"I am writing to thank Zenopa for their hard work in securing me with my new position. Zenopa first phoned me and asked questions as to what I was looking for such as type and size of company."
"Zenopa, you have done it again! By 'it' I mean you have supported my application to a great company where so far, I feel like I fit right in."
"I just wanted to say a huge thank you to all at Zenopa for all your support in finding me my last two positions."