Siena’s purpose is to support the development of healthy, vibrant communities which actively promote the well-being of their members and the community as a whole by ensuring support, inclusion and learning for everyone.

Siena’s core values are:

• respect for each other, our clients, our associates and our community;
• trust in each other, our clients, our associates and our community;
• collaboration with each other and with the social profit, public and private sectors;
• sustainability in how we approach our relationships with our stakeholders, in how we impact our environment, and in ensuring our operational viability;
• innovation in how we approach the work we do with each of our clients.

In a report titled Reclaiming Our Humanity, Sherri Torjman, vice-president of the Caledon Institute of Social Policy, identifies a vibrant community as one that:

• Provides support that meets the basic needs of all members.
• Promotes inclusion to enable all members to participate actively in social, economic, cultural and political life.
• Promotes opportunities for the lifelong acquisition of knowledge and skills by all members.