Company president and founder Daniel K. Steussy has been Opterra's principal engineer and lead investigator since its inception, bringing more than 40 years of experience in the earth sciences to the firm's clients. Opterra's client list extends to more than 300 entities, including a broad cross-section of construction-related law firms, land and property owners, and insurance companies.

Opterra answers clients' needs for effective geotechnical services by drawing upon an extensive subcontractor network of engineers, geologists, technicians, and laboratories throughout the Southwest. This team of professionals reports directly to Steussy, who is the manager and chief investigator of every Opterra project. Our clients have the advantage of being able to communicate directly and often with Steussy on all aspects of their projects. The size of construction defect cases Opterra handles ranges up to the largest and most complex encountered in litigation.

One of Opterra's greatest strengths is our reputation for accurately assessing complex geological and geotechnical conditions, and then communicating the results of our work in terms that lay people understand. In litigated cases and other projects requiring technical presentation, we present clear, vivid graphics designed to quickly communicate our messages to the intended audiences. Steussy has a time-tested reputation for clear and credible testimony in mediations, deposition, and trial.