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We build leaders the business can measure.

With 25+ years advising Fortune 50 enterprises, mid-size companies, high-performing teams, and start-ups, we drive high-stakes transformation through ROI-based measurement and a globally certified coaching network.

The leadership development problem

If leadership changes, the numbers show it.


Most organizations invest heavily in leadership development, yet few can document that the behaviors actually shifted. We build programs where measurement is built into the work, connecting executive and leadership growth.

  • 77%

    of organizations report a significant leadership gap between what is needed and what actually exists.


    The gap is rarely hidden. The harder work is closing it before it becomes succession risk, retention loss, or stalled execution.

  • 10%

    of leaders are ready for the next role when it opens.


    Succession looks possible until the role is suddenly real. Then the organization learns whether the pipeline was ready or just named.

  • $24B

    spent annually on leadership development in the U.S.


    Organizations don't under-invest in their executives. They just stop reinforcing and measuring what is needed before the valuable behaviors become habits.

Every dollar invested in your executives should look like an operational advantage twelve months later.

See how we measure change

The Westwood approach

First we read the room.Then we design for it.


No off-the-shelf programs. Every engagement starts with what already works inside your organization — and is built to create more of it.

  1. 01

    We meet you in the moment

    We read the culture, the pressure, and the internal dynamics of the group in front of us. Before we design anything, we read the organization as it actually operates. The work is designed from there.

  2. 02

    Built for the engagement

    Nothing is recycled. Format, cadence, and content are designed for this engagement — your context, your constraints, your leaders — and keep adapting as the work reveals more.

  3. 03

    Action learning

    Leaders develop by leading. Instead of seminars, teams work on real business problems with real stakes — so new behaviors are practiced, tested, and proven before the engagement ends.

Ways to work with us

The right engagement follows from what we find in the room.


The goal is to build a custom track for your specific needs, ensuring that every behavior shift is documented and reinforced.

By the numbers

We work with the critical few to ignite the critical mass.

  • 55k+

    Leaders trained

  • 25+

    Years developing leaders

  • 20+

    Renowned facilitators

  • 15+

    Global partners

The measurement gap

Most leadership firms measure applause. We measure change.

See how we measure change

Our impact

When leadership changes, the business should be able to tell.

A team reviewing work pinned across a studio wall

Impact leadership

How a leading company operationalized leadership development to drive innovation at scale.

Read the case study

Who we are

Twenty-five years in the rooms where leadership gets tested.

Greg Zlevor, founder and president of Westwood International
The Westwood team together in the studio

Westwood was built around what Greg Zlevor has learned across three decades of building leadership programs inside Pfizer, GE, Intel, Volvo, Stryker, United Airlines, the Singapore Police Force, and dozens of others. The frameworks are not theoretical. They were refined inside boardrooms managing succession, inside organizations integrating acquired cultures, inside public institutions under political pressure, and inside executive teams that needed to decide before the situation was fully clear.

What leaders remember years later.

“Greg has been an incredible resource and sounding board as I’ve continued to grow as a leader and develop my company’s leadership development program.

Through his coaching, he helped me think more strategically about leadership, program design, and how to turn ideas into something meaningful and practical for our organization. He has a way of asking the right questions, offering thoughtful perspective, and giving advice that is both honest and immediately useful.”

Kelly Davis

Head of HR

“It is rare to encounter a program — and a leader behind it — that genuinely changes the way you see yourself. Greg Zlevor and his team did exactly that for me. I have had the privilege of experiencing his impact from two very different vantage points: first as a student, and later as a cohort sponsor.

Greg does not simply teach leadership frameworks but creates the conditions for genuine introspection.”

Jeff Kinzer

Vice President, CMC RA Biologics

“Greg is kind, wise, and is clearly a knowledgeable leader. Whether to a large group or intimate setting he always delivers actionable steps to enrich the lives of those he interacts with.”

Travis Loidolt

Orthopedic spine surgeon, investor

“Greg is a dynamic, creative, and truly inspirational leader and coach. I had the privilege of working closely with him throughout 2024 as part of the Leadership Development Program. His ability to synthesize complex research and distill it into practical, actionable strategies for leadership growth is unparalleled. Greg’s insights not only helped me refine my leadership approach but also provided long-term value that I will continue to draw upon for years to come.”

Nathan Drabek, MBA, MS

Executive leader in operations, portfolio and program management

“Greg’s leadership skills are exceptional; he has a unique ability to motivate and inspire his team to achieve their best work. He is not only a strategic thinker but also has the practical skills to execute complex programs/projects with ease.

His dedication to continuous learning and professional development is admirable, and it reflects in the quality of his work. Greg is an asset to any team, and I wholeheartedly recommend him for any endeavors he chooses to pursue.”

Albert Yeo

Assoc. Director, Manufacturing Operations · Bio-Rad Laboratories Singapore

“I had the distinct pleasure of participating in the Leadership Development Program led by Greg Zlevor, and I cannot recommend him highly enough. Greg’s coaching is unparalleled, offering one of the greatest learning experiences I have ever encountered. His empathy and understanding create a supportive environment that fosters deep personal and professional growth.”

Catalina Escalante

Entrepreneurial leader, growth catalyst in complex markets

“I recently attended a leadership round table hosted by Greg and was blown away with the discussions and contributions of the other panel members. I was given so many fantastic ideas I never would have thought of and was able to take immediate actions. This forum reminded me of the mastermind principle. What a creative way to share knowledge.”

Jason Mattis, MS, MBA

Digital innovation and strategy, healthcare & life sciences

“I had a wonderful experience participating in Westwood International’s Leadership Roundtable. It was a new and refreshing experience where I was able to meet fellow Learning and Development leaders from various industries. Greg and his team provided the right balance of structure while allowing organic conversation to flow. I appreciate the diverse professionals he brought to the table creating a safe space for us to share our best practices as well as challenges.”

Pareesa Nikpourfard

Senior Director, Talent Development

“During the Leadership Roundtable I shared a challenge and received more over the next 90 minutes than I could have imagined.

It was a group of generous and accepting leaders who have focused much of their careers creating and gaining wisdom in areas that I now need to know about.”

Dan Holmgren

CEO · Imagemakers

“I just wanted to say how impactful the Leadership Roundtable has been for me in the two sessions that I have attended. Having access to unbelievably professional and experienced leaders from around the world is a high privilege, and their feedback to me on the issues that I have presented have been very helpful as I craft strategy for my area of executive responsibility.”

Lonnie Scarborough, SPHR, SHRM-SCP

“‘Are you committed to working harder on yourself than you do on your job?’ This is the challenge Greg gave me and the other participants of the leadership program that I took with Westwood International.

Transformational… This is the impact Greg has had on me after actively participating in his program. The lessons and advice span beyond the classroom into all aspects of life. I highly recommend him to any organization or individual.”

Melissa Tokosh

Global regulatory affairs executive, certified leadership coach

“I had the privilege of working with Greg in one of Janssen’s corporate leadership programs. Greg is a highly talented facilitator, communicator and teacher. His style of engaging participants leaves no one on the sideline. Greg and his team kick started my leadership journey and I credit my transformational experience in the program to Greg and his team of coaches.”

Lindsay Cobbs

Life science regulatory policy expert

“Greg has worked with us as an Executive Coach, Facilitator and Leadership Learning guide for our Executive Quality Leadership Development Program. He has provided us with excellent insights to our own leadership journey, coached us through some rather difficult team relationship challenges and guided us along our own personal journeys. A master at recognizing what’s needed in the moment, he ensures that the overall outcome is achieved while flexing the methodologies to suit the situation.”

Ann Vu, JD, RAC

C-suite executive in quality & regulatory affairs

“It was a pleasure to attend Greg’s career talk at Harvard. His talk was mind blowing and he is very knowledgeable about psychology and how the mind works.”

Tracy Zhang

Senior Data Scientist · Spotify

“Greg recently conducted a Change Management workshop for a group of 55 clinical/medical operations professionals at the major pharmaceutical company that I work for. Greg was a pleasure to work with and he did an outstanding job with the workshop. Greg is an expert at what he does and his communication and facilitation skills are excellent. I highly recommend him for any team development efforts!”

Mike J.

Sr. Director, R&D Program Management · Pfizer

The next step

Start with a conversation.


Tell us where you stand; we will tell you what we see — and if we are not the right fit, you will hear that from us first.

What are you trying to change that has not changed yet?

Or write us directly at getstarted@westwoodintl.com.