Charles River, Xenogen and XenogenBio wish to enter into a business arrangement that will enable them to work together to market and sell the Creation Services. Final billing under THIS CONTRACT shall be submitted in a timely manner but not later than three (3) months after completion of the SERVICES.All plan names included but not limited to: Access Plans, Aetna Dental Access, Affordable Family. A services agreement is used to document a transaction where the seller provides a service to the buyer. A marketing and promotion agreement is a contract between a marketing agency and client where the latter procures the former's services under certain terms. Use our marketing contract template to formalize the marketing arrangement between a digital agency and a business. Draft your contract with ease! Sample marketing contract template detailing services for marketing campaigns. Sample Professional Services Contracts. Contact: Anne Watros .