: Known for aggressive pricing, including options as low as $5.00 per shirt for large, budget-focused event orders.

These companies provide the shirts and the printing as a complete package:

: A well-established choice for organizations, offering transparent per-piece pricing that decreases with quantity and free professional artwork reviews.

: Offers up to 32% off for bulk orders starting at 25 units . They handle printing and worldwide shipping with no strict minimums.

: Specializes in fast turnarounds for bulk wholesale orders with an easy-to-use online design lab.

If you plan to print the shirts yourself using "paper" transfer methods (like heat transfer paper), these suppliers offer bulk blanks: Wholesale T Shirt Printing Paper(999+) - Alibaba.com