You will need to look in several places to see what's available for your company. Here are my tips:
Business Source Premier: search strategic planning in the SU field, and the company name in the CO field. To broaden results, search only on the company name or use the term strateg* without specifiying a field. Experiment with other terms (e.g., interviews, new products).
ABI/INFORM Complete: choose the DATA & REPORTS tab at the top of the screen. Then enter your company name in one box enter a term like "market segmentation" or "segment size" in the second box.