Contract Research Organization provide a wide range of services to the pharmaceutical and biotechnology industries. These services include preclinical and clinical research, regulatory affairs, and marketing. Contract Research Organization also provide services to academic institutions and government agencies.

The services offered by Contract Research Organization vary depending on the size and scope of the organization. Smaller Contract Research Organization may only offer a few services, while larger CROs may offer a full range of services.

The most common services offered by CROs are preclinical and clinical research. Contract Research Organization conduct preclinical studies to assess the safety and efficacy of new drugs and biologics. These studies are typically conducted in laboratory animals. 

Contract Research Organization also conduct clinical studies to assess the safety and efficacy of new drugs and biologics in humans. Clinical studies are conducted in three phases: Phase I, II, and III.

CROs also offer regulatory affairs services. Regulatory affairs specialists work with government agencies to ensure that new drugs and biologics comply with all relevant regulations.

Contract Research Organization also offer marketing services. Marketing specialists develop marketing plans and promotional materials for new drugs and biologics.

CROs vary in size and scope. Some CROs are small and only offer a few services, while others are large and offer a full range of services.