In March 1991, a collaboration agreement with the town of Sommerda (Germany) was signed. By mutual agreement, the towns undertook to reinforce relations in all spheres, especially cultural, sporting, social and economic activities. In September 2010, the 20th anniversary of the cooperation agreement between Kėdainiai and Sommerda was solemnly celebrated in Germany.
www.soemmerda.de

In October 1991, a collaboration agreement with Svalöv Commune (Sweden) was signed. By this agreement, Svalov and Kėdainiai undertook to develop close links and exchanges in the spheres of administration, agriculture, commerce and industry, tourism, economics, culture, education, sports, health protection, preservation of the environment and organization of leisure.

In 1994, taking into consideration the eagerness of the inhabitants as well as trying to implement political, social, economic reforms and consolidate the statehood of countries, the municipalities of Kohtla Jarve (Estonia) and Kėdainiai signed a collaboration agreement. By this agreement the towns took an oath to develop friendly relations and disseminate the experience in social, humanitarian, agricultural, business, political, spiritual, and juridical spheres.

In 1996, a collaboration agreement with Kujawsko-Pomorskie Province (Poland) was signed. By this agreement the towns undertook to exchange information and achievements in the sphere of preserving the environment; develop links among cultural institutions and schools; exchange information concerning tourism, sports, agriculture and its production processing; and promote friendly relations.

In December 1998, an agreement on companionship and collaboration in the spheres of education, social and health protection, culture, arts, sports and leisure, economics as well as preserving the environment with the town of Brodnica (Poland) was signed.

In October 2002, a collaboration agreement with the town of Lobez (Poland) was signed. By this agreement both cities undertook to develop partnership in the spheres of economics and preserving the environment; disseminate the experience of municipality management; exchange information; and participate in important events.

In October 2007, a trilateral agreement on companionship and collaboration among the towns of Kėdainiai, Castelforte (Italy) and Zimnicea (Romania) was signed. The aims of the cooperation are a strong and long partnership, participing in future projects, ensuring the welfare of independent citizens in independent countries, and cherishing the history of the country.

In June 2009, under the Power of Attorney of the Kėdainiai District Council, Mayor Nijolė Naujokienė signed an agreement of collaboration with the town of Volkovysk (Belarus), which renewed the successful cooperation started more than two decades ago. Both districts are very similar, i.e. well-developed industry, expanding agriculture, a high ratio of students entering higher education institutions, a strong focus on sports, healthy way of living, health care, and social needs.