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To Reach Us

Big Brothers Big Sisters of Toronto

501 – 2345 Yonge St Toronto ON Canada M4P 2E5

Email: infotoronto@bigbrothersbigsisters.ca

Telephone: (416) 925-8981

Contact us

For Enrolment Questions:

enrolment.to@bigbrothersbigsisters.ca

Fax: (416) 925-4671

Mid-Scarborough Hub: 2660 Eglinton Ave E Scarborough, ON M1K 2S3

Copyrights

©2026, Big Brothers Big Sisters of Toronto

Charitable Business Number: 106793771RR0001

Progress Pride Flag

We recognize the importance of language, and its impact on inclusivity and identity erasure. We acknowledge how our organizational name re-enforces the gender binary and fails to honour Trans, non-binary and gender diverse identities and we are actively advocating for change. We welcome mentors and mentees who are 2SLGBTQIA+, and we are proud to have 2SLGBTQIA+ staff leading our ! AM initiative – developing intentional and inclusive programs for mentees and mentors of the community

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©2026, Big Brothers Big Sisters of Toronto

Siobhan Calderbank's Bio

Siobhan Calderbank is an award-winning keynote speaker, leadership strategist, and Talent & Human Resources Executive with more than 20 years of experience transforming organizations, building inclusive cultures, and developing diverse leadership pipelines. Currently serving as Vice President, Talent & Performance Management at Element Fleet Management, she is recognized for leading large-scale organizational transformation, advancing talent and leadership strategies, and helping organizations build high-performing, future-ready teams.

Recognizing the need for greater access to mentorship and leadership development, Siobhan is dedicated to empowering women and youth, particularly those from underrepresented communities, through coaching, career development, networking, financial aid, and leadership-building opportunities. Her commitment to creating pathways for others to succeed is reflected in her extensive mentorship, community leadership, and advocacy efforts focused on supporting youth, women, newcomers, and emerging leaders.

As a globally recognized speaker, Siobhan has inspired audiences from more than 70 countries through conferences, corporate events, and leadership forums. She is a published author and contributor featured alongside influential thought leaders including Oprah Winfrey, Maya Angelou, John Lewis, and Deepak Chopra. Her thought leadership on leadership, change management, inclusion, and talent development has been featured across numerous publications and media platforms. Her voice has been featured on ABC, CBS, NBC, FOX, and CW, and she has appeared on Reuters and Nasdaq billboards in Times Square, as well as Planet Hollywood in Las Vegas.

Siobhan has held several leadership and advisory roles supporting diversity, inclusion, mentorship, and community development initiatives. Her contributions have been recognized through numerous honours, including being named one of the Top 100 Accomplished Black Canadian Women, receiving the Women of Inspiration Award for Diversity and Inclusiveness, and being recognized as one of the Top 100 Black Women to Watch in Canada.

She holds a Master of Arts in Leadership from Royal Roads University, a Certificate in Advanced Human Resources from Queen’s University, and a Bachelor of Commerce in Information Technology Management from Toronto Metropolitan University. Through her professional leadership and community service, Siobhan remains committed to helping individuals realize their potential and creating opportunities that enable future generations to thrive.