The CES is committed to developing and maintaining international partnerships. These partnerships aim to support the development and promotion of evaluation worldwide while bringing new ideas and energy to the CES itself.

Bilateral relationships

The CES has established joint membership agreements with other national and regional associations whereby members of one association can become full members of the other association at a reduced rate and enjoy all the benefits of such membership. Agreements are in place with the American Evaluation Association, the Australasian Evaluation Society, the Aotearoa New Zealand Evaluation Association, and the European Evaluation Society.

Other types of bilateral relationships are under consideration.

Multilateral relationships

The main international focus of the CES has been and remains in multilateral relations.

The Canadian Evaluation Society is a member of the Réseau francophone de l'évaluation whici aims to develop an active cooperation among French speaking VOPEs, to build a theoretical and technical corpus accessible in French, and to consolidate the supply of evaluations conducted and reported in French.

The CES is a founding member of the International Organisation for Cooperation in Evaluation (IOCE). The IOCE regroups national and regional Voluntary Organization for Professional Evaluation (VOPEs) in the Americas, Africa, Asia, Australasia, Europe and Commonwealth of Independent States, and the Middle East. It aims to increase public awareness of evaluation and to grow evaluation globally by supporting VOPEs in contributing to good governance, effective decision making, and strengthening the role of civil society. The IOCE contributes to building evaluation leadership and capacity; advances the exchange of evaluation theory and practice worldwide; addresses international challenges in evaluation; and assists the evaluation profession to take a more global approach to contributing to the identification and solution of world problems. The IOCE is committed to cultural diversity, inclusiveness, and bringing different evaluation traditions together in respect of that diversity.

In 2012, the IOCE joined with Unicef and UN Women to create a new international initiative called EvalPartners. Many fruits have grown out of this initiative and the CES played an important part in this effort. It is thanks to EvalParters that 2015 was declared the international year of evaluation; 2015 saw more than 80 events promoting evaluation for learning and for good governance contribute to a rejuvenated conversation on our profession. EvalPartners also promotes the centrality of evaluation in the implementation of the 2030 Sustainable Development Goals (SDGs). In 2015, EvalPartners created five networks which tackle the challenge of evaluation in specific settings and CES has nominated the following individuals as its representatives (calls for replacements will be issued via weekly newsletters as positions become vacant):

EvalPartners authored the EvalAgenda 2016-2020: a roadmap to stronger and more influential evaluation. The EvalAgenda comprises four pillars: (1) the enabling environment for evaluation, (2) institutional capacities, (3) individual capacities for evaluation, and (4) inter-linkages among these first three dimensions. It is used by several VOPEs, including the CES, in reflecting and planning their action. The CES has officially declared its support with the EvalAgenda.

CES members are involved in all aspects of these multilateral organizations and initiatives – in EvalSDGs, EvalGender+, EvalYouth, and EvalIndigenous, in maintaining the VOPE Toolkit, in the professionalization discussion, and in the management of the IOCE and of EvalPartners.