New CEO Appointed

May 16th, 2019


Souder, Miller & Associates (SMA) is pleased to announce the appointment of Karl Tonander, P.G., P.E., to the role of chief executive officer (CEO). Tonander, previously a senior vice president, has worked at SMA for more than 25 years, having started with the organization in 1993 and establishing the Las Cruces office in 1995. He has been a member of the SMA board of directors and held positions as an environmental business line manager and chief operations officer for nearly 15 years combined.

Tonander is a past president of the New Mexico Chapter of the American Institute of Professional Geologists and a current appointee to the New Mexico Board of Licensure for Professional Engineers and Professional Surveyors, where he regularly leads sessions on professional ethics. He is an active participant with the National Council for Examination of Engineers and Surveyors, where he presently serves as the chair of the Law Enforcement committee. Tonander holds a B.S. in geological engineering and an M.S. in mineral engineering, both from the New Mexico Institute of Mining and Technology. He is a registered professional geologist in six states and a registered professional engineer in six states.

“SMA continues to represent the best aspects of our evolving industry by quickly integrating proven technology, reshaping the management structure to better service our clients and identifying innovative finance vehicles to make our clients’ projects a reality,” said Tonander. “Our success in delivering effective technical solutions to our communities and private clients is the direct result of the commitment of our employees."

Douglas W. Mize, Sr., P.E., SMA president, said he is excited about working with Tonander to move the company forward.

 “I have worked alongside Karl for almost 25 years, and this appointment is an exciting time for SMA’s continued advancement within the environmental, engineering, and surveying community,” said Mize. “Karl brings a talent and skill set that provides SMA the opportunity to advance the SMA culture; take care of the Client, the Employee, and the Business. I look forward to the opportunity to work alongside Karl and to further drive SMA’s opportunities and culture.”

SMA is a multi-disciplinary, employee-owned professional services firm dedicated to creating opportunities for its employees to make a positive impact in the personal and professional lives of clients and communities in the Mountain West. Together with our customers, we deliver innovating projects. Find more information at

Media Contact:

Chris Coon, Marketing Manager