As per The International Coach Federation (ICF):

Definition... "Coaching is partnering with clients in a thought-provoking and creative process that inspires them to maximize their personal and professional potential."

Role... "Professional coaches provide an ongoing partnership designed to help clients produce fulfilling results in their personal and professional lives. Coaches help people improve their performances and enhance the quality of their lives."

Preparation and Core Beliefs..."Coaches are trained to listen, to observe and to customize their approach to individual client needs. They seek to elicit solutions and strategies from the client; they believe the client is naturally creative and resourceful. The coach's job is to provide support to enhance the skills, resources, and creativity that the client already has."

As per the Graduate School Alliance for Education in Coaching (GSAEC):

Executive & Organizational Coaching

A Working Definition: ...A development process that builds a leader’s capabilities to achieve professional and organizational goals.

The focus is on leaders who are in a position to make a significant contribution to the mission and purpose of their organization.

This form of coaching is conducted through one-on-one and group interactions; is driven by evidence, the inclusion of data from multiple perspectives, and is built on a solid foundation of mutual trust and respect.

The coach, the clients, and their organizations work in partnership to help achieve the agreed upon goals of the coaching engagement.