Hi Julia,
Welcome to SaleHoo! Yes, you may type in the company name and if it is listed at SaleHoo, it will come up in the search. Doba is not listed here, but we have a review about Doba published at this page Link hidden: Login to view
Dropship Direct is listed and you may view their supplier profile page at Link hidden: Login to view
To use and search in the directory please click on the Directory link you will see on the topmost part of the SaleHoo page. You will be led to a page with a Search box where you can type the product/keyword that you need suppliers for.
You can actually filter the suppliers search by order requirements (no minimum order to brackets of price order required) , by category and sub category, by location (drop down list of countries) and by type (dropshippers, wholesalers, manufacturers, liquidators). You can also choose to filter those who can ship internationally and/or does not requiring a Tax ID. :) To see these options, just below the green box for Search, you can click on 'More Options'. Set the filters you need and click on Search. :)
Hope this helps.:)