bunkyo | View |
| Nowaczyk, Piotr | | | | Warsaw | View |
| NICULESCU, Florin | | | | Bucharest | View |
| Nicolson, John | | | | Mauchline | View |
| Nam Trung, Nguyen | | | | Hochiminh city | View |