<h2>About Tobishima Corporation</h2>
<p>Tobishima Corporation is a Japanese general contractor founded in 1883 and headquartered in Tokyo. Originally established as Tobishima Civil Engineering, it adopted its present name in 1965 and is listed on the Tokyo Stock Exchange. Its first recorded commission - demolishing the eastern enclosure of Fukui Castle - places the company among the oldest continuously operating construction businesses in Japan.</p>
<p>Across more than 140 years the firm has built a body of work weighted towards heavy civil engineering, and it operates today under the motto of Disaster Protection Tobishima, a positioning that reflects both its technical specialisation and the seismic realities of the country it works in.</p>
<h2>Landmark Projects</h2>
<p>Tobishima has contributed to several of Japan's most technically demanding infrastructure schemes:</p>
<ul>
<li><strong>Seikan Tunnel</strong> - the undersea railway tunnel connecting Honshu and Hokkaido</li>
<li><strong>Tokyo Bay Aqua-Line</strong> - the undersea expressway tunnel and bridge crossing Tokyo Bay</li>
<li><strong>Honshu-Shikoku Ohnaruto Bridge</strong> - a major long-span crossing linking two of Japan's main islands</li>
</ul>
<p>Projects of this kind sit at the outer edge of civil engineering practice, and participation in them is itself a form of qualification.</p>
<h2>Services</h2>
<h3>Civil Engineering</h3>
<ul>
<li>Highway and railway tunnels, including undersea and mountain tunnelling</li>
<li>Bridges and long-span crossings</li>
<li>Dams and hydroelectric facilities</li>
<li>Harbour and port infrastructure</li>
<li>Highways, roads and expressways</li>
<li>Water supply and treatment works</li>
</ul>
<h3>Building Construction</h3>
<ul>
<li>Hospitals and healthcare facilities</li>
<li>Stadiums and sports venues</li>
<li>Office and commercial buildings</li>
<li>Educational and public buildings</li>
</ul>
<h3>Professional Services</h3>
<ul>
<li>Research and technical development</li>
<li>Survey and site investigation</li>
<li>Planning and design</li>
<li>Construction supervision and project management</li>
<li>Real estate development</li>
</ul>
<h2>Seismic and Disaster-Resilience Technology</h2>
<p>Tobishima invests significantly in earthquake-safe construction technology. In a country where seismic performance governs structural design far more than in most markets, that specialisation is a core commercial capability rather than a research sideline - and it carries over directly into the firm's work on infrastructure intended to remain functional after a major event.</p>
<h2>Construction Technology and Digitalisation</h2>
<p>The company has been active in modernising site operations, applying digital and automation technologies to construction processes - part of a broader Japanese industry response to an ageing workforce and persistent labour shortages, where productivity gains must come from method rather than headcount.</p>
<h2>International Operations</h2>
<p>Beyond Japan, Tobishima has a long record of infrastructure work across Southeast and South Asia, delivering water supply systems, roads, ports, railways and buildings. Much of this work supports social infrastructure development in partnership with international development programmes.</p>
<h2>Market Position</h2>
<p>Tobishima occupies a distinctive position in the Japanese construction market: smaller than the five largest general contractors, but with a technical reputation in tunnelling, marine works and disaster resilience that places it on the shortlist for projects where those capabilities decide the outcome.</p>
<h2>Working With Tobishima</h2>
<p>Clients include national and prefectural government agencies, transport and port authorities, utilities, healthcare providers and private developers, alongside international agencies funding infrastructure across Asia.</p>
<h2>Group Structure</h2>
<p>The business operates as the Tobishima Group, combining construction contracting with related activities in real estate development, technical research and engineering services. This structure lets the company carry a project from initial survey and planning through design, supervision and construction rather than entering only at the build stage.</p>
<h2>Why Tobishima Matters to AEC Professionals</h2>
<p>For engineers and contractors studying tunnelling method, marine construction or seismic design, Tobishima's project record is a useful reference point. Japanese practice in these areas developed under unusually demanding geological and seismic conditions, and the techniques proven on schemes such as the Seikan Tunnel and the Tokyo Bay Aqua-Line have influenced heavy civil engineering well beyond Japan.</p>

Tobishima Corporation is a Tokyo general contractor since 1883, building tunnels, bridges, dams, ports and buildings with seismic and disaster-resilience expert

Tobishima Corporation | Japanese Construction Firm

Tobishima Corporation

Tobishima Corporation is a Tokyo-based general contractor founded in 1883, delivering tunnels, bridges, dams, ports and buildings in Japan and Asia, with deep expertise in seismic engineering and disaster-resilient infrastructure.

<h2>Company Overview</h2>
<p>Taisei Corporation is one of Japan's leading general contractors, incorporated in December 1917 and headquartered at 1-25-1 Nishi-Shinjuku in Tokyo. The company employs approximately 9,500 people and operates through a national network of branches covering Sapporo, Sendai, Saitama, Chiba, Tokyo, Yokohama, Niigata, Nagoya, Osaka, Kobe, Kyoto, Hiroshima, Takamatsu and Fukuoka, alongside a dedicated International Operations Headquarters.</p>
<h2>Core Business Areas</h2>
<h3>Building Construction</h3>
<p>Taisei designs and builds offices, hotels, hospitals, cultural facilities, industrial plants and residential developments. Projects such as The Okura Tokyo illustrate the standard of work at the top of the Japanese market, where craftsmanship expectations and seismic requirements are both exceptionally demanding.</p>
<h3>Civil Engineering</h3>
<p>A separate Tokyo Civil Engineering Branch reflects how substantial this side of the business is. Work covers tunnels, bridges, dams, ports, railways and urban infrastructure - including projects such as the Tokyo Umi no Mori Tunnel.</p>
<h3>Real Estate Development</h3>
<p>The company develops and invests in property in its own right, giving it exposure to asset performance rather than construction margin alone.</p>
<h3>Engineering and Group Services</h3>
<p>Taisei Group companies extend the business into specialist engineering, facility management and related services across the asset lifecycle.</p>
<h2>Technology and Research</h2>
<p>The Taisei Advanced Center of Technology gives the company a substantial in-house research capability - a defining feature of the major Japanese contractors, which invest in R&amp;D at a level uncommon among Western builders. Its best-known output is T-eConcrete with Carbon-Recycling, a carbon-recycled concrete developed to cut the embodied emissions of one of the most carbon-intensive materials in construction. Related initiatives include the CDE3 Company concept and its New Normal Architecture programme.</p>
<h2>Overseas Operations</h2>
<p>Taisei has a long record of international work delivered through its International Operations Headquarters and overseas network, spanning infrastructure and building projects across Asia and beyond. That history gives the firm experience of financing structures, joint ventures and local partnerships well outside the Japanese domestic model.</p>
<h2>Strategy: TAISEI VISION 2030</h2>
<p>The company's direction is set by TAISEI VISION 2030 and its associated Medium-Term Business Plan for 2024 to 2026, which frame targets around business performance, sustainability and technology adoption. Its stated theme - comfortable connections creating new lifestyles - reflects a shift from delivering buildings toward shaping how places are used.</p>
<h2>Sustainability and Governance</h2>
<p>Sustainability is organised around environmental, social and governance pillars, with decarbonisation of materials and construction processes as a central technical challenge. Corporate governance, disclosure and integrated reporting are handled to the standard expected of a listed Japanese company.</p>
<h2>Market Position</h2>
<p>Taisei sits among the largest general contractors in Japan, competing directly with the other major national builders. Its combination of building construction, civil engineering, development and deep in-house research is a structural advantage that few contractors anywhere can match.</p>
<h2>Why AEC Teams Should Know Taisei</h2>
<p>For anyone tracking low-carbon concrete, seismic design or contractor-led research and development, Taisei is one of the most important companies to follow in the global built environment.</p>

Taisei Corporation is a leading Japanese general contractor delivering building construction, civil engineering, development and low-carbon concrete technology 

Taisei Corporation | Japanese General Contractor

Taisei Corporation

Taisei Corporation is a leading Japanese general contractor delivering building construction, civil engineering, real estate development and engineering services in Japan and overseas, with strong research capability in low-carbon concrete and advanced construction technology.

Tobishima Corporation had to reorganize management resources to deal with rising IT costs due to BIM implementation. After evaluating various CAD products, considering cost, operability, installations by other companies in the same industry, and potential, Tobishima switched from its existing 2D CAD to a different, but highly compatible solution: ARES CAD software.

Mr. Aihara (left), Chief of Construction Concierge Office; Mr. Mizukoshi (center), Manager of Civil Engineering Division; and Mr. Ozawa (right), Manager of Information System Division.

Tobishima Corporation Migrates 1,600 Computers to ARES CAD Software

Graebert‘s product portfolio is anchored by the ARES Trinity of CAD software — a powerful suite of DWG-based CAD software for desktop (ARES Commander), mobile (ARES Touch) and cloud (ARES Kudo). 

<p>ARES is a modern, feature-rich CAD software that serves as a leading AutoCAD alternative for professionals working with 2D drafting and 3D modeling in the industry-standard DWG file format. Developed by Graebert, ARES combines power, flexibility, and affordability&mdash;making it an ideal solution for architects, engineers, designers, and construction professionals seeking a more cost-effective, high-performance CAD platform.<br><br>With a growing global footprint, ARES is trusted by some of the world&rsquo;s most prominent companies. Among its users are three of Japan&rsquo;s top five construction groups, as well as globally recognized manufacturers such as LG, Hyundai, and Samsung. Its robust feature set supports the complex demands of design, engineering, and construction workflows, offering seamless collaboration and precision.<br><br>ARES also serves as the underlying technology for other leading CAD solutions. It powers DraftSight by Dassault Syst&egrave;mes, a popular CAD software for 2D design, and Onshape Drawings, the drawing module within the cloud-native Onshape CAD platform. These partnerships highlight ARES&rsquo;s reliability, scalability, and integration capabilities across different design environments.<br><br>As a truly cross-platform CAD solution, ARES is available on Windows, macOS, and Linux, with additional cloud and mobile access through ARES Kudo (web-based) and ARES Touch (mobile app). This ensures design professionals can work seamlessly across devices and locations, with real-time syncing and collaboration tools.<br><br>With its DWG compatibility, modern interface, and flexible subscription-based licensing model, ARES offers a compelling alternative to traditional CAD tools&mdash;without sacrificing performance or productivity. Whether you're migrating from AutoCAD or starting fresh with a new CAD workflow, ARES delivers the tools you need to design faster, collaborate smarter, and lower your total cost of ownership.<br><br>Discover why ARES is the next-generation DWG CAD software for today&rsquo;s professionals.<br><br>DWG Compatibility:<br>ARES Commander works directly with DWG files, making it a good option for users familiar with other CAD software that uses this format. <br><br>Part of the ARES Trinity:<br>ARES Commander is the desktop component of Graebert's Trinity, which also includes cloud-based ARES Kudo and mobile ARES Touch. This allows for seamless workflows across devices. <br><br>Productivity Features:<br>ARES Commander includes features like Power Trim, Dimension Palette, and Layer Tools, designed to enhance user productivity. <br><br>Customization:<br>Users can customize their workspaces and user interfaces to suit their preferences. <br><br>Collaboration:<br>The ARES Trinity enables collaboration features, allowing users to share, view, and edit drawings across different platforms and devices. <br><br>Cloud Integration:<br>ARES Commander integrates with popular cloud storage services like Box, Dropbox, Google Drive, and iCloud. <br><br>BIM Features:<br>ARES Commander also includes BIM (Building Information Modeling) features, allowing users to import and view Revit and IFC files, extract 2D drawings, and extract BIM information into tables. <br><br>Licensing:<br>ARES Commander offers perpetual, annual, or flex licenses, and a single license can be used across multiple computers with different operating systems.</p>

Modern workflows leveraging cloud and mobile to synchronize the work across all your users and devices.

CAD Anywhere: Desktop CAD (Windows, Mac, Linux), Cloud CAD (runs in your Internet browser), and Mobile CAD (Android tablets/smartphones and iOS iPhone/iPad).

With the DWG for BIM features in ARES Commander, users can create smarter CAD drawings whose geometry can be extracted and updated from Revit and IFC BIM projects.

ARES Commander - Desktop CAD: All the 2D and 3D features needed to create and modify DWG drawings on Windows, macOS, and Linux.

ARES Kudo - Online CAD: Create and modify DWG drawings online, and enjoy new collaboration features to comment with voice, photos, text notes, and stamps.

ARES Touch - Mobile CAD: A full set of 2D features to create, modify, and annotate DWG drawings on your Android smartphone/tablet and iOS iPhone/iPad with unique collaboration features to markup with voice, photos, text notes, and stamps.

ARES Trinity by Graebert

The ARES Trinity of CAD software encompasses three integrated software products: ARES Commander, ARES Kudo, and ARES Touch.

Featuring Graebert ARES CAD software at the AEC Innovate Conference

8600 AutoCAD users migrated to ARES CAD Software at Takenaka in Japan

Featuring Graebert at the AEC Innovate Conference

TAISEI Corporation is one of the “Big 5” construction groups in Japan, with 8,572 employees as of March 2021. Technical drawings are required on construction sites, and a company as big as TAISEI uses more than most. Such drawings are created at the office by the design teams, and keep evolving during the project. Construction workers depend on a constant flow of drawings because they need to keep up with frequent design updates. In addition, they need a way to share feedback from the field with the design teams — which is ideally done within the drawings themselves. Centralizing files in the cloud enables users to circulate drawing updates in real time. But in TAISEI’s case, the challenge is also to deploy a Mobile CAD solution to the thousands of iPads used in the field, without compromising on productivity and security.

TAISEI Corporation Deploys ARES Touch Mobile CAD On 4,000+ iPads

ARES Touch is a full-featured mobile CAD app that provides a complete set of 2D drafting and annotation commands. It's the perfect companion to quickly review a drawing shared in the cloud or received by email while on the go.

Team members at the jobsite can collaborate efficiently with colleagues back at the office

ARES Touch helps users work more effectively while on the jobsite or  in the field

ARES Touch works on Android and iOS tablets and smartphones

The ARES Trinity of CAD Software: Create and Modify DWG Files with Modern Collaboration Tools

ARES CAD Software: Top 10 Trinity Features Outperforming AutoCAD | Expert Review by Architosh

DWG Editing on Mobile: ARES Touch Makes it Quick & Easy!

ARES Touch: Mobile CAD for Android and iOS to View, Create and Annotate DWG

Mobile CAD solution for viewing and editing DWG files on iOS and Android smartphones and tablets

ARES Touch

Work productively on mobile devices with tools tailored to smaller screens

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Tobishima Corporation

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