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Developing high performance sonar systems requires a wide variety of talents that are not easy to assemble in a large company, let alone a small company. Extreme Sonar is committed to having the highest quality people working on each task, and therefor establishes teaming agreements with top companies in the industry, large and small, to make this a reality.

Donna L. Winters
General Manager

Donna L. Winters is the founder and General Manager of Extreme Sonar LLC. Her responsibilities include corporate direction, staffing, and handling of finances, including invoicing, contracts and subcontracts. Ms. Winters also serves as the FSO of Extreme Sonar LLC.

Ms. Winters recent experience includes being General Manager of Dynaspot Corporation since 2009, where she managed a workforce of up 28 high-level technical employees with cumulative sales of $25 million dollars. Ms. Winters responsibilities included hiring, invoicing, and keeping track of revenue, expenses, payroll, and quarterly tax forms in multiple states (NJ, NY, PA, LA, CO & FL). Ms. Winters has also been the FSO of Dynaspot since 2016.

Alan T. Sassler
Chief Scientist

Alan T. Sassler is the Chief Scientist at Extreme Sonar LLC. He is responsible for technical direction and product development. Mr. Sassler's current major projects at Extreme Sonar are the development of a wideband ultrasonic anti-biofouling system, and an active sonar for detecting nearby marine life which also incorporates multiple directional wideband receivers for detection of close in submerged contacts, including marine mammals, divers, swimmer delivery vehicles, and UUVs.

Mr. Sassler's prior experience includes stints as Director of Engineering at Advanced Acoustic Concepts, Chief Scientist at Analysis, Design & Diagnostics, Sonar Project Manager at Scientific Atlanta's Signal Processing Systems, Senior Project Engineer at Bendix Oceanics, and Principal Engineer at Gould Ocean Systems.

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