1. Educational institutions: including higher education institutions, secondary education institutions and basic education institutions.
2. Scientific and technological institutions: including natural science research institutions and social science research institutions.
3. Cultural institutions: including performance institutions, artistic creation institutions, unit books and literary institutions, etc.
4. Health institutions: not only doctors and nurses working in hospitals, but also similar medical institutions, such as family planning service units and epidemic prevention stations.
5. Social welfare institutions: including foster care welfare institutions, rehabilitation institutions and funeral institutions.
6. Sports institutions: including sports competitive institutions, sports facilities and other sports institutions.
7. Transportation agencies: including highway maintenance supervision agencies and highway transportation management agencies.
8. Urban public institutions: including landscaping institutions and urban sanitation institutions.
9. Agriculture, forestry, animal husbandry, fishery and water conservancy institutions: including technology extension institutions, improved seed cultivation institutions and comprehensive service institutions.
10. Information consulting institutions: including consulting service centers (stations) of information centers and price information offices of computer application centers.
1 1. Intermediary service agencies: including technical consulting agencies and employment agencies (talent exchange).
12. Survey and design institutions: including survey institutions, design institutions and exploration institutions.
13, earthquake monitoring and prevention institution
14, maritime agency
15, environmental protection agency
16, inspection and testing organization
17, Intellectual Property Agency
18, logistics service organization
19, other classes
All the above are the business answers of the units.