What are you doing to promote yourself. Do you know what they have done.
One does not necessarily need a website if they actively knock on doors. It was not too long ago that websites didn't exist and the requirement for photography still did. I wouldn't advocate not having one but I suppose that it is possible (albeit much harder) to do without one.
Are you all after the same jobs. In this I mean do you all shoot say motor sports and is this the jobs that you are after. Is there style substantiative differently from yours that it may appeal to the purchaser more.
I don't want to sound negative but your post sounds a tad on the "How come they can go out and play and I can't". You have to be aware of your competition but there is no sense and in fact it is down right counter productive to focus on it too much. Worry about yourself that is the only thing that you can actually control.
If you were thinking about approaching whomever hired these other photographers be very careful how you word this. You don't want to go in and sound jealous. You want to go in and promote yourself. Position it that you would love to be able to do some work with them and what would you have to do to be able to be in that position. Do not sell your soul for the work.
It is entirely possible that this is price point driven. Do you all charge the same and do you know that for a fact. This could be yet another case of someone coming in and lowering the bar even farther. Do you really want to play this game, I for one, do not but that is my personal choice.
Do you have your ducks in a row for when you do get the call. Do you know what you are going to charge, do you have a presentable portfolio. Are you equipped, honestly, to handle the jobs.
Some places will only have so many photographers on a list to call on. If their needs are being met by those, they just don't expand the list. You could be a victim of the numbers game as well.
Your post is short of a few details but I hope that you get my point. It is not about them, it is about you and you are the only one that can change the situation. I've lost a number of jobs where I just wasn't prepared to lower my price, my choice. Alternately I worked damn hard to get work from the advertising agency that I now do most of their work. Pick your battle carefully and make sure they are what you want and worthwhile.