Hi there, I'm looking to do the same, I switched to Atlantic a couple of years ago not realising they are part of Southern Electric and have now received notification of their 10% price increase which I think is disgraceful. To add insult to injury I let someone in to read the meters not long ago and have just received a bill from them for Gas and Electricity for an extra £400. Honestly, we have been so careful with our fuel usage in the last year, turning everything off at the socket, unplugging kettle, microwave etc., and I just don't know what more we can do. I said to my husband I give up, it now just feels like a cruel joke! Anyway, sorry for ranting, I looked on Money Saving Expert and they have some good tools on there for getting an instant comparison. There was another company that would be £300 or so cheaper for me, but there was even a warning on the site to say that the company had received bad feedback and to do some research. All very useful! Good luck.