Found contact details of the biggest agency in Ryazan!
Owners: Tatiana Yevgen’yevna (+7 910 575 7178) and Ludmila Anatol’yevna (+7 910 566 8241), general office no. +7 4912 202222, e-mail email@example.com. The site is СВАХА62.РФ (in Russian characters) OR http://xn--62-6kcai3g4a.xn--p1ai/. The two ladies themselves speak a bit of English and they usually have a translator present in their office.
See more about this agency elsewhere under Ryazan.