Versatile Solution for Any Structure


Trusted leader in 3D analysis and multi-material design
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The Essential Tool for Multi-Story Buildings


Model, Load, Analyze and Design Multi-Story buildings with ease.
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Steel Connection Design Made Easy


Full 3D visualization, design and reporting for steel connections.
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Fully Integrated Design for Concrete Buildings


The right choice for analysis and design of multi-story concrete structures.
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Say Hello to RISACalc

The all-new RISACalc brings the power and flexibility of RISA-3D to the cloud, allowing engineers to create, load and design individual components using a variety of materials, all in an intuitive, web-based interface.

RISACalc New Interface


As a market leader, RISA has been developing structural analysis and design software for over 30 years, providing engineers with tools that are capable of solving any design challenge.

Model Creation Simplified

With structures getting more complex, RISA continues to promote a separation of tasks in order to streamline the modeling process, providing tools that cater to exactly what needs to be created.

Fully Integrated Workflow

Leverage geometry, loading, design information and results from one RISA software to another in order to save time, avoid mistakes and maximize design coordination.

Unparalleled Technical Support

Have a question? Our support team is staffed with professional engineers who are ready to help. Our goal is to equip you with the tools to be successful, while instilling confidence in our software.

For Engineers, by Engineers

Developed by structural engineers for more than 30 years, our vast industry experience gives us a unique perspective on how to deliver quality software that will enhance the workflows of our customers.

Flexible Cloud-Based Licensing

RISA's cloud-based subscription licensing offers customers a flexible system that requires no physical hardware and only an occasional internet connection, all for a fixed annual cost.

BIM Beyond Architecture

Interoperability isn’t just for architects anymore. RISA gives engineers the ability to exchange model information with engineers, architects, connection designers and steel detailers through direct links and other open formats.

See What’s Happening at RISA

Jan 13, 2022 | News
RISA Gives - Giving Back in 2021

It is an honor to give back to those less fortunate, join us as we loo...
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Dec 21, 2021 | Tips & Tricks
Why does my slab deflection increase using ACI 318-19?

Recent changes to the ACI 318-19 code provide an updated calculation f...
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Dec 17, 2021 | Tips & Tricks
Smart Tools for Tendon Entry and Modification in ADAPT-Builder

ADAPT-Builder v21 now includes new Smart Tools for tendon modeling tha...
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Dec 17, 2021 | Tips & Tricks
Automatic Calculation of Long-Term Load Factors in ADAPT-Builder

ADAPT-Builder v21 now includes the option to have the program automati...
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