Research and innovation: Development of technologies and innovations is conducted under different themes: Crop improvement, agronomy, crop protection, post-harvest management, socio-economics, gender and marketing, natural resource management, mechanization, and agricultural engineering.

Seed Maintenance: Multiplication of early generation seed (pre-basic and basic seed) and certified seed of improved crop varieties for other stakeholders in the seed value chain. Also, TARI maintains seeds of different crop varieties for quality and purity.

Ethical clearance certificate: Offers clearance and monitors ethics to international and local institutions and individuals conducting agricultural research in mainland Tanzania.

Registration of agricultural research: Registration of institutions and individuals conducting agricultural research activities or projects in mainland Tanzania.

Training: Conduct different trainings for different agricultural stakeholders to improve food, nutrition, and income security and reduce drudgery. Training is mainly on Good Agronomic Practices, Post-harvest management, value addition, socio-economics, and gender mainstreaming.

Laboratory services: Conduct analysis of soil and plant samples for nutrient content, pest and disease identification and diagnosis, and DNA finger printing.

Consultancy: Technical and advisory services to individuals and institutions

Statistics: Collection, compilation, and analysis of agricultural research data