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Inside Computers and Structures β€” the structural engineering software company behind SAP2000 and ETABS

Computers and Structures, Inc. (CSI) develops structural and earthquake engineering software used by engineering firms worldwide, including SAP2000, ETABS, SAFE, CSiBridge and PERFORM-3D. The company was founded in 1975 and is based in Walnut Creek, California.

Updated September 25, 2026
1975
Founded
5
Core software packages
CA
Headquarters
About Computers and Structures

CSI builds analysis and design software for structural engineers

Computers and Structures, Inc. (CSI) is a structural and earthquake engineering software company. Its core packages are SAP2000 for general structural analysis and design, ETABS for buildings, SAFE for slabs and foundations, CSiBridge for bridges and PERFORM-3D for performance-based design.

CSI software has been used on major projects including the Burj Khalifa, Taipei 101 and One World Trade Center.

The company was founded in 1975 in Berkeley, California, and is now based in Walnut Creek, California. It is led by founder, president and CEO Ashraf Habibullah, S.E.

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IP 54.18.224.92 · London, UK · ✓ Resolved
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Acme Corp ✓ Verified
SaaS · 210 employees · Series B
Fit 92
Tech
Hubspot
Pages
Pricing · Docs
Intent
High
Products & Services

What Computers and Structures offers

CSI's structural and earthquake engineering software:

SAP2000 ETABS SAFE CSiBridge PERFORM-3D Structural analysis Earthquake engineering Performance-based design BIM interoperability
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FAQ

Frequently asked questions about Computers and Structures

What does Computers and Structures, Inc. do?add
Computers and Structures, Inc. (CSI) develops structural and earthquake engineering software, including SAP2000, ETABS, SAFE, CSiBridge and PERFORM-3D.
Where is CSI headquartered?add
CSI is based in Walnut Creek, California, United States.
When was Computers and Structures founded?add
CSI was founded in 1975 in Berkeley, California.
Who runs Computers and Structures?add
Ashraf Habibullah, S.E. is CSI's founder, president and CEO.
Which famous projects used CSI software?add
CSI software has been used on projects including the Burj Khalifa, Taipei 101 and One World Trade Center.

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Data and sources

Facts on this page are compiled from Computers and Structures's own website and public sources: www.csiamerica.com, en.wikipedia.org/wiki/Computers_and_Structures_(company). Last updated September 25, 2026. Are you part of the Computers and Structures team and want to update this profile? Contact us.