2. Offices of other health practitioners
Offices of other health practitioners rank 2nd in our list of most profitable small businesses. They normally comprise all independent health practitioners except for physicians and dentists. That means the industry belongs to chiropractors, optometrists, mental health practitioners, physical, occupational and speech therapists, and audiologists and podiatrists. According to Data USA, the most popular occupations are psychologists, speech-language pathologists and health diagnosing and treating practitioners.

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