SEI staff members include technical staff, support staff, resident affiliates, and visiting scientists. Resident affiliates are personnel from industry or government who come to the SEI as members of the technical staff, at their organizations’ expense, to work at the SEI for one to two years. Visiting scientists are temporary employees from industry, academia, or government. The following are SEI employment figures as of Sept. 30, 2002:

>	308 technical staff, including 73 visiting scientists
>	124 support staff
>	17 resident affiliates

SEI Affiliate Program

Through the Affiliate Program, sponsoring organizations contribute their best ideas and people to the SEI's ongoing effort to define superior software engineering practices. During the term of collaboration, affiliates lend their technical knowledge and experience to SEI teams investigating specific technology domains. As team members on SEI projects, affiliates collaborate with SEI staff to identify, develop, and demonstrate improved practices. The SEI has had a total of 176 affiliates to date. Affiliates' sponsoring organizations represent industry (76%), government (15%), and academia (9%).