Key skills your sales force needs in corporate sales include: 1. Communication Skills: To effectively convey your product's value proposition. 2. Listening Skills: To understand the needs and pain points of the client. 3. Negotiation Skills: To reach mutually beneficial agreements. 4. Relationship Building: To create and maintain strong relationships with clients. 5. Problem-Solving: To provide solutions that meet the client's needs. 6. Persistence: The sales cycle in B2B can be long, so resilience and persistence are crucial.