http://www.airleakagetesting.co.uk/index.html also owns airleakagetesting.info and airtest.me, so they might be open to this..
But I'm not sure how many other companies in this niche would care about having a one-word .info. Since I think we should (usually) value domains based on the number of potential leads and the quality of the leads, not just on whether they are one word or searched a lot, I'd say this is worth reg fee until you get lucky.