OTHON is a 2008 recipient of the Texas Partnership for Transportation Quality Award in the Partnering category for its partnering efforts on the IH 610 W/IH 10 W interchange reconstruction project in Houston, Texas.

OTHON is a 2007 Texas CEC Engineering Award recipient for its civil engineering services for the Texas Woman’s University Institute of Health Sciences in Houston, Texas.

OTHON was awarded the 2000-Outstanding M/WBE Professional Services Award by the City of Houston and also received 2003-Small Business Leadership Award for project management consulting services on the Houston’s METRORail project.

The Houston Business Journal has recognized OTHON in the following rankings:

• Top 25 Largest Civil/Structural Engineering Firms in 2004, 2005 and 2006
  
• Top 25 Largest Minority-Owned Businesses in 2004. 2005 and 2006
  
• Top 100 Small Business in 2005

Texas Construction Magazine has recognized OTHON as one of the top 100 Engineering Firms in Texas in 2005 and 2006.