Hampshire Search and Rescue volunteers have responded to 1,100 callouts.
The organisation has been operating for over 20 years and searches for vulnerable missing people.
It was founded in 2003 and now has over 140 volunteers whilst relying on donations and fundraising to continue operating.
Police and Crime Commissioner Donna Jones said: "The Hampshire Search and Rescue volunteers are highly skilled experts who are on call all day every day of the year.
"They assist police officers across all types of terrain whether on land or in the many waterways throughout Hampshire.
"Time is of the essence in searching the area where the missing person was last seen or they may be located."
Search manager and vice chair Trevor Vidler said: "Like all the Search and Rescue teams, we wish we didn’t need to be called because it means someone is in trouble and a family is traumatised.
"But when there is a need we step up willingly and we will continue to do so.
"Reaching this number of callouts allows us to reflect on those we have tried to help over the years as well as the team members both now and throughout the years who have all contributed to being part of this vital voluntary service."
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