Constantin and Yana Kurmantsev have two daughters Alyona and Anastacia. They have been full time missionaries since 1999.

Constantin is the national operations leader for CRU (Campus Crusades for Christ International – New Life Russia) in Saint Petersburg, but he also does campus and church planting. He has worked as campus ministry coordinator and impact ministry leader for CRU, also.

Yana is currently working as the national LD/HR manager for CRU. She also works with teens in a program called Connect.

They are longtime friends of Bill and Sue Stech who attend NewLife.