In-house (adjective)

1. Carried out or produced within an organization, especially a company.
2. Having a close relationship with or being controlled by a particular organization, especially a company.

Origin:

Late 20th century: from in- (as an intensifier) + house.

Examples:

1. The company decided to handle the project in-house rather than outsourcing it.
2. The company's in-house legal team handled the negotiations.
3. The in-house design team created the new logo.
4. The in-house software development team created the new app.
5. The in-house research and development team is working on the new product.