Lean Expansion caters to large 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’ experience, Leslie deftly maps operations, working to understand individual challenges before coming up with solutions to improve productivity, cycle times, efficiency, and cost-effectiveness. 

Case Studies

Business Consulting Services

Customer Experience Consulting / CX Consultant

Increase value by focusing on strategic touchpoints of your customer’s journey and coming up with 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

By dissecting your business model, it’s possible to challenge assumptions and come up with creative, scalable solutions that will work now–and long into the future.

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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

Lean Business Consultant in Toronto


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

With a background in finance and a Master of Business Administration, Leslie spent much of her early career focused on manufacturing, either navigating internal transformations or consulting to expand the knowledge base of leadership teams. She 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, creating and tailoring management systems for organizations aiming to streamline waste and improve profitability.

Leslie launched Lean Expansion in 2009. As a lean business consultant, she offers proven results in industries such as Aerospace Engineering, Consumer Manufacturing, Healthcare, Software Development, & Agriculture, as well as considerable experience advancing global strategies for multibillion-dollar companies.

As a business consultant who understands the challenges of iterative learning, Leslie is skilled at making connections and collaborates with organizations looking to implement sophisticated yet streamlined management systems.

Creating management systems for continuous and sustained improvement.

From the blog

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Lean and Kaizen: Using AI to Achieve Continuous Improvement
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Kaizen Consulting in a Non-Kaizen World
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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