Join the ODA

There are several membership levels designed to address the needs of members. It is possible to move from one membership level to another at any time.

Non-Commercial Members

Can access the ODA Member Area to download Teigha but are not allowed to distribute their solutions outside their organization except for freeware. Support is available through the support forum. Two-year time limit.


Commercial Members

Have all the benefits of Non-Commercial Members but can also distribute a maximum of 100 copies per year of their Teigha-based solutions.

Read more »

Sustaining Members

Have all benefits as Non-Commercial Members and can distribute an unlimited number of their Teigha-based solutions each year. They receive development support via e-mail.

Read more »

Founding Members

Have the same benefits as Sustaining Members, have access to the Teigha source code and can be involved in the management of the ODA. Founding Members have direct support from the ODA Development Team.

Read more »

Corporate Members - New!

Have the same benefits as Founding Members, plus the ability to license Teigha for use in additional Business Segments and Affiliates with consistent rights among all entities.

Read more »


The ODA wants to stimulate and support students doing research on engineering applications. 

Read more »

Membership levels accommodate varied requirements and different levels of participation. As a member’s business evolves, membership levels can be modified.