What is your concept? Who or what are we photographing, at what sort of locations? Are there different categories, hierarchy of importance ?
Who are all the decision makers? Is there a design firm or agency involved? Who is going to be photographed? Who do we need to get special permissions from?
What is your brand feeling, concept, color palette, and target audience?
Who are your competitors. What is your history? Do you have a website?
Will you be posting them on your website, social media, advertising print campaign, brochures/ print collateral, trade magazines, book publication.
How long do you plan on using these images?
When do the photos need to go to press? What is your budget range you would like to keep around?