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CertainTech's areas of expertise by NAICS codes are given below.

541511 Software programming services, custom computer
Applications software programming services, custom computer WEB (i.e., internet) page design services, custom
541330 Environmental engineering services, Engineering consulting services
541620 Environmental consulting Services
541690 Hydrology consulting services
541512 Computer systems design services
518210 Data processing services (except payroll services, financial transition processing services)
541710 Research and Development in the Physical, Engineering, and Life Sciences
541370 Mapping (except geophysical) services,
Geographic information system (GIS) base mapping services,
Geospatial mapping services
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