Top Consultant with RJ Lumba

Top Private Equity Consultant: Accenture’s Rachel Barton

In this episode, we speak with Rachel Barton, Senior Managing Director and Global Lead for Private Equity at Accenture. Rachel works across the deal lifecycle, advising private equity firms and portfolio company executives on technology diligence, value creation, and complex transformation initiatives.
With more than 20 years of experience at the intersection of business and technology, Rachel focuses on revenue growth, operating models, and AI-driven strategies that support investment outcomes. She has spent nearly two decades at Accenture in progressively senior leadership roles, working with private equity clients across industries.
Rachel was recognized by The Consulting Report as a Top 25 Private Equity Consultant and Leader in 2024 and 2025.
Accenture is a global professional services company operating in more than 120 countries, combining technology capabilities with industry expertise to support clients across sectors.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Customer Experience Consultant: TTEC’s Dave Seybold

In this episode, we speak with Dave Seybold, CEO of TTEC Digital. Dave leads TTEC Digital’s customer experience consulting and technology services business, focused on contact center platforms, CRM, and AI-enabled customer interactions.
Dave brings more than 30 years of experience in consulting and technology services. Before joining TTEC Digital, he held senior executive leadership roles at IBM, Avanade, and Atos, leading global teams while living in Bangalore, Madrid, and the U.S. He became CEO in 2022, following TTEC Digital’s expansion into CX consulting and technology services through a series of acquisitions.
TTEC Digital was recognized by The Consulting Report as one of the Top Consulting Firms of 2025.
TTEC Digital provides customer experience consulting, systems integration, and managed services to organizations across industries.
Dave supports Moveable Feast. To learn more about this organization click here.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top M&A Consultant: Sikich’s Kurt Estes

In this episode, we speak with Kurt Estes, Principal and Head of Corporate Development at Sikich.
Kurt focuses on M&A strategy and execution for Sikich’s growth initiatives. Since joining the firm in 2008, he has overseen more than 20 acquisitions and has led dozens of transactions through Sikich’s investment banking practice. His background spans corporate development, investment banking, venture capital, and innovation, and he holds more than 25 patents.
Kurt was recognized by The Consulting Report as a Top 25 M&A Consultant and Leader of 2025.
Sikich is a professional services firm providing consulting, technology, and compliance services to public and private sector organizations, with approximately 2,000 team members and operations across North America, the UK, and EMEA.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Life Sciences Consultant: Accenture’s Petra Jantzer

In this episode, we speak with Dr. Petra Jantzer, Global Life Sciences Lead at Accenture. Petra oversees one of the firm’s largest industry groups, spanning work across the entire life sciences value chain. She also leads Accenture’s services for a major multinational pharmaceutical client, managing a broad portfolio of engagements across R&D, operations, and commercial functions.
Petra began her career as a molecular biologist and oncology researcher before moving into consulting. She spent many years at McKinsey working across R&D and corporate strategy, later joining Accenture, where much of her focus centers on how data and intelligent technologies influence scientific processes and business performance.
Petra was recognized by The Consulting Report as a Top Life Sciences Consultant and Leader in 2023, 2024, and 2025.
Accenture is a global professional services company operating in more than 120 countries, combining technology capabilities with industry expertise to support clients across sectors.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Insurance Consultant: EY’s Chris Raimondo

In this episode, we speak with Chris Raimondo, Americas Consulting Insurance Leader at EY. Chris oversees the full suite of consulting services EY provides to insurance carriers across property and casualty, life and annuity, reinsurance, and brokerage.
Chris has more than 20 years of global experience in the insurance industry, with work spanning business consulting, technology and data implementation, actuarial and risk services, and workforce consulting. He has led large-scale transformation programs for major domestic and international insurers, including multi-year efforts to move core systems from legacy platforms to modern cloud technology. 
Chris was recognized by The Consulting Report as one of the Top Insurance Consultants and Leaders of both 2024 and 2025.
Chris supports Little Kids Rock. To learn more about this organization click here.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Private Equity Consultant: Oliver Wyman’s Apurva Nair

In this episode, we speak with Apurva Nair, a Partner at Oliver Wyman, where he leads post-deal value creation within the firm’s Private Equity practice.
Apurva works with private equity firms and their portfolio companies to improve operational and financial performance, often focusing on cost, pricing, and EBITDA growth. Most of his projects take place immediately after an acquisition, helping portfolio companies strengthen margins and prepare for exit. Before joining Oliver Wyman, he served as Partner and COO at a boutique consulting firm with operations across the U.S., Europe, and Asia.
Apurva was recognized by The Consulting Report as one of the Top Private Equity Consultants and Leaders of both 2024 and 2025.
Oliver Wyman is a global management consulting firm advising clients across industries on strategy, operations, and organizational transformation.
Apurva supports Taproot Foundation. To learn more about this organization click here.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Private Equity Consultant: Stax’s Phil Dunne

In this episode, we speak with Phil Dunne, UK Managing Director at Stax, where he leads the firm’s business across the UK and EMEA.
Phil brings more than 25 years of experience spanning industry and consulting, with a focus on supporting private equity clients through commercial due diligence, value creation, and exit planning. Before joining Stax, he served as UK Managing Partner at Roland Berger, Partner at EY leading the EY-Parthenon Strategy team, and UK Managing Partner and leader of the private equity practice at Kearney. 
Phil was recognized by The Consulting Report as one of the Top Private Equity Consultants and Leaders of both 2024 and 2025.
Stax is a global consulting firm that supports corporate and private equity clients across industries such as the technology, healthcare, education, and consumer sectors. The firm delivers data-driven insights to help clients accelerate growth, boost profitability, and make smarter investment decisions. 
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.

Top Sustainability Consultant: PwC’s Meghan Harris-Ngae

In this episode, we speak with Meghan Harris-Ngae, a Partner at PwC Canada, where she leads ESG Strategy, Integration, and Transformation, and serves as Global Sustainability Private Business Leader.
With more than two decades of experience across industries and markets, Meghan helps C-suites and boards integrate sustainability into their core business models, guiding organizations through climate transition, regulatory shifts, and broader transformation agendas. She was recognized by The Consulting Report as one of the Top 25 Sustainability Consultants and Leaders of both 2024 and 2025.
PwC is a global professional services leader operating in 151 countries, delivering audit, assurance, tax, and consulting solutions across sectors.
Meghan supports Tree Canada. To learn more about this organization, click here.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode click to follow.

Top Healthcare Consultant: Atos’ Manish Mehta

In this episode, we speak with Manish Mehta, the Business Unit Head of Health and Life Sciences and Telecom, Media, and Technology at Atos.
Manish leads a $400 million business unit focused on driving digital transformation across North America’s healthcare and life sciences sectors, including payers, providers, pharma, medical devices, and healthtech. He brings deep expertise in AI, cloud computing, and data analytics to improve patient outcomes and streamline healthcare operations.
Manish was recognized by The Consulting Report as one of The Top 25 Healthcare Consultants and Leaders of 2024.
Atos is a global leader in managed services, cybersecurity, cloud, and high-performance computing, providing secure and decarbonized digital solutions across 69 countries.
Manish supports Catchafire. To learn more about this organization click here.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode click to follow.

Top Healthcare Consultant: BDO’s Brad Boyd

In this episode, we speak with Brad Boyd, Principal and National Healthcare Consulting Practice Leader at BDO USA.
Brad brings over 25 years of experience working with provider organizations, payers, private equity, and IT companies to deliver high-value consulting engagements that improve care delivery, enhance the experience of patients and providers, and drive operational and financial performance.
Brad was recognized as one of The Top 50 Healthcare Consultants and Leaders of 2024.
BDO is a leading global network providing assurance, tax, and advisory services, with a people-first culture that helps clients thrive by turning business as usual into better than usual.
I am your host RJ Lumba. We hope you enjoy the show. If you like the episode, click to follow.