Since a speech given at an awards ceremony is by definition a speech at special occasional, you are off to a good start.
Speaking at a special occasion lies within a genre known as epideictic oratory, of which ceremonial oratory is a major subdivision. The typical task of an awards speech is to function as an encomium, or speech praising the recipient of the award. The praise is not simply random or individual. The point of a speech of praise is to create a verbal picture of an ideal for others to emulate. Thus when you compose your speech, think not just of the specific achievements of the businesswoman, but the character traits and habits she displays that attendees, especially younger or less successful business women could learn from.