Originated in 1988 as a single-family office for the Kelly family by founders Donald P. Kelly, Bill White and Mike Brunell, Whitnell & Co. at Rockefeller Global Family Office is a wealth management organization based in Oak Brook, Illinois. For more than a quarter-century, we have preserved and enhanced the wealth of affluent families, some of whom have been with us for three generations.
It is our mission to provide affluent families with comfort and peace of mind so they can focus their energies on what matters most to them: their families, their businesses and careers and the charitable causes they pursue with passion.
As wealth managers, our primary focus is to provide our clients with a wide range of services designed to reduce life’s worries. Through deep and meaningful conversations, we come to understand each client’s unique position in life:
- Who they love.
- What they dream about.
- What they hope for the future.
- What they fear.
- What they want their wealth to do for them and their family.
We aspire to redefine and elevate the financial services experience through our dedication to excellence in all that we do. We leverage our heritage, client-centric culture and wide-ranging resources to offer a business model designed to align with the varied objectives of our clients, emphasizing the aspects that are especially important to you.
(630) 575-2300
Suite 190
Oak Brook, IL 60523
“We are a global family office that has served the Rockefeller family since 1882, and the story of the first family in family wealth is our blueprint.”
Timothy D. O’Hara, Co-President of Rockefeller Global Family Office
Whitnell & Co. at Rockefeller Global Family Office is a wealth management organization based in Oak Brook, Illinois. For more than a quarter-century we have preserved and enhanced the wealth of affluent families, some of whom have been with us for three generations. It is our mission to provide affluent families with comfort and peace of mind so they can focus their energies on what matters most to them: their families, their businesses and careers and the charitable causes they pursue with passion.

MIA ERICKSON

BRIAN HENDERSON

WAYNE JANUS

DAVID PECKENPAUGH

CHRISTY PEDERSEN

MICHAEL LOIZZI

BARBARA WHITING

CRAIG JANUS
Our commitment to bringing expertise from multiple viewpoints is brought to the forefront when collaborating with the following individuals. The Rockefeller difference is the expertise we can bring to all aspects of your life.

TIMOTHY D. O’HARA
(212) 549-5360

JIMMY CHANG, CFA®
(212) 549-5218

TOM DAVIDSON
tdavidson@rockco.com
(302) 830-3720

CANDICE DIAL
(212) 549-5107

CHLOE DUANSHI, CFA®
cduanshi@rockco.com
(212) 549-5374

ADRIENNE HART
ahart@rockco.com
(484) 209-2037

TIMOTHY LAFFEY
tlaffey@rockco.com
(484) 209-2062

ELISABETH O. MADDEN
emadden@rockco.com
(212) 549-5413

ELIZABETH P. MUNSON
(212) 549-5400

JOSEPH ROBERTS
jroberts@rockco.com
(484) 209-2043

R. MITCHELL THEISS
mtheiss@rockco.com
(212) 549-5309

BARRY WINTNER
bwintner@rockco.com
(212) 549-5287

GRACE YOON
(212) 549-5392
Customized Investment Strategy Design
We diagnose and evaluate your financial situation and design a tailored investment strategy for you, combining long-term goals and near-term opportunities.
Portfolio Management & Optimization
We manage your complete financial ecosystem including tax & estate planning, insurance, retirement entities, and your investments.
Investment, Tax & Legal Advisor Coordination
We work with your Tax Advisor to manage your investments in a tax-efficient manner and coordinate with your Attorneys to help plan your estate, structure business transactions, and manage charitable donations.
Risk Management
We align your portfolio with your tolerance for risk and monitor your allocation for unexpected behavior in multiple market conditions.
Cash Management, Optimization, & Access
We handle all cash activity and cash equivalents including loans, banking products, and mortgages.
Ongoing Monitoring & Performance Analytics
We provide you with a high level of transparency through advanced analytics and regular meetings with our team.


Customized Investment Strategy Design

Portfolio Management & Optimization
We manage your complete financial ecosystem including tax & estate planning, insurance, retirement entities, and your investments.

Investment, Tax, & Legal Advisor Coordination
We work with your CPA to manage your investments in a tax-efficient manner and coordinate with your attorneys to help plan your estate, structure business transactions, and manage charitable donations.

Risk Management
We align your portfolio with your tolerance for risk and monitor your allocation for unexpected behavior in multiple market conditions.

Cash Management, Optimization, & Access
We handle all cash activity and cash equivalents including loans, banking products, and mortgages.

Ongoing Monitoring & Performance Analytics
We provide you with a high level of transparency through advanced analytics and regular meetings with our team.

- Financial Accounting & Bookkeeping
- Trust & Estate Planning
- Tax Efficient Planning & Preparation
- Family Legacy & Governance Advisory
- Bill payment
- Philanthropy advisory
- Human Resources Services
- Cash flow and liquidity planning
- Next Gen Financial Education
- Aggregated Reporting

Rockefeller Capital Management provides strategic advice to ultra-high-net worth families, family offices, individuals and corporations. Families that own businesses or are interested in purchasing a business can come to Rockefeller Capital Management for thoughtful, tailored advice on whether to sell a business, sell a portion of a business, purchase a business or grow an existing business.
Rockefeller Capital Management also works with corporations seeking customized, innovative solutions and independent advice on strategic transactions. Our focus is to deliver exceptional results for our clients through flawless execution and to help clients achieve their strategic goals.
Rockefeller Capital Management provides securities activities and services through Rockefeller Financial LLC, its registered broker-dealer, member FINRA, SIPC.
• Differentiated, independent advice for entrepreneurs and business owners
• Execution across private and public companies owned or operated by our clients
• Mergers, acquisitions, divestitures, capital raises
• Real estate advisory
• Sports franchise advisory

Rockefeller Asset Management offers equity and fixed income strategies across active, multi-factor passive, and thematic approaches that seek outperformance over multiple market cycles, driven by a disciplined investment process and a highly collaborative team culture. Drawing on the intellectual capital built over the past 40 years, Rockefeller Asset Management offers investment solutions integrating ESG research and a constructive engagement approach.
Equity Strategies
- We offer global, U.S., and non-U.S., thematic dedicated environmental, social and governance (“ESG”) equity strategies for institutions and individuals. A core differentiator of Rockefeller’s approach is our well established practice of constructively engaging shareholders in a way that drives long-term value creation across portfolios and improves ESG standards globally.
Fixed Income Strategies
- We offer a range of tax-exempt and taxable fixed income strategies, serving high-net worth and family office clients. Our fixed income investment process employs an analysis of macro-economic conditions complemented by fundamental credit research set within a sophisticated risk management and portfolio construction framework.

We are pleased to offer our clients and their families special access and privileges through a handful of thoughtfully vetted and selected partners – each preeminent providers in their respective fields – providing highly personalized support on how to simplify, navigate, and elevate modern life.
Private Aviation
• A unique private aviation platform designed exclusively for Rockefeller Capital Management Clients
Private Health Advisory
• Proactive health and wellness support, travel/emergency contingency 24/7 and complete management of any health concern.
Personal Security
• A total security solution tailored to each client and location, assessing their needs and goals.
Emergency Travel Services
• The world’s leading organization providing medical, security, evacuation, travel risk and crisis management services.
Art Advisory
• With access to specialists in art and collectibles globally, experts will provide guidance through the sales and acquisition process.
Next Gen Advisory
• Career and life coaching for emerging professionals, as well as health and wellness resources for young adults.
Elder Care
• A unique benefit that can help with everything related to aging, elder care or special needs.
Virtual Specialty Care
• A virtual specialty care platform that leverages sophisticated technology to curate access to a network of leading doctors across 48 US hospitals for expert insights on specific health concerns.
Once in a Lifetime Experiences
• Almost any “bucket list” wish can be fulfilled for Rockefeller clients with VIP-savvy concierge experts who can pave the way to once-in-a-lifetime experiences, whether meeting global stars, participating in iconic events, or realizing other long-held dreams.
Unique Travel Experiences
• A leading travel concierge service that offers exclusive planning and booking for Rockefeller clients seeking unforgettable vacations. Clients have access at member-only rates to unique settings and destinations with family privileges.
Purpose-Driven Wine Platform
• A leading wine-appreciation platform offering a single source for Rockefeller clients interested in fine wines, insider offers and access to unique experiences. Clients can obtain allocated, reserve, library and collector-level wines. Through the Rockefeller Live Well Do Good Membership Program, a portion of profits go to support The Ocean Foundation.
Cyber Security
• An exclusive boutique company with a proven history of providing elite cyber-protection services for all digital security needs of individuals and their families to eliminate the risk of cyberattacks.
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