An easier way of thinking about this question is to flip it: What can I offer this company that would make them want to hire me?
You need to show that: (1) you're familiar with the company (and not just skimming the website) e.g. their products, ethos, market, rivals, strengths, weaknesses, aims, etc; (2) your skills, experiences and successes in previous roles meet the person spec; (3) your values align with those of the company (i.e. you're a good fit); (4) and the extra value you're bringing that makes you stand out from the others; and (5) if there's anything specific that attracts you to them (e.g. product they developed that you really liked, their reputation within the industry, etc).
You don't have to discuss all of the above, but you should cover as many as possible. It's simply not enough to waffle praise about the company because they can see through it. The aim is to show them you're the best fit candidate. And try not to focus too much on the bigger ambitions you have as they won't like being seen as a stepping stone!
Anyway, this is usually the opening, ice breaker question. So smile a lot, make sure you address each interviewer (and not just the one asking the question), and appear to be excited!