ENR Texas & Louisiana has extended its Top Design Firms deadline to April 6, providing firms based or operating in Texas and Louisiana an additional 10 days to submit forms for the annual listing, which ranks the region's largest architecture and engineering firms in accordance with their revenues for 2014.

The listing will be published in the June 15 edition of ENR Texas & Louisiana.

In addition to highlighting the performance of individual firms, the listing provides a collective snapshot of design activity in Texas and Louisiana. It also serves as the basis for selecting ENR Texas & Louisiana's Design Firm of the Year.

Firms are selected on the basis of their financial performance, as well as their execution of key projects in the region. Previous honorees include Burns & McDonnell, Zachry Holdings Inc. and HDR.

To access the survey form, click here.

And for a glance at the Top Design firms of 2013, click here.