Office Manager - Be the person who makes a 115-person workplace run brilliantly. EMPLOYMENT: Permanent, full-time
At Blackstone Energy Services, we help our clients manage their energy use and cut carbon emissions through energy performance contracting, decarbonization programs and clean infrastructure. Behind every project is a busy, growing team of about 115 people, and a head office that needs a capable, warm and highly organized office leader at its centre.
As our Office Manager, you’ll run head office day to day, from the front door to the boardrooms. You’ll be the first face our clients see, a trusted source of support for our President and CEO, and the go-to person our employees rely on to get things done. the next you’re booking group travel or helping plan a client event. Roughly half your time goes to office operations, with the rest split across executive support, travel and events, and employee experience.
Office Operations & Hospitality
Keep the office professional, presentable, organized and welcoming every day, including the details that matter, like a stocked kitchen, fresh coffee and a running dishwasher.
Manage inventory of kitchen supplies including beverages and snacks, cleaning and other office
Oversee company uniform inventory and branding requirements; Answer employees’ office questions in person and remotely, from locating supplies to printing and
Maintain office policies, procedures and administrative
Manage the booking schedule for two corporate suites and coordinate guest
Ensure phone auto-attendant is maintained and
Facilities, Health & Safety
Act as the main contact with building management for maintenance, repairs and facility issues,



and share building notices with staff.
Administer the office security and access system, including cards and Ensure holiday schedules are maintained.
Champion office health and safety and serve as one of the office’s Fire
Serve as primary contact for office service providers and vendors; Manage your corporate credit card: submit receipts, code expenses in our expense software platform, and process and track office invoices.
Manage calendars and provide administrative support to 2 Executive Leaders: our President and our
Register leaders for conferences and events, and manage corporate memberships and related
Travel & Events
Book and manage individual and group travel including flights, hotels, ground transportation, itineraries and changes. Book meeting rooms, venues and restaurants for training sessions, off-sites and team gatherings, and arrange
Quarterly all-staff meetings and socials
Holiday and summer celebrations

Own onboarding logistics for new hires: workspace setup, access cards, welcome bag, uniforms ready before day one, and office orientation.
Help keep our office a clean, welcoming, inclusive place people want to come
3–5+ years of experience in office management, office administration or a similar





- Experience supporting senior executives, including calendar management and travel
- Strong Microsoft 365 skills (Outlook, Word, Excel, PowerPoint and Teams).

Post-secondary diploma or degree in business administration, office management or a related
Experience in an organization of 100+ employees (not all employees are on-site)
Facilities management and vendor coordination
Corporate event planning
Employees know who to ask about anything office-related — and they’re glad they
The office just Day-to-day operations run so smoothly that no one sees the effort behind them.
Events and travel land Meetings, trips and company events come together seamlessly.
Resources are well Vendor relationships are strong and office spending is under control.
People feel at New hires feel welcomed from day one, and engagement across the office is high.
Your work supports a team helping Canadian institutions cut energy costs and carbon emissions.
Work directly with our President, CEO and senior leadership.
Real authority to run the office and improve how things work.
Health & dental advantages, investment program, vacation, professional development, and a collaborative, rewarding culture.
Send us your resume and a few lines about an office you made run better.
Accommodations are available on request at every stage of the recruitment process, in accordance with the Ontario Human Rights Code and the AODA. Read our Corporate ESG report here .
Our recruitment process does not use artificial intelligence (AI) tools to support activities such as application screening and candidate assessment.

📌 Office Manager - Permanent Full-time (Toronto)
🏢 Blackstone Energy
📍 Toronto