Toronto · Available for Permanent, Interim & Fractional Mandates

Finance &
Operations
Leadership

CFO. General Manager. Corporate Director. I bring financial discipline and operational leadership to businesses at critical points of growth, transition, and performance.

Engaged in permanent, interim, fractional, and board roles.

Get in Touch LinkedIn
MS
Credentials
CPA (CMA) MBA · Schulich C.Dir Innovation Governance Certificate
Profile

Finance leader.
Operator.
Trusted director.

I work where finance and operations meet — where the real performance decisions get made. My experience spans large-scale environments, including $1B+ distribution and $500M country operations, as well as mid-market businesses where structure, control, and execution need to be built from the ground up.

I am equally comfortable closing the books, structuring a transaction, leading an SQF audit, or presenting to a board. I currently serve as Treasurer and Audit Committee Chair at Don Valley Community Legal Services and hold an advisory role at CITIZN Inc.

Clarity drives performance.

20+
Years Leading in CFO & GM Roles
CFO, GM, Founder, Corporate Director
$1B+
Revenue Scale Managed
Core-Mark International, Securitas Canada
75+
Teams Built & Led
Multi-site, union and non-union
19→5
Close Cycle Improvement
Built financial infrastructure from zero
Areas of Expertise

What I bring
to the table

Where I Create Value

  • Strengthen financial control and reporting discipline
  • Drive profitability, cash flow, and operating performance
  • Support growth, ownership transition, and strategic execution
  • Build finance functions in under-structured environments

Operating Capability

  • CFO and GM leadership across multi-site businesses
  • Integration of finance, operations, and strategy
  • Hands-on execution in lean and complex environments
  • M&A, ownership transitions, and investor readiness

Governance

  • Board and audit committee leadership
  • Risk, compliance, and financial oversight
  • C.Dir designation — Directors College
Engagement Model

How I work
with organizations.

I work across a range of mandates depending on the needs of the business:

  • Permanent executive leadership
  • Interim and fractional CFO / GM roles
  • Advisory and board engagements

Engagements are structured around immediate impact, clarity, and execution.

Contact

Let's connect.

Available for senior leadership mandates across finance and operations — permanent, interim, fractional, and board roles across commercial and nonprofit sectors.

martin@martinsonne.com linkedin.com/in/martinsonne

Greater Toronto Area · Available Nationally