The snapADDY Grabber can help you to search well-directed for people working in special fields.
For your individual search you can create your own Filters.
1. Please click on "search contact person".
2. Here you can choose "Show advanced search and Filter".
3. Now you can create the parameters for your search, for example CEO of a software company.
4. Please click on "Save as filter" afterwards.
5. Name the filter an then click on "Start search" please.
You can use this filter again and again and if necessary you can fill in new parameters.