consultancy
/ˈkɒns.əl.tənt.i/Definitions
1. noun
The business or profession of providing expert advice or guidance, especially in a particular field.
“The company hired a consultancy to review their business strategy.”
2. noun
A company or organization that provides expert advice or services, especially in a particular field.
“The consultancy specialized in environmental sustainability and renewable energy.”
3. verb
To seek advice or guidance from a person or organization, especially in a particular field.
“The company decided to consultancy on the new project to ensure its success.”