Lean Expansion caters to organizations targeting rapid results. Based in Toronto, lean business consultant Leslie Barker works across North America. Backed by an MBA and profit and loss expertise in a broad range of industries, her portfolio includes Fortune 500 companies and other notable brands. With over 20 years of experience, Leslie deftly maps operations, working to understand individual challenges before coming up with solutions to improve customer experience, turnaround times, productivity, and profit.

Case Studies

Business Consulting Services

Customer Experience Consulting / CX Consultant

Increase value by focusing on critical touchpoints of your customer’s journey through actionable strategies to build a customer-focused culture.

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Policy Deployment

Align improvement activities with strategic objectives. Hoshin Kanri (policy deployment) is a method for creating and executing a simple, comprehensive plan to meet important goals on your timeline

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Kaizen Consulting

Create scalable solutions that will work now–and long into the future by dissecting your business model and challenging long-held assumptions

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Executive Coaching

Give team leaders the tools for success. Learn the principles of continuous improvement and collaboratively chart a course that leads to sustainable, competitive growth

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Proven Results

Recent Accomplishments

As a lean business consultant in Toronto, Leslie offers real results. Here are a few outcomes from clients in the software, utilities, and
healthcare industries:

Doubled company sales (215%) and improved product delivery (267%)

Designed comprehensive systems that staved off aggressive competitors and saved +$15 million of revenue in year one

Strengthened revenue streams (109.3%) and reduced staffing needs (96.7%) while improving employee engagement +12%

Leslie Barker, MBA + Principal

Consulting in Toronto, New York, & Chicago


Businesses are evolving. No longer run as a linear set of activities, they have become platforms that connect producers and consumers. As a business consultant, Leslie teams up with organizations to create systems for continuous and sustained improvement.

With a background in finance and a Masters of Business Administration, Leslie spent much of her career focused on manufacturing, either navigating internal transformations or consulting to expand the knowledge base of leadership teams. Early on, she learned the principles of TQM, which provided undeniable results. Leslie then experimented with Six Sigma and the Toyota Production System (Lean Thinking) before transitioning to Lean Start-up, Lean Digital, and the 4D process. Today, Leslie draws on all these, tailoring management systems for businesses that want to streamline waste and improve profitability.

Leslie launched Lean Expansion in 2009. As a lean consultant, she offers demonstrated experience in industries such as Aerospace Engineering, Consumer Manufacturing, Healthcare, Software Development, & Agriculture and has advanced global strategies for multibillion-dollar companies.

As an individual who understands the challenges of iterative learning, Leslie is skilled at making connections and collaborates with organizations looking to implement streamlined management systems.

Creating management systems for continuous and sustained improvement.

From the blog

Self-Reflection in Business Consulting: Necessary Steps for Strategic Planning in the New Year
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Boosting Productivity for Businesses
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An Expensive Way to Save Money: Reframing How Businesses Cut Costs Through Kaizen
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Bring out the best

in your company

Reach out to get in touch. I'm open to learning about challenges, opportunities, and discussing how lean thinking can increase profits or prepare your company for growth.

Phone: 416.528.7990

Email: leslie@leanexpansion.ca

Address: 1805 - 3230 Yonge St
Toronto, ON. M4N 3P6