US EC RN looking to work overseas

Hello all-
I would like to first introduce myself and my situation (so you may get a better feeling of what I am looking for). My name is Nik and I am 28 y/o single male. I currently live in Lubbock Tx and work at our Level 1 trauma center in the EC. I have been employed with this company for 7 years in October- 4 years as a tech, 3 as an RN. I have my RN licence and EMT certification, plan on taking my CEN in November of this year. I have grown up my entire life in this hospital. I would now like to travel but for longer stents (greater than 13wks). I only have EC training and would like to stay in this area of medicine. Also, my only language is english.
I am looking for companies that cater to US nurses looking for other countries. UK, Ireland, Saudi/UAE, Australia, New Zealand, ect. So far I have found:

O'Grady Peyton
HCI International

If you could please help me with other companies I would greatly appreciate it. Also please include your opinion of these companies or others that you would recommend or not recommend. I am not looking into moving till after winter since I own my house and need to figure out what I am going to do with it.
Thank you all for your help!
Nik