Pacesetter (noun)

A person or thing that sets the pace for others; a leader, innovator, or trailblazer.

Origin:

Mid 19th century, from pace + setter.

Examples:

1. The company is a pacesetter in the field of sustainable energy.
2. He is a pacesetter in the marathon and often sets the pace for the other runners.
3. She is a pacesetter in the fashion industry and sets the trends for the season.
4. The car is a pacesetter in the sports car market.
5. The politician is a pacesetter in the field of social reform.