Andersen Global
Who We Are
Andersen provides a wide range of tax, valuation, financial advisory, and related consulting services to individuals, families, businesses, and funds.
Strength in Numbers
Andersen is the founding member of Andersen Global, an international association of legally separate, independent member firms with more than 19,000 professionals worldwide, over 2,000 global partners, and a presence in over 500 locations in more than 170 countries. In the U.S., Andersen has more than 2,000 personnel located in 24 cities across the country. Andersen encompasses top advisors with previous experience in the international accounting firms, law firms, IRS, and state taxing authorities. Many of our advisors hold multiple professional credentials and have depth in a wide range of capabilities allowing us to provide clients with comprehensive, integrated solutions.
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Trust through Relationships
We specialize in full service individual and business entity tax compliance and consulting. Our clients are at the center of our operating model which is structured to allow us to be entrepreneurial and proactive in our approach, and enables our Managing Directors to “roll up their sleeves” and work directly with you.
As an Andersen client, the professionals you get to know in your first meeting are the same professionals who will be working with you throughout the process.
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Customized Service
Andersen delivers a full range of value-added solutions to our clients. We take the time to understand the intricacies of each individual and business so that we can tailor our service to each client's unique situation.
Learn more about the services we provide:
Learn MoreOur Core Values
Best-In-Class
We aim to be the benchmark for quality in our industry and the standard by which other firms are measured.
Stewardship
We hire the best and the brightest and we invest in our people to ensure that legacy.
Independence
Our platform allows us to objectively serve as our client’s advocate; the only advice and solutions we offer are those that are in the best interest of our client.
Seamless
Our firm is constructed as a global firm. We share an interest in providing the highest level of client services regardless of location.
Transparency
We value open communication, information sharing and inclusive decision making.
Growing Strong
Since 2002
2002
On July 9, 2002, Wealth & Tax Advisory Services, Inc. (WTAS) is formed. Anthony Pizziatolla, Pam Siegel, Darby Cunningham, Nicol Rogolaski. Liz Ortiz. Frank Jone, Dom Pizziatolla, Steven Sheppar, Keegan Morovich. Joseph Quinlan, Sebastiona Jones, Dom Inginao.
1
Locations
Growing Strong
Since 2002
2013
WTAS Global was established in June 2013.
20+
Locations
Growing Strong
Since 2002
2014
WTAS acquired the rights to the iconic brand name Andersen and renamed itself Andersen Tax.
90+
Locations
Growing Strong
Since 2002
2019
Andersen Tax becomes Andersen.
290+
Locations
Growing Strong
Since 2002
2025
Andersen Global launches Andersen Consulting and the Andersen Institute for Finance & Economics.
500+
Locations
Growing Strong
Since 2002
2002
On July 9, 2002, Wealth & Tax Advisory Services, Inc. (WTAS) is formed. Anthony Pizziatolla, Pam Siegel, Darby Cunningham, Nicol Rogolaski. Liz Ortiz. Frank Jone, Dom Pizziatolla, Steven Sheppar, Keegan Morovich. Joseph Quinlan, Sebastiona Jones, Dom Inginao.
1
Locations
Growing Strong
Since 2002
2013
WTAS Global was established in June 2013.
20+
Locations
Growing Strong
Since 2002
2014
WTAS acquired the rights to the iconic brand name Andersen and renamed itself Andersen Tax.
90+
Locations
Growing Strong
Since 2002
2019
Andersen Tax becomes Andersen.
290+
Locations
Growing Strong
Since 2002
2025
Andersen Global launches Andersen Consulting and the Andersen Institute for Finance & Economics.