One2three Naval Architects

One2three Naval Architects is an independent Australian naval architecture and marine design house based in Sydney. It began life as Quigley Marine Designs in 1997 and was renamed One2three Naval Architects in 2005. The firm is led by a small group of seasoned pioneers within Australia's maritime industry and has grown into a core team of 18 naval architects and experienced draftspersons. The design team brings over three decades of combined maritime experience and has designed more than 300 vessels operating in over 30 countries. The company specialises in the design of high-speed aluminium ferries and other commercial craft, and its portfolio spans monohulls, catamarans, trimarans, defence vessels, sustainable designs, and luxury craft. One2three uses advanced design software including CFD (computational fluid dynamics), FEA (finite element analysis), and 3D parametric CAD modelling to produce full 3D deliverable packages for vessel structure and systems, complete with assembly drawings and nested parts to minimise shipyard production time and cost. One2three is widely recognised as one of the most innovative and technically competent design teams in the world. Its combined achievements include the development and successful commercialisation of world-first projects such as "Triumphant", a 55-metre 40+ knot trimaran ferry. The firm operates from the historic 1901 Cooperage building on the banks of Sydney Harbour, a light-filled studio designed to inspire its multi-disciplinary team of naval architects, draftspersons, 3D creatives, and CAD designers. The company's culture emphasises close collaboration, team spirit, and inclusivity, with equality and neurodiversity valued as qualities in employees and the workplace. One2three describes itself as cultivating "a great company, not a big one", maintaining its independence and boutique scale while serving clients globally.

One2three Naval Architects traces its origins to 1997, when it was founded as Quigley Marine Designs by Steve Quigley and a small group of seasoned pioneers within Australia's maritime industry. The firm was established in Sydney and initially operated as a naval architecture practice focused on commercial and high-speed craft. In 2005, the company evolved and rebranded as One2three Naval Architects. The name change reflected a broader ambition to build a design house known for innovation and technical excellence. The firm adopted the philosophy of cultivating "a great company, not a big one", deliberately maintaining a boutique scale while expanding its capabilities and global reach. Over the following years, One2three grew into a core team of 18 naval architects and experienced draftspersons. The design team accumulated over three decades of combined maritime experience, with members spending tens of thousands of sea-miles and years on the shipyard floor. This hands-on experience informed the firm's practical approach to design and production support. The company's portfolio expanded to include over 300 vessels designed for clients in more than 30 countries. One2three became particularly known for high-speed aluminium ferries and other commercial craft, and for the development and successful commercialisation of world-first projects. Among these is "Triumphant", a 55-metre trimaran ferry capable of speeds exceeding 40 knots, which demonstrated the firm's ability to deliver innovative, high-performance vessels. One2three operates from the historic 1901 Cooperage building on the banks of Sydney Harbour. The building was originally constructed to manufacture barrels for storing rum, and its conversion into a light-filled, open-plan design studio reflects the firm's blend of heritage and modernity. The studio is designed to inspire a multi-disciplinary team of naval architects, draftspersons, 3D creatives, and CAD designers. The firm continues to offer a full design service, using the latest design software including CFD, FEA, and 3D parametric CAD modelling to output complete 3D deliverable packages for vessel structure and systems. These packages include assembly drawings and nested parts to minimise shipyard production time and cost. One2three remains an independent design house, recognised as one of the most innovative and technically competent design teams in the world.

• 2005

  Rebranded as One2three Naval Architects.

• 1997

  Founded as Quigley Marine Designs in Sydney, Australia.

• Developed and commercialised "Triumphant", a 55m 40+ knot trimaran ferry.

• Designed over 300 vessels in 30+ countries.

Independent, innovative, and technically competent boutique naval architecture firm focused on high-speed commercial craft and world-first projects.

• High-speed aluminium ferries

• Commercial craft

• Monohulls

• Catamarans

• Trimarans

• Defence vessels

• Luxury vessels

• Sustainable vessel designs

1. 1Boat Design | One2three Naval Architects | Sydneyone2three.com.au
2. 2About | One2threeone2three.com.au
3. 3One2Three - Wikidatawikidata.org