Is there any careers in the field of wilderness survival? other than our own business in it? If so where can we get them?

I think so yes. But if you do this as a business, you can earn a lot also teaching the members how to do things for the survival.

Safari guide is a career in field of wilderness survival,isn't it?

I don't think there are much of jobs available in this field. From what I know you can be a tour guide in wilderness trips or you can try to be apply for the post of forest official in your state.

There are youth programs that teach survival skills.

One was called "Outward Bound" but I haven't heard anything about it in years, so I don't know if it is still active.

If you are looking for survival work and can teach, you might offer classes through a sporting goods stores or colleges in you area.

The first question to ask is
what are your qualifications?
what is your experience level?
are you qualified in first aid (Red Cross)
are you qualified in CPR (Red Cross)
What experience do you have teaching/instructoring?
what kind of leadershio experience do you have?
Expect to be asked these questions wether you are applying for a job or from prospective
students if you start your own business.

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Retired Navy SERE (Survival, Evasion, Resistance, Escape) Instructor
certified pistol, rifle, shotgun, home defense Instructor
NRA Life Member
Survival & Disaster Preparedness Instructor