From leading iconic and imaginative projects to influencing better standards and industry practice, Arup Fellows embody our commitment to ‘total design’, the highly collaborative and multidisciplinary ethos that Arup brings in pursuit of user-centric, thoughtful and socially valuable design solutions for our clients, and our planet.

The new Arup Fellows, Chris Carroll, TC Chew, Susana Saiz, Mitsuhiro Kanada and Mohammad Tabarra, epitomize what it is to be world class innovators in their field, with the ingenuity, vision and deep expertise to influence and inspire both our firm, but also the global industry.

Watch the video below to meet our new Fellows:

Chris Carroll

Chris has over 30 years’ experience as a highly skilled structural engineer and an influential building design leader. Chris has delivered many genuinely iconic projects around the world, continually pushing boundaries in terms of creative design, technical excellence, and innovation. Investing heavily in skills relating to sustainability, he is Arup’s partnership director for our membership of the World Business Council for Sustainable Development. In this role, Chris facilitated Arup’s engagement with the WBCSD Built Environment Market Transformation Action Agenda to shape a common framework that actors across the buildings value chain can support. At COP26, Chris launched a programme of presentations to address the importance of whole life carbon as a means of framing net zero buildings. His keynote address at the first-ever Global Building and Climate Forum, Paris 24, centered on COP28 Buildings Breakthrough significantly advance the global dialogue on sustainable building practices, inspiring actionable commitments towards a decarbonised future. Chris is dedicated to sharing knowledge with Arup’s members, promoting the importance of creative design and skills development to our early career engineers and leaders of the future – something he will continue and expand in his new role as Arup Fellow.

TC Chew

TC is globally recognised as a trusted and respected rail professional; both as an engineer, rail system practitioner and rail industry expert as demonstrated by his role of Fellow of five international professional associations. He has made significant contributions to the rail industry, evident through over 50 published papers and presentations at prestigious international conferences and seminars held in Europe and Asia Pacific. TC demonstrates a track record in driving change and strategic thinking with our clients and internal teams. His engagement in project work, championing decarbonisation and circular economy principles for example, position him as a trusted advisor globally in the rail industry. His depth of experience and unique insights provide a global view of the key challenges our clients will face in the future enabling Arup to be agile in our response. He mentors and coaches emerging rail leaders, fostering skill development and business growth. He nurtures the next generation of leaders by sharing his experience and providing practical, hands-on guidance and leveraging his extensive network and expertise to drive meaningful outcomes.

Susana Saiz

Susana is is an architect by training, with a PhD in Nature Based Solutions and exceptional skills in system thinking and integrated design. She brings deep knowledge and expertise to a vast portfolio of projects globally, and has managed the design and implementation of sustainability frameworks on more than 100 projects worldwide. Susana lectures in several universities on sustainability in the built environment and collaborates with institutions like USGBC and IWBI to foster innovative and impactful partnerships. She helps to promote and embed the UN Sustainable Development Goals (UNSDGs) in our daily practice, acknowledging the demands from our people, our clients and our environment. Susana’s work with the European Commission has influenced policy development, including e-learning programs for the Level(s) sustainability frameworks and support for policies like the Energy Performance of Buildings Directive.

Mitsuhiro Kanada

Mitsuhiro is a distinguished structural engineer. His research spans timber-CFRP hybrid structures, 1,300-year-old FRU, and timber-steel hybrid bridges. He is the recipient of awards including the Gengo Matsui Award and IStructE Award. His innovative work has garnered international attention, including features on the Discovery Channel for eminent projects like Maison Hermes and the Taichung Metropolitan Opera House. Notably, Mitsuhiro designed the Japan Pavilion for Expo Milan 2015, creating an innovative design proposal which made it possible to construct the beautiful timber structure. He was also instrumental in the design of the Minna no Mori Gifu Media Cosmo, a timber design that reduced energy consumption by 50% compared to typical libraries in Japan, as well as a sustainable pavilion for Gwangju Biennale Folly in 2024. Mitsuhiro has lectured on the Gifu Media Cosmos at the 27th International Wood Construction Conference in 2023, speaking on circularity in building design. Mitsuhiro recognises the importance of providing opportunities for Arup’s junior members to gain recognition and leads a variety of initiatives to develop their skills and external networks.

Mohammad Tabarra

Mohammad is a world class expert in tunnel ventilation systems, employing his specific expertise to innovative ventilation concepts, detailed designs and cost-saving alternatives, focused on reducing construction impacts and costs. Mohammad embodies Arup’s sustainability goals by bringing alternative, nature-based solutions into a field of risk-averse conservatism. He chaired the prestigious International Symposium of Aerodynamics, Ventilation & Fire in Tunnels in 2022 in the UK. His portfolio includes HS1 (Channel Tunnel Rail Link) Thames Tunnel using Saccardo nozzles, King’s Cross Underground Station in London, Second Avenue Subway project in New York, Abu Dhabi International Airport APM, Fehmarnbelt Fixed Link, Marmaray Crossing and Eurasia tunnel in Istanbul, and other metro projects in LA, Edmonton, Toronto, Montreal, Istanbul, Singapore, Kuala Lumpur, Melbourne and Sydney. His most recent input on M5 metro project in Copenhagen is the result of client’s trust in his previous role on Cityringen project. Mohammad has developed a standing and reputation in the industry that clients seek out - he is recognised as a top expert in the Tunnel Ventilation field globally, which impacts Arup’s success in winning the firm’s largest metro & tunnel ventilation projects. Mohammad’s external influence is demonstrated through his role as a Fellow of the Institute of Mechanical Engineers and over 50 publications, and internally through continuous training of numerous engineers at Arup offices worldwide. Mohammad is passionate about and maintains his interest in renewables such as wind and solar energy.