The Russian website already allows users to research and compare more than two million offers in over 120,000 destinations.
The partnership means HotelsCombined’s portfolio will be boosted by the Travelmenu inventory.
HotelsCombined Russia market manager Youlia Yu said: “Our partnership with Travelmenu underlines our commitment towards providing the best hotel price comparison service to the growing Russian market.
“Travelmenu’s inventory will provide our Russian users with another well-recognised brand, to help them find the right hotel, particularly in the domestic markets.”
Travelmenu marketing director Olga Ivashina added: “It’s important to bear in mind that HotelsCombined is a true global leader in scale and scope, which combines hot offers from hundreds of different hotel chains, agencies and other accommodation partners.
“We were faced with a challenging brief – to meet the highest and most exacting international standards in everything we do in respect of the signed alliance agreement.
“HotelsCombined demands the highest possible standards from its partners. We are very proud that we have been able to secure the trust and confidence of such a significant player in the international travel and tourism marketplace and sign an alliance agreement with them.”