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The Hydrographic Society of America (THSOA) is a 501(c)3 non-profit organization committed to promoting education in offshore survey, positioning and mapping, including hydrography and related earth sciences.                                                   LEARN MORE

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member benefits

  Discounts at local THSOA sponsored events

  One year subscription to xyHt & Hydro International Magazine.

  Corporate members receive discounts at THSOA conferences and free employment opportunity advertisements.

Upcoming events

Scholarship information

THSOA National, the Houston Chapter & Southeast Chapter are each offering scholarships to full-time students seeking a two-year, 4-year or graduate degree in Hydrographic Surveying or other related fields. Nine scholarships will be awarded this year.

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