Singapore
3 Harbourfront Place,
Harbourfront Tower 2
Level 03-03/04
Singapore 099254
About us
Engineering solutions that connect people, places and possibilities.
For decades, TTW has shaped the built environment through collaborative engineering, bringing together people, ideas and expertise across borders.
What began in a shared Sydney office with three entrepreneurial engineers, Dick Taylor, Jock Thomson and Alan Whitting, has grown into an international consultancy delivering some of the region’s most complex projects. While our projects have evolved, one thing has remained constant. Our belief that great engineering starts with people.
TTW established its first Jakarta office in 1993, one of the earliest steps in our expansion into Southeast Asia. From our first office at Plaza Blok M in South Jakarta, the practice quickly took root in one of the city’s most dynamic built environments.
For much of the 2000s and 2010s, a team of around 30 to 40 people delivered projects across the region. By 2019 the team had grown to 50, and today the Jakarta office is home to more than 80 engineers, designers and specialists, reflecting both the scale of Indonesia’s infrastructure ambitions and the depth of trust our clients place in us.
Marten Eddy has led the Jakarta office as Executive Director since 2006, providing the continuity of leadership and local knowledge that long-term client relationships are built on. The office has moved with the times too, from Graha Chantia through to its current home at Arkadia Green Park, where the team has been based since mid-2025.
Our Heritage
Engineering with people at the heart
We challenge convention through thoughtful engineering and intelligent innovation. Advanced technology, evolving materials and practical construction insight allow us to solve complex problems with clarity and creativity. Technology expands what is possible. It is the insight, curiosity and collaboration of our people that turn possibility into built outcomes.
Local expertise. Global Reach.
With six offices across Australia and Southeast Asia, we offer local teams with local expertise whilst maintaining global reach. Our footprint supports our commitment to delivering practical solutions wherever our clients need us.
Jakarta
Arkadia Green Park,
Tower F, 5th floor
Unit 503-505
JL LetJend TB Simatupang Kav.88
Jakarta Selatan 12520
Brisbane
Level 4, 232 Adelaide Street Brisbane QLD 4000
+61 7 3496 9000Sydney
Level 6, 73 Miller Street North Sydney NSW 2060
Mailing: PO Box 738 Crows Nest NSW 1585
Canberra
Level 5, 224 Bunda St Canberra City ACT 2601
Mailing: PO Box 5320 Braddon ACT 2612
Melbourne
Level 13, 379 Collins Street, Melbourne VIC 3000
+613 9602 1433
Our Values
Purpose in our thinking. Collaboration in our approach. People at our core.
We proactively seek opportunities, lead with determination, and own our achievements
We prioritise availability, nurture relationships, and focus on delivering exceptional results
We combine diverse talents and ideas to innovate and achieve collective success
We proactively seek opportunities, lead with determination, and own our achievements
Our work is guided by four core values: Collaboration, Technical Excellence, Initiative and a Personal Approach. Together, they shape how we think, how we lead and how we deliver.
These values define who we are as engineers and as partners. They drive us to create thoughtful, practical solutions while fostering a culture of curiosity, accountability and long-term impact.
People first. Your vision, delivered with precision.
Our Impact
Our impact goes beyond engineering
Building the Next Generation
Our partnerships with leading universities and our Emerging Engineers Program provide structured pathways from graduate to Chartership, investing in the future of engineering whilst strengthening our industry for everyone.
