Your success is our mission.

We guide leaders and project teams through ERP and digital transformations. We align people, process, technology, and strategy to drive adoption, performance, and lasting impact.

Leveraging the accumulated experience of our founder across global ERP and change initiatives, we bring clear-eyed guidance, proven methods, and steadfast advocacy to ensure your teams navigate change confidently and achieve measurable results.

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Our Founder

Dawn Williams-Zabicki is the President of Envoy Change Management, LLC.

Dawn brings over 25 years of proven expertise in organizational change management, driving transformation both as a consultant with Big 4 firms and as an IT leader within industry. She has guided enterprise-wide technology implementations and complex strategic programs, recognized for her ability to translate vision into action while bringing deep knowledge and a passion for the people and organizational dimensions of change.

Dawn’s core capabilities span:

  • Designing and executing change strategies

  • Aligning leadership around transformation goals

  • Engaging stakeholders through clear, compelling communication

  • Anticipating and managing resistance to change

  • Designing operating models to enable new ways of working

  • Building enterprise-level change capability

  • Driving culture evolution to sustain performance

  • Leading large-scale ERP initiatives

  • Accelerating digital transformation journeys

  • Integrating organizations through M&A activity

A woman with shoulder-length brown hair, smiling, dressed in a black blazer over a light blue shirt, wearing a silver necklace, in an indoor setting with natural light.

Dawn’s industry experience is broad and diverse, including industrial and consumer products manufacturing, utilities, government, healthcare, and financial services.

She holds a MS in Organizational Leadership from Geneva College, an MBA from Université Libre de Bruxelles, Solvay Business School in Belgium, and a BA in International Studies from the University of South Florida. Beyond her professional career, Dawn has served on both corporate and non-profit boards and was elected as a commissioner—ultimately serving as president of the board of commissioners in a Pittsburgh suburb—further demonstrating her commitment to leadership and community impact.

Our Mission

To guide leaders through technology-driven transformation, leveraging Oracle, Infor, SAP, and other platforms as catalysts to align people, processes, and strategy for sustained change and measurable impact.

Our Purpose

At Envoy, we know that transformation isn’t just about systems — it’s about people.

Organizational change creates opportunities for more meaningful work through better ways of operating, while enabling people to connect, grow, and deliver greater value to those they serve.

Two colleagues, a man and a woman, happily giving each other a high five in an office setting with a brick wall and a whiteboard in the background.

To be the most trusted and respected organizational change management consulting firm in the ERP implementation space — known for end-to-end expertise, clear-eyed guidance, and fierce advocacy on behalf of our clients.

Our Vision

Our Team

Behind every successful transformation is a team of passionate professionals. Our extended team includes seasoned consultants who bring specialized expertise to each client engagement. These trusted partners extend our reach and strengthen our ability to deliver exceptional outcomes.

  • Close-up of smiling woman with long brown hair, wearing a black and white striped top and a beaded necklace, against a plain light background.

    Sarah Brelowski

  • A woman with shoulder-length brown hair, glasses, and a black top smiling with her arms crossed on a light blue background.

    Jenn Rillera

  • A man with a bald head wearing a light blue button-up shirt and a red polka dot tie, smiling at the camera with a plain light gray background.

    Barry Obsgarten

  • A woman with curly black hair wearing a yellow shirt and large multicolored earrings, smiling at the camera against a light blue background.

    Karly Spears

  • Whether in the gym or inside an organization, real transformation starts with a clear roadmap and the right coach. As both a certified personal trainer and an experienced IT, risk management and process improvement leader, Sarah brings a unique ability to guide people through change—building new habits, strengthening skills, and creating momentum.

    Sarah and Dawn have partnered for years across major ERP and technology-driven change initiatives. Their complementary strengths and shared approach make them a trusted, effective team for clients navigating complex transformation. In fact, Sarah’s expertise is embedded in nearly all of Envoy’s engagements, providing continuity, insight, and hands-on guidance that supports successful adoption and sustainable outcomes across industries.

    With nearly 20 years of experience across Duquesne Light, PPG Industries, U.S. Steel, and KPMG, Sarah is known for improving processes, building strong relationships, and driving alignment. Her background spans IT audit, security, change management, release management, and large-scale ERP deployments—always with a focus on clarity, structure, and practical coaching.

    As a personal trainer, Sarah helps individuals build confidence and sustainable habits. In the workplace, she applies the same philosophy: meet people where they are, provide a clear plan, and support them every step of the way.

  • Jenn Rillera is an Organizational Change and Customer Experience leader with 20+ years of guiding global teams through complex technology and process transformations.

    A PMP and PROSCI practitioner, she blends structured change leadership with deep customer-success experience to ensure adoption, alignment, and measurable business impact. Jenn led Cisco’s 21,000-global user Salesforce transformation and managed a $47M enterprise portfolio, partnering with Fortune 1000 clients to improve engagement, retention, and revenue.

    Known for her human-centered, strategic approach, she translates complexity into clear action, leverages story-telling as a powerful communication tool, empowers leaders through change, and delivers sustainable outcomes that elevate both employee experience and customer value. 

    Most recently, Jenn collaborated with Envoy on a critical recovery effort for a large charitable organization that had experienced a failed Finance, Human Capital Management, and Payroll implementation, helping leadership, project teams, and frontline staff move out of the “valley of despair,” rebuild trust in the system and process, and restructure teams and the steering committee to capture requirements, communication, and training needs. She also collaborated with the Envoy Team on a multi-year ERP implementation for North America’s largest network of travel centers and fueling stations.

    This collaboration provides additional and complementary OCM robustness, bringing extra hands, diverse perspectives, and deep experience to ensure successful adoption and sustainable results.

  • Barry brings 25+ years of experience as a Project Manager and Program Management Office leader, delivering ERP implementations across Healthcare, Retail, Energy, Finance, Public Sector, Transportation, Utilities, and more. He is passionate about creating high-quality, creative solutions to today’s technical challenges, combining focus, results, and enthusiasm in every engagement. Barry works with organizations to ensure implementation teams are structured for success, projects and workstreams are strategically planned, and programs are executed with a clear roadmap. 

    He and Dawn collaborated as Project Manager and OCM Leader, respectively, on a multi-year ERP implementation for North America’s largest network of travel centers and fueling stations, supporting thousands of employees and customers across the continent. Barry’s experience includes leadership roles at Nordic Consulting, Infor, Ciber Global, and Lawson. 

    Through partnership with Barry, Envoy can offer clients a seamlessly integrated OCM and PM approach, combining strong project execution with effective change management to drive adoption and results.

  • With over a decade of experience in education, Karly brings a deep understanding of how people learn to her work as an instructional designer. She creates purposeful and equitable learning experiences, including e-Learning modules, videos, and print guides that inform, engage, and drive growth. 

    Karly has developed micro-learnings for Envoy’s organizational change management initiatives, helping client leaders and team members understand the key domains of change management, build awareness, and strengthen knowledge to drive successful adoption and outcomes. 

    Through partnership with Karly, Envoy can offer instructional design and training capabilities, providing clients with expertly designed learning materials tailored to their needs.

Together, we bring the experience, insight, and collaboration to help you advance your mission and achieve results.

“Dawn and her team brought structure and clarity to a highly complex and regulated area of our anti-money laundering service line. They conducted a thorough assessment of our critical systems for tracking suspicious activity, mapped the architecture, and delivered a clear control framework with policies and procedures tailored to our needs. Just as importantly, they defined roles and responsibilities that positioned us to not only meet but sustain compliance with evolving federal and international regulations. Their work gave us confidence that we could manage these systems proactively and effectively going forward.”

Debra D’Arrigo, Former Anti-Money Laundering Compliance Officer, Tri-State Capital Bank