The Withum Way

We believe that knowing who you are comes from knowing what you stand for. At Withum, we stand for doing things The Withum Way. This unique philosophy and culture, built on integrity, trust and transparency, give us the strength to create immense opportunities for our clients, team members and communities.

We’re not your regular advisory, tax and accounting firm. Growth and success come from taking the time to understand your business, where you want to go and what you want to achieve. We put our clients at the forefront of the modern business environment through collaboration, an entrepreneurial lens and a technology-forward mindset.

Take a Trip Through Time

Take a trip through time and see how a one-office, four-accountant operation became a Top 25 national leader in accounting, tax, audit and advisory services.

Establishing the Legacy

  • On March 21, 1974, Fred Withum, Len Smith and Ivan Brown, who were "Big Eight" alum, had a unified vision to create something special: a professional services firm that puts people first. Withum, Smith & Brown, P.C., opens in Milltown, NJ, with just two staff accountants.
Withum founders

First Major Expansion

  • Withum expands across New Jersey into New Brunswick and down the Jersey Shore in Toms River.
  • The team grows, acquiring other small firms around its existing offices, and together, they launch a formal Tax Department to address growing complexities in business tax.
Withum first expansion

The New Millennium

  • To meet the needs of turn-of-the-century clients, Withum establishes an IT Consulting Practice.
  • On a vigorous growth trajectory, Withum becomes a member of HLB International, the Global Network of Accounting Firms.
  • The Women's Leadership Development Group becomes the Firm's first official Team Member Resource Group, led by team members breaking glass ceilings. Now called Women of Withum, members and allies continue the mission of motivating, advocating and elevating women in the profession.
Women of Withum

Setting the Stage for Growth

  • With a host of new team members boasting specialized expertise in new locations, Withum defines its go-to-market strategy in construction, consumer products, financial services, healthcare, life sciences, manufacturing, not-for-profit, professional services, real estate and technology.
  • Bill Hagaman is appointed as Withum’s CEO and Managing Partner, succeeding co-founder Ivan Brown after 21 years.
CEO Bill Hagaman

Going Viral

  • Withum releases the first of what becomes its annual Culture Video, lip-dubbing and dancing to the Black Eyed Peas song, “I Gotta Feelin’”. The video takes the accounting profession by surprise, garnering national attention and breaking accounting stereotypes, demonstrating that accountants can be fun.
  • The following year’s video, featuring a flash mob and team members dancing in subways and on the streets of NYC, lands Withum on the cover of Accounting Today, with the video garnering tens of thousands of views.
Withum flash mob

Culture Explosion

  • The Withum Way 10 Tenets come to life as a blueprint for the Firm’s unique culture. It embodies the philosophy and values of the team, promotes client success and supports growth.
  • Withum introduces its inaugural Week of Caring, igniting an annual tradition where team members take to their communities to give back during the days leading up to the U.S. Thanksgiving holiday.
  • The Firm expands into Philadelphia, Orlando, Boston and the DC Metro Area, amplifying its presence and infusing its culture into major financial centers.
Withum Week of Caring Philly

Withum Goes Global

  • Withum hits the West Coast in California, Oregon and Washington, and gains new offices in Massachusetts, Rhode Island and Tennessee.
  • India becomes home to Withum’s first international full-scale office with over 200 team members.
  • Pat Walsh steps into the role of Managing Partner and CEO.
Withum in India

50 Years Strong

  • Withum reaches over 2,400 team members worldwide and over half a billion in revenue.
  • The Firm celebrates 50 years in business the Withum Way on March 21, 2024. Fifty years later, we still believe that people are the driving force to achieve growth and success. When a team aligns on values and delivers the necessary support and tools needed to succeed, it fuels innovation and delivers stronger results.
Withum 50

Withum by the Numbers


Team Members


Revenue Growth Since Inception




Partners and Principals


What Our Clients Are Saying

We're able to make solid, well-thought out decisions because Withum continually brings us the highest quality service and professionalism.

Tom Vollers, President and CEO

Withum's OASyS Service Team reduced the time I spent on accounting work, minimizing my worry about the accounting records. The Team also increased efficiencies by helping us implement Expensify. Using Withum has freed up an enormous amount of time, allowing me to focus on my semi-retirement and the more critical aspects of the business.

Susan Meyer, Director of Operations | Jennifer Brett Communications, LLC

Interested in Learning More?

Contact us to discover why Withum is the advisory, tax and accounting firm businesses choose to help them grow and thrive.

Meet the Team

Get to know the experienced tax, accounting and advisory professionals who are the catalysts for the growth and success of our clients. Purpose-driven, we help businesses be more profitable, efficient and productive in today’s fast-paced, tech-driven world.

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Experience the Culture

Values-driven with a commitment to advance inclusion and diversity in all aspects of our business, we live the Withum Way – 10 tenets that define the essence of Withum’s unique culture. We are #OneWithum.

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Be a Part of the Team

Chart your own course at Withum. It’s a place where you can design your own long-term and professional career to support your lifestyle and meet your own distinct interests. We believe in the power of the individual and the diverse perspectives they bring to work every day. And it’s why you belong here.

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