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Welcome to Triello Counselling Services

My name is Cassandra Tenneriello, I'm a Registered Psychotherapist and Canadian Certified Counsellor in Ontario. As a therapist, I walk alongside my clients on their therapeutic journey. My initial goal is to create a safe and compassionate environment for clients to begin their healing process. I believe that the therapeutic relationship is the foundation of therapy. From experience, all clients are unique and my priority is to mould my therapeutic approach to suit each individual's needs and goals by using an integrative model. I am passionate about helping individuals move forward in their personal lives by discovering the strengths they already possess and building on them to achieve self-sufficiency.


I have six years’ experience working with individuals of all ages who are faced with trauma, addiction, sexual assault, and intergenerational trauma. Also, supporting anxiety, depression, grief/loss, self-harm, self-esteem, struggles with identity and other obstacles that present themselves at any stage of life.


I had the opportunity to provide counselling services throughout the remote, isolated indigenous communities of the James and Hudson Bay region. My time in Northern Ontario allowed me to gain insight on the importance of the interconnection of our physical, emotional, spiritual and mental wellbeing. I am an Adjunct Therapist at the Centre for Treatment of Sexual Abuse and Childhood Trauma. I am an approved service provider with NIHB, IRS RHSP and Ottawa Victim Services. I speak English, French and Portuguese. I understand that it can be challenging to reach out for help, but the search is the first step towards healing. ​

Email to inquire about caseload availability!

I'm Cassandra!

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