Thank you for all your patience and cooperation throughout this challenging work

An effective and enjoyable collaboration, hopefully we can work together again in the near future

We greatly appreciate your expediting completion despite the many other demands on your time and expertise

A genuine pleasure to work with you, we appreciate the dedication, professionalism and also patience from your side

We won the bid! Thanks for all your help and advice

Excellent work. Looking forward to executing the next steps with you and your team

Many thanks to you and your colleagues for this valuable work