Yes. So look, the estimates we provide, Brendan, capture our view today of the things you had like how much we're going to have to invest in our teams and all that stuff. So we have -- we have a view of the contract, the longer the contract, the more conservative we tend to be on the view because we know that we're going to want to maintain the best workforce in this space in the world, et cetera, et cetera. So we have a series of assumptions around how we have to invest in our workforce.
We have a series of assumptions around where, for instance, deals include other people's IP, what those price rises are going to be. So all of that gets captured. And I'll point out that our -- what we would shorthand to the did versus bid, right, how did -- what did we actually get versus how we bid is very close to what we're showing in our data now for what's going in the backlog. So we're realizing, if you will, what we are assuming. That's one of the reasons we're so comfortable with sharing the data this way. It represents what we have been realizing. Now the big execution element is not really all the assumptions around how we're going to invest in our people and the skills they have to bring, et cetera, et cetera, et cetera, those are important, and we get those right.
We have to keep delivering, right? The 80-plus thousand Kyndryl out of the 80-plus thousands, 2/3 of us every day are delivering in front of customers. And we're really, really good at it. And that's why our customer SAT scores are so high, that's why customers love what we do for them, and that's quite frankly why they trust us.
So when we get comfortable with sharing what we put into the backlog, it's driven by the confidence that we're getting from that we're actually delivering those over time. And importantly, we just have to keep the organization executing on delivering every day, which is, again, what we've been good at and what, in fact, we've been getting better at and things like Bridge help us with that as well. So we're very comfortable that we can deliver the margins that we have, the assumptions are robust enough and well proven by now enough that we are delivering those and then we have opportunities, obviously, to keep getting even better at it by using Bridge and more customers.
As we said a couple of months ago, we had Bridge in about 500 customers. And by the end of the year, we'll have it in 1,000 customers. So the assumptions are robust. Our delivery is phenomenal. The future for us is even more robust with things like Bridge with our ways of working, et cetera, et cetera. So I think you should assume that we'll keep delivering the margins that we're putting in the backlog.